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Jensenius, Alexander Refsum
(2024).
Instruments, sounds, music and interaction.
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Jensenius, Alexander Refsum & Laczko, Balint
(2024).
Video Visualization.
Vis sammendrag
This workshop is targeted at students and researchers working with video recordings. You will learn to use MG Toolbox, a Python package with numerous tools for visualizing and analyzing video recordings. This includes visualization techniques such as motion videos, motion history images, and motiongrams; techniques that, in different ways, allow for looking at video recordings from different temporal and spatial perspectives. It also includes some basic computer vision analysis, such as extracting quantity and centroid of motion, and using such features in analysis.MG Toolbox for Python is a collection of high-level modules for generating all of the above-mentioned visualizations and analyses. This toolbox was initially developed to analyze music-related body motion but is equally helpful for other disciplines working with video recordings of humans, such as linguistics, psychology, medicine, and educational sciences.
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Jensenius, Alexander Refsum
(2023).
Introducing MusicLab.
Vis sammendrag
In 2021, one of the world’s finest string quartets, The Danish String Quartet (DSQ), and a large team of international researchers based at RITMO, co-hosted MusicLab Copenhagen – a groundbreaking event where DSQ performed their best repertoire while researchers experimented with, measured, and analyzed the experiences and behavior of musicians and audience. Some of the questions we tried to answer were: Do we become one grand “we” when absorbed in music together? How do we synchronize our bodily rhythms with the music during a concert? As an innovative musical and scientific format, the concert has been widely reported and won “Event of the Year” by the Danish National Broadcasting Corporation (DR P2). Now, the researchers have completed their analyses, and we are excited to share findings in a hybrid launch event.
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Jensenius, Alexander Refsum
(2023).
Tverrfaglig forskning på rytme, tid og bevegelse.
Vis sammendrag
RITMO er et unikt SFF på grunn av sin radikalt tverrfaglige oppbygning. Hvordan fungerer det i praksis?
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Jensenius, Alexander Refsum
(2023).
Sound Actions: Conceptualizing Musical Instruments.
Vis sammendrag
How do new technologies change how we perform and perceive music? What happens when composers build instruments, performers write code, perceivers become producers, and instruments play themselves? These are questions addressed in the new book by Professor Alexander Refsum Jensenius: Sound Actions: Conceptualizing Musical Instruments published by the MIT Press.
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Jensenius, Alexander Refsum
(2023).
Sound Actions - Conceptualizing Musical Instruments.
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Jensenius, Alexander Refsum
(2023).
Explorations of human micromotion through standing still.
Vis sammendrag
Throughout 2023, I will stand still for ten minutes around noon every day, in a different room each day. The aim is to collect data about my micromotion and compare it to the qualities of the environment. This project follows a decade-long exploration of human micromotion from both artistic and scientific perspectives. In the talk, I will present results from the annual Norwegian Championships of Standstill, where we have studied the influence of music on people's micromotion. I will also talk about how micromotion can be used in interactive music systems, allowing for conscious and unconscious control of musical sounds.
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Jensenius, Alexander Refsum
(2023).
Exploring Human Micromotion Through Standing Still.
Vis sammendrag
Moving slowly likely puts us into a special state of mind. Subjective reports from various practices including dance, Tai Chi and walking meditation suggest that slow movements can bring participants into a special state involving increased relaxation and awareness. Interestingly, relatively little research has been performed specifically to understand the underlying mechanisms and the possible applications of human slow movement. One reason might be that slow movements are not common in day-to-day life: when we want to move – for example to pick up our cup of coffee - we usually want to do it now. Some evidence suggests that humans tend to avoid moving slowly in different tasks, for example, when improvising movements together. The goal of this meeting is to bring together scholars and practitioners interested in slow movement, and to foster interdisciplinary research on this somewhat neglected topic.
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Lartillot, Olivier; Thedens, Hans-Hinrich; Mjelva, Olav Luksengård; Elovsson, Anders; Monstad, Lars Løberg & Johansson, Mats Sigvard
[Vis alle 8 forfattere av denne artikkelen]
(2023).
Norwegian Folk Music & Computational Analysis.
Vis sammendrag
As a prélude for Norway's Constitution Day, this special event celebrated the Norwegian folk music tradition, showcasing our new online archive and demonstrating the richness of Hardanger fiddle music, with live performance. One aim of the project is to conceive new technologies allowing to better access, understand and appreciate Norwegian folk music.
In this event, we introduced a new online version of the Norwegian Folk Music Archive and discuss underlying theoretical and technical challenges. A live concert/workshop, with the participation of Olav Luksengård Mjelva, offered a lively introduction to Hardanger fiddle music and its elaborate rhythm. The interests and challenges of automated transcription and analysis were discussed, with the public release of our new software Annotemus.
The symposium was organised in the context of the MIRAGE project (RITMO, in collaboration with the National Library of Norway's Digital Humanities Laboratory).
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Riaz, Maham; Upham, Finn; Burnim, Kayla; Bishop, Laura & Jensenius, Alexander Refsum
(2023).
Comparing inertial motion sensors for capturing human micromotion.
Vis sammendrag
The paper presents a study of the noise level of accelerometer data from a mobile phone compared to three commercially available IMU-based devices (AX3, Equivital, and Movesense) and a marker-based infrared motion capture system (Qualisys). The sensors are compared in static positions and for measuring human micromotion, with larger motion sequences as reference. The measurements show that all but one of the IMU-based devices capture motion with an accuracy and precision that is far below human micromotion. However, their data and representations differ, so care should be taken when comparing data between devices.
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Bukvic, Ivica Ico; Jensenius, Alexander Refsum; Wittman, Hollis & Masu, Raul
(2023).
Implementing the new template for NIME music proceedings with the community.
Vis sammendrag
We will analyze a new possible template for NIME submissions which would simplify the integration of NIME music performances in the COMPEL, a database which facilitates navigation across different categories (pieces, persons, instruments). The template emerges from a workshop run last year at NIME about the structure of COMPEL and the process of entering all performances presented last year. From this workshop we expect to improve the template and validate it with a community.
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Masu, Raul; Morreale, Fabio & Jensenius, Alexander Refsum
(2023).
The O in NIME: Reflecting on the Importance of Reusing and Repurposing Old Musical Instruments.
Vis sammendrag
In this paper, we reflect on the focus of “newness” in NIME research and practice and argue that there is a missing O (for “Old”) in framing our academic discourse. A systematic review of the last year’s conference proceedings reveals that most papers do, indeed, present new instruments, interfaces, or pieces of technology. Comparably few papers focus on the prolongation of existing NIMEs. Our meta-analysis identifies four main categories from these papers: (1) reuse, (2) update, (3) complement, and (4) long-term engagement. We discuss how focusing more on these four types of NIME development and engagement can be seen as an approach to increase sustainability.
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Karbasi, Seyed Mojtaba; Jensenius, Alexander Refsum; Godøy, Rolf Inge & Tørresen, Jim
(2023).
Exploring Emerging Drumming Patterns in a Chaotic Dynamical System using ZRob.
Vis sammendrag
ZRob is a robotic system designed for playing a snare drum. The robot is constructed with a passive flexible spring-based joint inspired by the human hand. This paper describes a study exploring rhythmic patterns by exploiting the chaotic dynamics of two ZRobs. In the experiment, we explored the control configurations of each arm by trying to create un- predictable patterns. Over 200 samples have been recorded and analyzed. We show how the chaotic dynamics of ZRob can be used for creating new drumming patterns.
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Jensenius, Alexander Refsum
(2023).
Innovasjon og åpen forskning.
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Jensenius, Alexander Refsum
(2023).
The assessment of researchers is changing – how will it impact your career?
Vis sammendrag
Changes are happening in the world of research assessment, for example by recognizing several competencies as merits and a better balance between quantitative and qualitative goals. In Norway, for example, Universities Norway presented the NOR-CAM report in 2021 which sparked a movement for reform. As an early career researcher, it's crucial to understand how these changes may impact your research career. In this talk, Jensenius will discuss the evolving landscape of research assessment and what it means for you.
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Jensenius, Alexander Refsum
(2023).
Observing spaces while standing still.
Vis sammendrag
Throughout 2023, I stand still for ten minutes around noon every day, in a different room each day. This project follows a decade-long exploration of human micromotion from both artistic and scientific perspectives. Previously, I have been interested in the impact of music. Now, I am listening to ventilation systems, elevators, and people walking and talking and reflecting on how they influence my body and
mind. The aim is to understand more about the rhythms of the environment.
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Swarbrick, Dana; Danielsen, Anne; Jensenius, Alexander Refsum & Vuoskoski, Jonna Katariina
(2023).
The Effects of “Feeling Moved” and “Groove” On Standstill.
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Jensenius, Alexander Refsum
(2023).
Musikk og kunstig intelligens.
Vis sammendrag
Kunstig intelligens kan allerede skrive noter og mikse musikk. I tiden fremover vil vi se mange eksempler på hvordan maskinlæring tas i bruk i musikkutøving og -produksjon og til å skape nye lytteopplevelser. Men hva er egentlig musikalsk kunstig intelligens? Hva vil det si å trene en maskinlæringsmodell? Vil maskinene gjøre musikere og komponister overflødige? Denne forelesningen vil gi deg en del svar, men også flere spørsmål.
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Jensenius, Alexander Refsum & Sørnes, Astrid Johanne
(2023).
Beatles med ny låt.
[Internett].
NRK.
Vis sammendrag
«Now And Then» er ferdigstilt av Paul McCartney og Ringo Starr – med litt hjelp frå kunstig intelligens.
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Jensenius, Alexander Refsum
(2023).
Forskarperspektivet.
Vis sammendrag
Denne hausten har Utkast til strategi for norsk vitenskapelig publisering etter 2024 vore ute til høyring. Strategien skildrar tilrådingar til både forskarar, forskingsutførande institusjonar, forskingsfinansiørar og myndigheiter. I dette seminaret inviterer vi ein av dei som har utarbeidd strategien, Vidar Røeggen frå Universitets- og Høgskolerådet, til å fortelje om arbeidet med rapporten, innspel som har komme inn og korleis han ser for seg det framtidige publiseringslandskapet. Deretter går ordet til Alexander Jensenius (UiO, NOR-CAM), Johanne Raade (UiT) og Marte Qvenild (NFR), til å diskutere korleis dei ser framtida for open publisering etter 2024, frå perspektivet til ein forskar, institusjon og finansiør, høvesvis. Ser dei andre utfordringar enn dei som er forsøkt møtt i den nye strategien?
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Jensenius, Alexander Refsum
(2023).
Still Standing: The effects of sound and music on people standing still.
Vis sammendrag
Throughout 2023, I have been standing still for ten minutes around noon every day, in a different room each day. This project follows a decade-long exploration of human micromotion from both artistic and scientific perspectives. In the talk, I will present results from the annual Norwegian Championships of Standstill, where we have studied the influence of music on people's micromotion. I will also talk about how micromotion can be used in interactive music systems, allowing for the conscious and unconscious control of musical sounds.
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Jensenius, Alexander Refsum
(2023).
Still Standing: The effects of sound and music on people standing still.
Vis sammendrag
Throughout 2023, I have been standing still for ten minutes around noon every day, in a different room each day. This project follows a decade-long exploration of human micromotion from both artistic and scientific perspectives. In the talk, I will present results from the annual Norwegian Championships of Standstill, where we have studied the influence of music on people's micromotion. I will also talk about how micromotion can be used in interactive music systems, allowing for the conscious and unconscious control of musical sounds.
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Jensenius, Alexander Refsum; Danielsen, Anne & Søndergaard, Pia
(2023).
Hvor blir det av UiOs alumni-satsing?
Uniforum.
ISSN 1891-5825.
Vis sammendrag
Det snakkes i festlige lag om at våre alumni er en ressurs. Dessverre viser praksis at man ikke bare ignorerer tidligere ansatte, men aktivt forsøker å fjerne alle spor av at de har forsket ved institusjonen.
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Jensenius, Alexander Refsum & Zürn, Christof
(2023).
Standing still with Alexander Refsum Jensenius.
[Internett].
The Power of Music Thinking.
Vis sammendrag
What is the use of standing still for 10 minutes? I was asking myself when I saw a post on social media. It was a double picture of a man with a mobile phone around his neck displaying some data, and another picture showed the view he saw at that moment. I learned that he stood there for 10 minutes without any movement, listening to the sound that was already there. There were many pictures like this, and I decided to get in contact.
So, today, we are in Oslo. We speak with Alexander Refsum Jensenius, a professor of music technology at the University of Oslo, a book author, a music researcher and researching musician working in the fields of embodied music cognition and new interfaces for musical expression.
Alexander shares with us his experiences while performing and testing with artistic methods of embodied listening and how people experience music and sound. This goes from experiments with and without the conductor of a Symphony Orchestra to the sounds of our kitchen appliances.
We talk about his motion capture lab, where a person’s exact location and micro-movements can be detected while they hear different kinds of music, and how the researchers can understand what moves them.
Alexander shares insights about the Norwegian Championship of Stand Still, where until now, 1000s of people have participated, and the winner is the person with the lowest average velocity on standing the stillest over some time.
Alexander explains the interplay of body and mind and reveals some secrets on how to move people, for example, on the dance floor or to calm them down. It all has to do with our bpm, the average heartbeat of about 60 beats a minute.
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Vogt, Yngve; Krauss, Stefan Johannes Karl; Mossige, Joachim; Dysthe, Dag Kristian; Angheluta, Luiza & Jensenius, Alexander Refsum
(2023).
Bereder grunnen for kunstige organer.
[Fagblad].
Apollon.
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Jensenius, Alexander Refsum
(2023).
Conceptualizing Musical Instruments.
Vis sammendrag
What is an instrument in our increasingly electrified world? In this talk I will present a set of theoretical building blocks from my recent book "Sound Actions". At the core of the argument is the observation that the introduction of new music technologies has led to an increased separation between action and sound in musical performance. This has happened gradually, with pianos and organs being important early examples of instruments that introduced mechanical components between the performer and resonating objects. Today's network-based instruments represent an extreme case of a spatiotemporal dislocation between action and sound. They challenge our ideas of what an instrument can be, who can perform on them, and how they should be analyzed. In the lecture I will explain how we can use the concepts of action-sound couplings and mappings to structure our thinking about such instruments.
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Jensenius, Alexander Refsum
(2023).
Oppsummering av arbeidet med opphavsrett og lisenser i QualiFAIR.
Vis sammendrag
Forskere ofte stiller spørsmål på hvordan de skal håndtere opphavsrett når det samler inn data. Hvem eier data? Hvem har rettigheter og hvilke rettigheter har man som prosjektleder eller prosjektdeltaker? Hvilke lisenser skal man velge når man vil dele ulikt materiale slikt som artikler, datasett, kildekode, bilder, lyd- og videoopptak? Hvordan kan man bruke andres materiale som ikke har spesifikke lisenser? Hvordan kan UiO legge bedre til rette for at studenter og ansatte får et bevisst forhold til opphavsrett?
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Jensenius, Alexander Refsum
(2023).
Conceptualizing Musical Instruments.
Vis sammendrag
What is an instrument in our increasingly electrified world? In this talk I will present a set of theoretical building blocks from my forthcoming book on "musicking in an electronic world". At the core of the argument is the observation that the introduction of new music technologies has led to an increased separation between action and sound in musical performance. This has happened gradually, with pianos and organs being important early examples of instruments that introduced mechanical components between the performer and resonating objects. Today's network-based instruments represent an extreme case of a spatiotemporal dislocation between action and sound. They challenge our ideas of what an instrument can be, who can perform on them, and how they should be analyzed. In the lecture I will explain how we can use the concepts of action-sound couplings and mappings to structure our thinking about such instruments. This will be used at the heart of a new organology that embraces the qualities of both acoustic and electroacoustic instruments.
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Jensenius, Alexander Refsum
(2023).
Explorations of human micromotion through standing still.
Vis sammendrag
Throughout 2023, I will stand still for ten minutes around noon every day, in a different room each day. The aim is to collect data about my micromotion and compare it to the qualities of the environment. This project follows a decade-long exploration of human micromotion from both artistic and scientific perspectives. In the talk, I will present results from the annual Norwegian Championships of Standstill, where we have studied the influence of music on people's micromotion. I will also talk about how micromotion can be used in interactive music systems, allowing for conscious and unconscious control of musical sounds.
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Jensenius, Alexander Refsum
(2023).
Wishful thinking about CVs: Perspectives from a researcher.
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Jensenius, Alexander Refsum
(2023).
Sound Actions: An Embodied approach to a Digital Organology.
Vis sammendrag
What is an instrument in our increasingly electrified world? In this talk I will present a set of theoretical building blocks from my forthcoming book on "musicking in an electronic world". At the core of the argument is the observation that the introduction of new music technologies has led to an increased separation between action and sound in musical performance. This has happened gradually, with pianos and organs being important early examples of instruments that introduced mechanical components between the performer and resonating objects. Today's network-based instruments represent an extreme case of a spatiotemporal dislocation between action and sound. They challenge our ideas of what an instrument can be, who can perform on them, and how they should be analyzed. In the lecture I will explain how we can use the concepts of action-sound couplings and mappings to structure our thinking about such instruments. This will be used at the heart of a new organology that embraces the qualities of both acoustic and electroacoustic instruments.
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Jensenius, Alexander Refsum
(2023).
Rhythmic Data Science.
Vis sammendrag
Rhythm is everywhere, from how we walk, talk, dance and play to telling stories about our past and even predicting the future. Rhythm is key to how we interact with our world. Our heartbeat, nervous system, and other bodily cycles work through rhythm. As such, rhythm is a crucial aspect of human action and perception, and it is in complex interaction with the world's cultural, biological and mechanical rhythms. At RITMO, they research rhythmic phenomena and their complex relationships with the rhythms of human bodies and brains. In the talk, Alexander will present examples of how they record, synchronize, and analyze data of complex, rhythmic human behavior, such as real-world concerts.
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Jensenius, Alexander Refsum
(2023).
CV-modul som grunnlag for NOR-CAM.
Vis sammendrag
Vurdering av forskning er på dagsorden som aldri før. NIFU inviterer derfor til åpent seminar om helhetlig vurdering av forskere og forskning. Bakteppet er den nye europeiske avtalen om evaluering av forskning og den nye norske veilederen for karrierevurdering av forskere. Seminaret arrangeres i samarbeid mellom NIFU (R-Quest), UHR og Det nasjonale publiseringsutvalget.
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Jensenius, Alexander Refsum
(2023).
Exploring large datasets of human, music-related standstill.
Vis sammendrag
Throughout 2023, I will stand still for ten minutes around noon every day, in a different room each day. The aim is to collect data about my micromotion and compare it to the qualities of the environment. This project follows a decade-long exploration of human micromotion from both artistic and scientific perspectives. In the talk, I will present results from the annual Norwegian Championships of Standstill, where we have studied the influence of music on people's micromotion. I will also talk about how micromotion can be used in interactive music systems, allowing for conscious and unconscious control of musical sounds.
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Jensenius, Alexander Refsum & Rosenberg, Ingvild
(2023).
Unik forskningskonsert.
[Radio].
NRK P1.
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Jensenius, Alexander Refsum & Burnim, Kayla
(2023).
Forskere inntok Konserthuset.
[Avis].
Stavanger Aftenblad.
Vis sammendrag
Hundrevis av elever kom for å høre på Stavanger symfoniorkester. Mens orkesteret spilte, var musikerne, dirigenten og publikum del av et unikt forskningsprosjekt.
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Jensenius, Alexander Refsum & Poutaraud, Joachim
(2023).
Video Visualization.
Vis sammendrag
This workshop is targeted at students and researchers working with video recordings. Even though the workshop will be based on quantitative tools, the aim is to provide solutions for qualitative research. This includes visualization techniques such as motion videos, motion history images, and motiongrams, which, in different ways, allow for looking at video recordings from different temporal and spatial perspectives. It also includes basic computer vision analysis modules, such as extracting quantity and centroid of motion, and using such features in analysis.
The participants will learn to use the Musical Gestures Toolbox for Python, a collection of high-level modules for easily generating all of the above-mentioned visualizations and analyses. This toolbox was initially developed for analyzing music-related body motion but is equally helpful for other disciplines working with video recordings of humans, such as linguistics, psychology, medicine, and educational sciences.
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Jensenius, Alexander Refsum & Lome, Ragnhild
(2022).
Mer mangfold innenfor humaniora?
[Fagblad].
Forskningspolitikk.
Vis sammendrag
En ny kunnskapspolitisk prosess er i gang, om hvordan akademiske karrierer skal vurderes. Hvordan påvirker det humaniora i Norge?
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Jensenius, Alexander Refsum
(2022).
Exploring music performance and perception through motion capture.
Vis sammendrag
This talk will present different approaches to capturing human bodily activity. Motion capture can be performed with sensor-based and camera-based systems, each of which has benefits and limitations. Sensor-based systems are flexible and scalable and can easily be used outside laboratory environments. They are good at tracking relative motion and rotation information but less suitable for tracking position. Camera-based systems come in many flavors and can be used with and without markers. They excel at tracking positions but are prone to reflections and environmental noise. As a consequence, camera-based motion capture systems are better suited for laboratory settings. I will discuss my twenty-year-long experience using different motion capture systems to study music-related body motion. This includes research on musicians, including rehearsal techniques and performance strategies. Such studies push the limits of the technology when it comes to precision and accuracy. It is particularly challenging when using motion capture equipment in real-world concert settings. At the University of Oslo, we have successfully captured the motion of both solo and ensemble performances and are currently trying to scale up to a full orchestra. We are also carrying out motion capture of perceivers, audience members in concerts, dancers, and other people moving to music. Through the Norwegian Championship of Standstill, we have delved into human micromotion, the tiniest actions we can perform and perceive. At this level, motion capture can detect physiological signals, such as breathing and heart rate. Data from such studies are interesting scientifically and have also been used in artistic practice. Finally, I will give examples of how real-time motion capture can be used in various creative applications, including "inverse" sonic interaction.
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Remache-Vinueza, Byron; Trujillo-León, Andrés; Clim, Maria-Alena; Sarmiento-Ortiz, Fabián; Topon-Visarrea, Liliana & Jensenius, Alexander Refsum
[Vis alle 7 forfattere av denne artikkelen]
(2022).
Mapping Monophonic MIDI Tracks to Vibrotactile Stimuli Using Tactile Illusions.
Vis sammendrag
In this project, we propose an algorithm to convert musical features and structures extracted from monophonic MIDI files to tactile illusions. Mapping music to vibrotactile stimuli is a challenging process since the perceptible frequency range of the skin is lower than that of the auditory system, which may cause the loss of some musical features. Moreover, current proposed models do not warrant the correspondence between the emotional response to music and the vibrotactile version of it. We propose to use tactile illusions as an additional resource to convey more meaningful vibrotactile stimuli. Tactile illusions enable us to add dynamics to vibrotactile stimuli in the form of movement, changes of direction, and localization. The suggested algorithm converts monophonic MIDI files into arrangements of two tactile illusions: “phantom motion” and “funneling”. The validation of the rendered material consisted of presenting the audio rendered from MIDI files to participants and then adding the vibrotactile component to it. The arrangement of tactile illusions was also evaluated alone. Results suggest that the arrangement of tactile illusions evokes more positive emotions than negative ones. This arrangement was also perceived as more agreeable and stimulating than the original audio. Although musical features such as rhythm, tempo, and melody were mostly recognized in the arrangement of tactile illusions, it provoked a different emotional response from that of the original audio.
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Jensenius, Alexander Refsum
(2022).
Erfaringer med å lage 3xMOOC.
Vis sammendrag
I denne presentasjonen vil jeg presentere hvordan vi gjennom årene har utviklet tre komplette nettkurs ved Universitetet i Oslo: Music Moves (2016), Motion Capture (2022) og Pupillometry (2023). Fokuset vil ligge på muligheter og utfordringer i video i utdanningssammenheng.
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Jensenius, Alexander Refsum
(2022).
RITMO and Interdisciplinarity.
Vis sammendrag
In this presentation I will discuss how we have been developing an interdisciplinary research centre, in which researchers from the arts and humanities and the social and natural sciences.
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Jensenius, Alexander Refsum
(2022).
Kunstfag og åpen forskning.
Vis sammendrag
Hvilke dilemmaer oppstår når forskningsdata og resultater skal deles og gjenbrukes? Og hvilke muligheter medfører mer åpenhet og økt deling av data for fag som eksempelvis musikk, visuell kunst, film, scenekunst og design?
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Jensenius, Alexander Refsum
(2022).
Experiencing the world through sound actions.
Vis sammendrag
This talk will reflect on my year-long project recording a daily "sound action". These are multimodal entities consisting of body motion and its resultant sound. When we only see a sound action, we can imagine its sound. If we only hear a sound action, we can imagine the body motion and objects involved in the interaction. Sound actions are ubiquitous in everyday life yet rarely discussed and reflected upon. My attempts at analyzing sound actions show some of the complexity involved in making sense of actions, reactions, and interactions with the world. This complexity can also inspire creative usage. I will present examples of meaningless and cognitively conflicting sound actions in the talk.
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Jensenius, Alexander Refsum
(2022).
Alternatives to journal-based metrics in research assessment.
Vis sammendrag
Science Europe invites institutional leaders, researchers at all stages of their careers, and experts from the field to join its 18 and 19 October 2022 conference on Open Science to discuss two key questions: (1) Is Open Science ready to become the norm in research? (2) How do we ensure this becomes an equitable transition? To find answers to these questions, the conference will provide a comprehensive overview of practical and policy initiatives, research assessment reforms, and financial measures that support the transition to Open Science. We will also look forward to new and emerging trends.
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Jensenius, Alexander Refsum
(2022).
Publish or Perish? Researcher assessment is about to change.
Vis sammendrag
In July 2022, the European Commission launched an Agreement On Reforming Research Assessment. After years of talking, there is significant momentum for changing how researchers are assessed. In this talk, I will present some work leading up to the new agreement and how Universities Norway took a lead when developing the Norwegian Career Assessment Matrix (NOR-CAM). The core idea is that academics need to get recognition for a broader range of activities. This is important for transitioning to more open research practices and diverse career paths within and outside academia.
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Jensenius, Alexander Refsum
(2022).
Open music research between art and science.
Vis sammendrag
Many music researchers are turning towards studying music performance and perception in real-world settings. Collecting data in a concert situation is non-trivial, and FAIRifying the data is even more challenging. In this talk, I will discuss some challenges with handling privacy and copyright matters in music research. I will also discuss some benefits of working towards more open music research.
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Jensenius, Alexander Refsum
(2022).
NOR-CAM - en introduksjon.
Vis sammendrag
A working group appointed by Universities Norway (UHR) was mandated to recommend guiding principles for the assessment and evaluation of research(ers) in light of the transition to Open Science. This working group proposed a more flexible and holistic framework for recognition and rewards in academic research assessment. The ambition has been to develop a guide that adopts three core principles for assessment: more transparency, greater breadth, and comprehensive assessments as opposed to the one-sided use of indicators.
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Jensenius, Alexander Refsum
(2022).
From ideas to reality: interdisciplinary collaborations.
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Upham, Finn; Memis, Ahmet Emin; Hansen, Niels Chr.; Rosas, Fernando E.; Clim, Maria-Alena & Jensenius, Alexander Refsum
(2022).
Participatory applause: Interactions of audience members clapping at the end of a classical music concert.
Vis sammendrag
Participatory applause: Interactions of audience members clapping at the end of a classical music concert
According to musicological studies of audience culture, applause is the most overt form of participation allowed to the collections of individuals attending classical music concerts (Brandl-Risi, 2011; Small, 1998; Tröndle, 2020). The final round of applause can exhibit many interesting dynamics related to their collective enthusiasm for the performance (Lupyan & Rifkin, 2003), the local applause culture, and what is on stage during the clapping.
Quantitative empirical study of group clapping behaviours has principally depended on participants clapping on request in laboratory settings or A/V recordings from concerts (Neda, 2000) and presentations (Mann et al., 2013). To study the coordination involved in this collective behaviour, we need accurate measurements of individuals clapping voluntarily in a real concert setting.
To describe how the appreciative audience members adjust their clapping to each other and the action on stage during the final round of applause, demonstrating their participation at a concert’s end.
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After the Danish String Quartet (DSQ) performed their last piece at the Music Lab Copenhagen Concert, the audience clapped continuously for nearly two minutes. During that time, the musicians stood and bowed, had scientific instruments removed from their bodies, left the stage, returned to bow again, and finally left the stage for good. The clapping action of individual participants in this concert experiment was captured by a mobile phone on their chests, and these recordings show how individuals’ clapping contributed to the collective effect shared with the musicians.
Through the final applause interval, 70 devices captured clear clap sequences, representing over half of the audience at this chamber performance. In some ways, their applause followed expected patterns for a concert audience. They began to applaud over a very short time interval (Mann et al., 2013), more than half starting within less than a second of each other. After 20 s of independent clapping at rates from under 120 BMP to over 200 BPM, the participants shifted to clapping together on a shared beat, a practice that is common for Danish audiences. This group maintained synchrony for over a minute while steadily accelerating from around 158 BMP to 176 BMP, an expected consequence of mutual adaptation during group clapping (Thomson et al., 2018). The coordinated action was strongest while the musicians were on the stage but a subset of independent clapping broke out while the audience waited for the performers to return for their final round of bows.
Participants’ claps were evaluated from two perspectives: the alignment of claps, reflecting the dominant shift from independence to coordination, and the distribution of participants’ clapping rates over time. Despite some measurement challenges, the shift from independent to coordinate clapping emerges strongly from participants’ movements, with the median rate of clapping slowing until a dominant beat takes hold. Individuals’ clap sequences confirm that the independent clapping at the start of the applause is a result of individual participants clapping isochronously at their own rate, separate in rate and phase from their neighbours in the hall. When the audience claps together, they are voluntarily adjusting to the dominant rate and phase of the people in the hall, with little change in the quality of their isochronous clapping action. Drift in the synchronised clapping rate reflects mutual attentiveness while variation in the number of participants contributing to the coordinated claps suggests differences in applause strategy. Many participants opted to coordinate with their peers while some seemed to prioritise reacting to the musicians.
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Kwak, Dongho; Krzyzaniak, Michael Joseph; Danielsen, Anne & Jensenius, Alexander Refsum
(2022).
A mini acoustic chamber for small-scale sound experiments.
Vis sammendrag
This paper describes the design and construction of a mini acoustic chamber using low-cost materials. The primary purpose is to provide an acoustically treated environment for small-scale sound measurements and experiments using ≤ 10-inch speakers. Testing with different types of speakers showed frequency responses of < 10 dB peak-to-peak (except the ”boxiness” range below 900 Hz), and the acoustic insulation (soundproofing) of the chamber is highly efficient (approximately 20 dB SPL in reduction). Therefore, it provides a significant advantage in conducting experiments requiring a small room with consistent frequency response and preventing unwanted noise and hearing damage. Additionally, using a cost-effective and compact acoustic chamber gives flexibility when characterizing a small-scale setup and sound stimuli used in experiments.
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Lesteberg, Mari & Jensenius, Alexander Refsum
(2022).
MICRO and MACRO - Developing New Accessible Musicking Technologies.
Vis sammendrag
This paper describes the development of two musical instrument prototypes developed to explore how non-haptic music technologies can be accessed from a web browser and how they can offer accessibility for people with low fine motor skills. Two approaches to browser-based motion capture were developed and tested during an iterative design process. This was followed by observational studies of two user groups: one with low fine motor skills and one with normal motor skills. Contrary to our expectations, we found that avoiding the use of buttons and mice did not make the apps more accessible for the participants with low fine motor skills. Furthermore, motion speed was considered more important for people with low motor skills than the size of the control action. The most important finding is that browser-based musical instruments using sensor-based and video-based motion tracking are not only feasible but allow for reaching much larger groups of people than previously possible. This may ultimately lead to both more personalized and accessible musical experiences.
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Jensenius, Alexander Refsum; Furmyr, Frida; Poutaraud, Joachim; Widmer, Marcus & Laczko, Balint
(2022).
The Musical Gestures Toolbox for Python.
Vis sammendrag
The Musical Gestures Toolbox for Python is a collection of tools for video visualization and video analysis.
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Swarbrick, Dana; Upham, Finn; Erdem, Cagri; Jensenius, Alexander Refsum & Vuoskoski, Jonna Katariina
(2022).
Measuring Virtual Audiences with The MusicLab App: Proof of Concept.
Vis sammendrag
We present a proof of concept by using the mobile application MusicLab to measure motion during a livestreamed concert and examining its relation to musical features. With the MusicLab App, participants’ own smartphones’ inertial measurement unit (IMU) sensors can be leveraged to record their motion and their subjective experiences collected through survey responses. The MusicLab Lock-down Rave was an Algorave (live-coded dance music) livestreamed concert featuring prolific performers Renick Bell and Khoparzi. They livestreamed for an international audience who wore their smartphones with the MusicLab App while they listened/danced to the performances. From their acceleration, we computed quantity of motion and compared it to musical features that have previously been associated with music-related motion, namely pulse clarity and low and high spectral flux. By encountering challenges and implementing improvements, the MusicLab App has become a useful tool for researching music-related motion.
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Karbasi, Seyed Mojtaba; Jensenius, Alexander Refsum; Godøy, Rolf Inge & Tørresen, Jim
(2022).
A Robotic Drummer with a Flexible Joint: the Effect of Passive Impedance on Drumming.
Vis sammendrag
Intelligent robots aimed for performing music and playing musical instruments have been developed in recent years. With the advancements in artificial intelligence and robotic systems, new capabilities have been explored in this field. One major aspect of musical robots that can lead to the emergence of creative results is the ability to learn skills autonomously. To make it feasible, it is important to make the robot utilize its maximum potential and mechanical capabilities to play a musical instrument. Furthermore, the robot needs to find the musical possibilities based on the physical properties of the instrument to provide satisfying results. In this work, we introduce a drum robot with certain mechanical specifications and analyze the capabilities of the robot according to the drumming sound results of the robot. The robot has two degrees of freedom, actuated by one quasi direct-drive servo motor. The gripper of the robot features a flexible joint with passive springs which adds complexity to the movements of the drumstick. In a basic experiment, we have looked at the drum roll performance by the robot while changing a few control variables such as frequency and amplitude of the motion. Both single-stroke and double-stroke drum rolls can be performed by the robot by changing the control variables. The effect of the flexible gripper on the drumming results of the robot is the main focus of this study. Additionally, we have divided the control space according to the type of drum rolls. The results of this experiment lay the groundwork for developing an intelligent algorithm for the robot to learn musical patterns by interacting with the drum.
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al Outa, Amani; Knævelsrud, Helene; Laczko, Balint & Jensenius, Alexander Refsum
(2022).
Winner of RRI-inspired transdisciplinary side quest call.
[Internett].
Centre for Digital Life Norway.
Vis sammendrag
Centre for Digital Life Norway (DLN) is excited to congratulate the team behind the project “The autophagic symphony – Unveiling the final rhythm” as winner of DLN’s RRI-inspired transdisciplinary side quest call.
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Jensenius, Alexander Refsum & Platou, Jeanette
(2022).
Kan kunstig intelligens være kreativ?
[Radio].
NRK P2 Arena.
Vis sammendrag
Hva er AI, eller kunstig intelligens, som vi kaller det på norsk. I Arena i dag ser vi på hvor kunstig intelligensk blir brukt, og hva det funker i. Kan vi få en data til å skrive poesi, og hva med musikken og kunsten?
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Jensenius, Alexander Refsum & Ashley, Kevin
(2022).
FAIR in Higher Education.
Vis sammendrag
Between January 25th and 27th, FAIRsFAIR partners and stakeholders will meet for a series of concluding meetings to deep-dive into the results of FAIRsFAIR. We’ll analyse the impact that we managed to have on the European Research Community. We'll go once more through the tools, guidelines and best practices that we have produced and delivered to researchers, data stewards, decision makers and funders towards a better, more structured approach towards FAIR data management. We’ll take the recommendations we produced and the lessons we learnt and leave them as a legacy for future activities to come.
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Jensenius, Alexander Refsum & Fasciani, Stefano
(2021).
University of Oslo - RITMO Centre for Interdisciplinary Studies in Rhythm, Time and Motion.
Proceedings of the SMC Conferences.
ISSN 2518-3672.
2021-.
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Funderud, Ingrid; Danielsen, Anne; Endestad, Tor; Jensenius, Alexander Refsum; Leske, Sabine Liliana & Solbakk, Anne-Kristin
(2021).
Improving working memory in patents with epilepsy by rhythmic sounds.
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Krzyzaniak, Michael Joseph; Gerry, Jennifer; Kwak, Dongho; Erdem, Cagri; Lan, Qichao & Glette, Kyrre
(2021).
Fibres Out of Line.
Vis sammendrag
Fibres Out of Line is an interactive art installation and performance for the 2021 Rhythm Perception and Production Workshop (RPPW). Visitors can watch the performance, and subsequently interact with the installation, all remotely via Zoom.
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Lan, Qichao & Jensenius, Alexander Refsum
(2021).
Collaborative Live Coding with Glicol Music Programming Language.
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Lan, Qichao & Jensenius, Alexander Refsum
(2021).
Glicol: A Graph-oriented Live Coding Language Developed with Rust, WebAssembly and AudioWorklet.
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Bishop, Laura; Gonzalez Sanchez, Victor Evaristo; Laeng, Bruno; Jensenius, Alexander Refsum & Høffding, Simon
(2021).
Social context affects head motion and gaze in string quartet rehearsal and concert performance.
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Jensenius, Alexander Refsum
(2021).
Hva er egentlig et musikkinstrument?
Vis sammendrag
Et piano er et instrument. Og en fiolin. Men hva med stemmen? Eller en gaffel? Eller en mobiltelefon? Forelesningen vil diskutere gamle og nye musikkinstrumenter og hvordan ny teknologi er med på å endre måten vi lager og opplever musikk.
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Jensenius, Alexander Refsum
(2021).
Åpen Forskningspraksis – i praksis?
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Vi er på vei inn i et nytt paradigme der åpenhet vil være en naturlig del av hvordan vi forsker. Åpenhet forventes i økende grad gjennom hele forskningsprosessen fra hvordan forskningen planlegges og gjennomføres, til hvordan data og resultater lagres og deles og til hvordan vi samarbeider, forskere imellom og med resten av samfunnet. Åpenhet påvirker forskere, forskningsinstitusjonene, finansiører og de som bruke forskningen.
Målet med konferansen var å stoppe opp og diskutere hvordan de ulike prosessene i arbeidet mot åpen forskning virker (eller ikke virker) sammen. Hvordan ser dette ut fra forskernes ståsted og hvordan henger politikken sammen med praksis? Er de ulike delene av sektoren rigget for endringene som er på vei og hvordan er den overordnede politikken, nasjonalt og internasjonalt koblet til endringer i forskernes hverdag?
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Jensenius, Alexander Refsum
(2021).
Open Research as Communication Strategy.
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Laczko, Balint & Jensenius, Alexander Refsum
(2021).
Reflections on the Development of the Musical Gestures Toolbox for Python.
Vis sammendrag
The paper presents the Musical Gestures Toolbox (MGT) for Python, a collection of modules targeted at researchers working with video recordings. The toolbox includes video visualization techniques such as creating motion videos, motion history images, and motiongrams. These visualizations allow for studying video recordings from different temporal and spatial perspectives. The toolbox also includes basic computer vision methods, and it is designed to integrate well with audio analysis toolboxes. The MGT was initially developed to analyze music-related body motion (of musicians, dancers, and perceivers) but is equally helpful for other disciplines working with video recordings of humans, such as linguistics, pedagogy, psychology, and medicine.
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Arvola, Jakob & Jensenius, Alexander Refsum
(2021).
Kunstig intelligens komponerer Beethoven.
[Radio].
NRK P2.
Vis sammendrag
Før Ludwig van Beethoven døde i 1827, begynte han å arbeide på en symfoni nummer 10. Den ble aldri ferdig, men nå, nesten 200 år etter, har musikken blitt fullført ved hjelp av kunstig intelligens.
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Swarbrick, Dana; Upham, Finn; Erdem, Cagri; Burnim, Kayla & Jensenius, Alexander Refsum
(2021).
The MusicLab App – Exploring the usage of mobile accelerometry to measure audience movement and respiration.
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Swarbrick, Dana; Upham, Finn; Erdem, Cagri; Burnim, Kayla & Jensenius, Alexander Refsum
(2021).
MusicLab Algorave – An exploratory study examining the usage of mobile accelerometry to measure movements of a virtual concert audience.
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Monstad, Lars & Jensenius, Alexander Refsum
(2021).
Kan kunstig intelligens erstatte artisten ARY?
[Internett].
Kreativt forum.
Vis sammendrag
Kan kunstig intelligens lage låter for artistene våre? Forskningsrådet ville se hvor bra musikk kunstig intelligens kan lage, og fikk Ary med på et eksperiment.
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Jenssen, Ariadne Loinsworth; Monstad, Lars; Gonzalez Munoz, Sofia; Fasciani, Stefano & Jensenius, Alexander Refsum
(2021).
Kan kunstig intelligens erstatte en artist?
Vis sammendrag
Årets tema for Forskningsdagene handler om fred og konflikt, og en pågående kamp er menneskene mot maskinen. Jobber har jo allerede blitt erstattet av roboter, betyr det at våre favorittartister nå står for tur?
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Jenssen, Ariadne Loinsworth; Monstad, Lars & Jensenius, Alexander Refsum
(2021).
Kunstig intelligens lager musikk for ARY.
[Internett].
Forskningsdagene.
Vis sammendrag
Mange holder fast ved at kunstneriske utrykk aldri kan bli erstattet av datamaskiner og algoritmer. Men stemmer det? Hvor god er egentlig kunstig intelligens til å lage musikk?
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Carlsen, Toril; Einarsson, Anna Elisabet; Jensenius, Alexander Refsum & Norderval, Kristin
(2021).
Contemporary Vocal Arts Training: Renewing the opera form through new pedagogical practices that expand the role of the singer.
Vis sammendrag
Avdeling Operahøgskolen ønsker å arrangere en tredagers konferanse på KHiO 27.-29. august 2021, med fokus på operapedagogikk og moderne stemmebruk. Målet med konferansen er å undersøke den pedagogiske praksisen som trengs for å trene operasangere mot dagens krav til nye operaproduksjoner og utvide den kreative rolle til oeprasangere. Improvisasjon, samarbeid og bruk av teknologi for å fosnye opera som kunstform vil være sentrale emner. UiO/ RITMO og foreningen VOXLAB står som samarbeidspartnere.
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Jensenius, Alexander Refsum
(2021).
Visibility for researchers on university web pages.
Vis sammendrag
Academics need to be visible online. If you don’t publish and disseminate your research, it won’t have an impact. So it is in our own interest to have up-to-date personal pages with information about what we do. I would argue that it is also in the interest of universities that their employee’s personal pages are up-to-date and look good.
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Masu, Raul; Melbye, Adam Pultz; Sullivan, John & Jensenius, Alexander Refsum
(2021).
NIME Eco Wiki: A Crash Course.
Vis sammendrag
In this workshop, hosted by the three NIME environmental officers, participants will be introduced to the NIME Eco Wiki, a repository for addressing environmental and sustainability issues within the NIME community. During the workshop, the participants will discuss how practices on the communal as well as the individual level may become more sustainable and they will create new additions and ideas for the Wiki.
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Jensenius, Alexander Refsum
(2021).
NOR-CAM - En veileder for vurdering i akademiske karriereløp.
Vis sammendrag
UHRs arbeidsgruppe for åpen evaluering har siden 2019 jobbet med en veileder for vurdering i akademiske karriereløp. Veilederen er nå ferdig, og arbeidsgruppen foreslår et mer fleksibelt og helhetlig rammeverk for arbeidet med vurdering i akademiske karriereløp. Ambisjonen har vært å utvikle en veileder der mer åpenhet, større bredde i vurderingene, og med helhetlige vurderinger som motsats til ensidig bruk av indikatorer står sentralt.
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Jensenius, Alexander Refsum
(2021).
NOR-CAM - A framework for recognition and rewards in academic careers.
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A working group appointed by Universities Norway (UHR) was mandated to recommend guiding principles for the assessment and evaluation of research(ers) in light of the transition to Open Science. This working group proposes a more flexible and holistic framework for recognition and rewards in academic research assessment. The ambition has been to develop a guide that adopts three core principles for assessment: more transparency, greater breadth, and comprehensive assessments as opposed to one-sided use of indicators.
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Masu, Raul; Melbye, Adam Pultz; Sullivan, John & Jensenius, Alexander Refsum
(2021).
NIME and the Environment: Toward a More Sustainable NIME Practice.
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This paper addresses environmental issues around NIME research and practice. We discuss the formulation of an environmental statement for the conference as well as the initiation of a NIME Eco Wiki containing information on environmental concerns related to the creation of new musical instruments. We outline a number of these concerns and, by systematically reviewing the proceedings of all previous NIME conferences, identify a general lack of reflection on the environmental impact of the research undertaken. Finally, we propose a framework for addressing the making, testing, using, and disposal of NIMEs in the hope that sustainability may become a central concern to researchers.
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Jensenius, Alexander Refsum
(2021).
Hvordan bygge og videreutvikle en internasjonal, interdisiplinær forskningsgruppe?
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Karbasi, Seyed Mojtaba; Godøy, Rolf Inge; Jensenius, Alexander Refsum & Tørresen, Jim
(2021).
A Learning Method for Stiffness Control of a Drum Robot for Rebounding Double Strokes.
Vis sammendrag
In robot drumming, performing double stroke rolls is a key ability. Human drummers learn to play double strokes by just trying it several times. For performing it, a model needs to be learned to provide anticipatory commands during drumming. Joint stiffness plays a key role in rebounding double stroke task and should be considered in the model. We have introduced an interactive learning method for a drum robot to learn joint stiffness for rebounding double stroke task. The model is simulated for a 2-DoF robotic arm. The algorithm is simulated with 3 different drum kits to show the robustness of the learning approach. The simulation results also show significant compatibility with human performance results. In addition, the refined learning algorithm adjusts the stroke timing which is important for producing proper rhythms.
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Jensenius, Alexander Refsum & Holm, Hege
(2021).
Hva får oss ut på dansegulvet?
[Radio].
NRK P1.
Vis sammendrag
Hva får oss ut på dansegulvet? Det er forsket på hva som skal til for at vi beveger oss til musikk. Det er helt spesielle rytmer som får kroppen vår til å bevege seg, enten vi vil eller ei. Professor med bakgrunn både fra musikk, fysikk og matematikk forklarer.
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Lan, Qichao & Jensenius, Alexander Refsum
(2020).
Embodied Pattern Writing in Live Coding.
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Jensenius, Alexander Refsum & Danielsen, Anne
(2020).
UiOs nettsider er en viktig forskningsinfrastruktur.
Uniforum.
ISSN 1891-5825.
Vis sammendrag
Det er underlig at UiO så aktivt går inn for å slette tilgjengelig informasjon om vår egen kultur og historie. Vi er enig i at det er behov for å rydde opp i nettsidene, men mener at fokuset bør ligge på rydding og kvalitetssikring fremfor sletting, skriver Alexander Refsum Jensenius og Anne Danielsen i RITMO.
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Jensenius, Alexander Refsum
(2020).
Some Challenges of Citizen Science for Universities.
Vis sammendrag
The potential of Citizen Science is high on the agenda in the discussion on the future of academic research. The European Commission’s Communication “A new ERA for Research and Innovation”, published in September 2020, states that “[...] the engagement of citizens, local communities and civil society will [help] achieve greater social impact and increased trust in science.” Citizens can contribute in diverse ways, ranging from data collection over data analysis to co-designing projects, and thereby bring academic research and its outcomes closer to society.
However, Citizen Science also accentuates ethical and legal questions about ownership of the research process and outcomes, and poses challenges in terms of safeguarding research quality. Addressing these challenges and using the opportunities of Citizen Science will require universities to take the lead and consider the place of Citizen Science within their institutional strategies, as well as the support they offer to research staff.
Engaging in inclusive and transparent science, Citizen Science and Open Science are becoming increasingly intertwined. Currently, Citizen Science is described by the European Commission as “both an aim and enabler of Open Science”.
This joint workshop will discuss themes around institutional support for Citizen Science and offers an opportunity to transfer and share knowledge. The aim is to exchange experiences, lessons learnt, and explore common challenges. To support Citizen Science, the online workshop will discuss tools, guidelines and good practices from Open Science experiences as well. Participating universities will have the opportunity to share expertise, coordinate efforts and exchange advice on services, tools and legal and ethical issues.
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Gonzalez, Victor; Zelechowska, Agata & Jensenius, Alexander Refsum
(2020).
MICRO Motion capture data from groups of participants standing still to auditory stimuli (2015).
Vis sammendrag
This project contains head movement data recorded from groups of participants asked to stand as still as possible and presented with a series of auditory stimuli. Data was collected in units of mm with a Qualisys motion capture system at 100Hz. Data was collected at the University of Oslo on March 12th 2015 from a total of 108 participants. Code to read and process these files has been made publicly available.
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Jensenius, Alexander Refsum & Ingebrethsen, Christian
(2020).
Kan en datamaskin lage den neste megahiten?
[Radio].
NRK P2.
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Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Jensenius, Alexander Refsum
(2020).
MICRO Motion capture data from groups of participants standing still to auditory stimuli (2012).
Vis sammendrag
This dataset comprises head motion observations collected as part of an experiment in which a group of people were asked to stand still for 6 minutes, with the first 3 minutes in silence, followed by 3 minutes with music. Head motion was captured in units of mm at 100Hz using a Qualisys infra-red optical system. The experiment was carried out at the University of Oslo on March 8th 2012 from a total of 113 participants. Code to read and process these files is available. The paper corresponding to the work is Jensenius et al., "The Musical Influence on People's Micromotion when Standing Still in Groups", Proceedings of the 14th Sound and Music Computing Conference (2017).
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Zelechowska, Agata; Gonzalez Sanchez, Victor Evaristo & Jensenius, Alexander Refsum
(2020).
Standstill to the ‘beat’: Differences in involuntary movement
responses to simple and complex rhythms.
Vis sammendrag
Previous studies have shown that movement-inducing properties of music largely depend on the rhythmic complexity of the stimuli. However, little is known about how simple isochronous beat patterns differ from more complex rhythmic structures in their effect on body movement. In this paper we study spontaneous movement of 98 participants instructed to stand as still as possible for 7 minutes while listening to silence and randomised sound excerpts: isochronous drumbeats and complex drum patterns, each at three different tempi (90, 120, 140 BPM). The participants’ head movement was recorded with an optical motion capture system.We found that on average participants moved more during the sound stimuli than in silence, which confirms the results from our previous studies. Moreover, the stimulus with complex drum patterns elicited more movement when compared to the isochronous drum beats. Across different tempi, the participants moved most at 120 BPM for the average of both types of stimuli. For the isochronous drumbeats, however, their movement was highest at 140 BPM. These results can contribute to our understanding of the interplay between rhythmic complexity, tempo and music-induced movement.
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Jensenius, Alexander Refsum; Danielsen, Anne & Edwards, Peter
(2020).
Vi trenger kort og godt mer automagi i Cristin.
Uniforum.
ISSN 1891-5825.
Vis sammendrag
Forskerne bruker utallige arbeidstimer på å legge inn informasjonen. Det er på tide å få den ut igjen! skriver UiO-forskerne Alexander Refsum Jensenius, Anne Danielsen og Peter Edwards.
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Jensenius, Alexander Refsum & Andersson, Bård
(2020).
Umulig å stå stille til musikk
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[Avis].
KulturPlot.
Vis sammendrag
Nå er det bevist: Det finnes en indre danseløve i oss alle. Ny forskning viser dessuten at den musikken som ikke får det til å rykke i dansefoten er norsk.
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Bishop, Laura & Jensenius, Alexander Refsum
(2020).
Reliability of two infrared motion capture systems in a music performance setting.
Vis sammendrag
This paper describes a comparative analysis of tracking quality in two infrared marker-based motion capture systems: one older but high-end (Qualisys, purchased in 2009) and the other newer and mid-range (OptiTrack, purchased in 2019). We recorded performances by a string quartet with both systems simultaneously, using the same frame rate. Our recording set-up included a combination of moving markers (affixed to musicians’ bodies) and stationary markers (affixed to music stands). Higher noise levels were observed in Qualisys recordings of stationary markers than in OptiTrack recordings, as well as a greater spatial range, though OptiTrack recordings had a higher rate of outliers (“spikes” in the signal). In moving markers, increased quantity of motion was associated with increased between-system error rates. Both systems showed minimal within-trial drift but a reduction in recording accuracy and precision over the duration of the experiment. Overall, our results show that the older/high-end system (Qualisys) produced slightly lower-quality recordings than the newer/mid-range system (OptiTrack). We discuss how our findings may inform researchers’ interpretations of motion capture data, particularly when capturing the types of motion that are important for performing music.
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Krzyzaniak, Michael Joseph; Veenstra, Frank; Erdem, Cagri; Glette, Kyrre & Jensenius, Alexander Refsum
(2020).
Interactive Rhythmic Robots.
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Støckert, Robin; Bergsland, Andreas; Fasciani, Stefano & Jensenius, Alexander Refsum
(2020).
Student active learning in a two campus organisation.
Vis sammendrag
Higher education is facing disruptive changes in many fields. Students wants to have the option of learning anywhere, anytime and in any format. Universities need to develop and deliver to future students a complete learning ecosystem. At the same time universities are facing challenges such as growing costs and the pressure to give the students the knowledge, competence, skills and ability to continuously adapt to future job environments. As a consequence, many universities are investigating new ways of collaboration and sharing resources to cater to the demands of students, industry and society. An example of this collaboration is a new joint master between the two largest Universities in Norway: University of Oslo (UiO) and Norwegian University of Science and Technology (NTNU). In this paper, we present the lessons learned from almost two years of teaching and learning in the new joint master's programme, "Music, Communication and Technology" (MCT), between NTNU and UiO. This programme is a run in a two-campus learning space built as a two-way, audio-visual, high-quality, low-latency communication channel between the two campuses, called "The Portal". Moreover, MCT is the subject of research for the SALTO (Student Active Learning in a Two campus Organisation) project, where novel techniques in teaching and learning are explored, such as team-based learning (TBL), flipped classroom, and other forms of student active learning. Educational elements in this master, provides the student with 21st century skills and deliver knowledge within humanities, entrepreneurship and technology. We elaborate on the technical, pedagogical and learning space-related challenges toward delivering teaching and learning in these cross-university settings. The paper concludes with a set of strategies that can be used to improve student active learning in different scenarios.
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Jensenius, Alexander Refsum
(2020).
Video Visualization Strategies at RITMO.
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Jensenius, Alexander Refsum & Svendsen, Njord Vegard
(2020).
Spelelystene.
[Avis].
Khrono.
Vis sammendrag
For somme er ein arbeidsdag utan musikk utenkeleg.
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Krzyzaniak, Michael Joseph; Kwak, Dongho Daniel; Veenstra, Frank; Erdem, Cagri; Wallace, Benedikte & Jensenius, Alexander Refsum
(2020).
Dr. Squiggles rhythmical robots.
Vis sammendrag
Dr. Squiggles is an interactive musical robot that we designed, that plays rhythms by tapping. It listens for tapping produced by humans or other musical robots, and attempts to play along and improvise its own rhythms based on what it hears.
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Fasciani, Stefano; Jensenius, Alexander Refsum; Støckert, Robin & Xambó, Anna
(2020).
The MCT Portal: an infrastructure, a laboratory and a pedagogical tool.
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Lan, Qichao; Cagri, Erdem & Jensenius, Alexander Refsum
(2019).
Performing with QuaverSeries Live Coding Environment.
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Xambo Sedo, Anna; Støckert, Robin; Jensenius, Alexander Refsum & Saue, Sigurd
(2019).
Facilitating Team-Based Programming Learning with Web Audio.
Vis sammendrag
In this paper, we present a course of audio programming using web audio technologies addressed to an interdisciplinary group of master students who are mostly beginners in programming. This course is held in two connected university campuses through a portal space and the students are expected to work in cross-campus teams. The workshop promotes both individual and group work and is based on ideas from science, technology, engineering, arts and mathematics (STEAM), team-based learning and project-based learning. We show the outcomes of this course, discuss the students’ feedback and reflect on the results. We found that it is important to provide individual vs. group work, to use the same code editor for consistent follow-up and to be able to share the screen to solve individual questions. Other aspects inherent to the master (intensity of the courses, coding in a research-oriented program) and to prior knowledge (web technologies) should be reconsidered. We conclude with a wider reflection on the challenges and potentials of using web audio as a programming environment for beginners in STEAM and distance-learning courses.
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Jensenius, Alexander Refsum
(2019).
Musikkteknologi som døråpner til bedre forståelse.
Vis sammendrag
I seminaret vil du få presentert eksempler på hvordan musikkteknologi kan brukes i undervisning, både i små og store grupper. Både akustisk og elektronisk musikkteknologi fungerer godt for å forklare prinsipper også utenfor regulær musikkundervisning. I dette seminaret får du vite hvordan matematikk kan forklares med små synthesizere, fysikk med strengeinstrumenter og kroppskontroll med interaktiv musikk. Dette er prinsipper som kan tas i bruk med enkle virkemidler. Seminaret vil kunne være relevant for deg som ønsker tips til alternative tilnærminger overfor elever som strever med læring.
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Jensenius, Alexander Refsum
(2019).
Experimenting with Open Research Experiments.
Vis sammendrag
Is it possible to do experimental music research completely openly? And what can we gain by opening up the research process from beginning to end? In the talk I will present MusicLab, an open research project at the University of Oslo. The aim is to explore new methods for conducting research, research communication, and education. Each MusicLab event is organized around a public music performance, during which we collect data from both musicians and audience members. Here we explore different types of sensing systems that work in real-world contexts, such as breathing, heartbeat, muscle tension, or motion. The events also contain an edutainment element through panel discussions as well as "data jockeying" in the form of live data analysis. The collected data is made publicly available, and forms the basis for further analysis and publications after the event. Opening up the research process is conceptually, practically, and technologically challenging for everyone involved. The benefit is that it has helped us solve a number of issues when it comes to GDPR and copyright. It has also pushed our research in directions that we previously had never thought about, and helped us communicate this to new users.
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Jensenius, Alexander Refsum & Lieungh, Erik
(2019).
#26 Music Research.
[Radio].
Open Science Talk.
Vis sammendrag
In this episode, we talk about Music Research, and how it is to practice open research within this field.
Our guest is Alexander Jensenius, Associate Professor at the Department of Musicology
- Centre for Interdisciplinary Studies in Rhythm, Time and Motion (IMV) at the University of Oslo. He is also behind MusicLAb, an event-based project where data is collected, during a musical performance, and analyzed on the fly.
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Alarcón Diaz, Ximena; Boddie, Paul; Erdem, Cagri; Aandahl, Eigil; Andersen, Elias Sukken & Dahl, Eirik
[Vis alle 8 forfattere av denne artikkelen]
(2019).
Sensing Place and Presence in an INTIMAL Long-Distance Improvisation.
Vis sammendrag
INTIMAL is an interactive system for relational listening, which integrates physical-virtual interfaces for people to sonically improvise between distant locations. The aim is to embrace two key aspects in the context of human migration: the sense of place and the sense of presence. This paper reflects on the use of INTIMAL in a long-distance improvisation between the cities of Oslo, Barcelona and London in May 2019. This improvisation was performed by nine Colombian migrant women, who had been involved in a research process using the Deep Listening® practice developed by Pauline Oliveros. Here we describe the performance setting and the implementation of the first two interfaces of the system: MEMENTO, an “embodied” navigator of an oral archive of Colombian women’s testimonies of conflict and migration; and RESPIRO, a sonification system that transmits and sonifies live, breathing signals between distant locations. We reflect on how the two interfaces facilitated and challenged the improvisers’ listening experiences and connections.
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Jensenius, Alexander Refsum & Jørgensen, Paul Arvid
(2019).
Kulturstripa: Musikken som beveger.
[Radio].
NRK P2.
Vis sammendrag
Er du av typen som berre må danse når du høyrer ein viss type musikk? Paul Arvid Jørgensen har møtt ein forskar som ser på om vi menneske er fødd med dansefot, og om ein type musikk fører til meir rørsle enn en annan.
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Becker, Artur; Herrebrøden, Henrik; Gonzalez Sanchez, Victor Evaristo; Nymoen, Kristian; Dal Sasso Freitas, Carla Maria & Tørresen, Jim
[Vis alle 7 forfattere av denne artikkelen]
(2019).
Functional Data Analysis of Rowing Technique Using Motion Capture Data.
Vis sammendrag
We present an approach to analyzing the motion capture data ofrowers using bivariate functional principal component analysis(bfPCA). The method has been applied on data from six elite rowersrowing on an ergometer. The analyses of the upper and lower bodycoordination during the rowing cycle revealed significant differences between the rowers, even though the data was normalized toaccount for differences in body dimensions. We make an argumentfor the use of bfPCA and other functional data analysis methods forthe quantitative evaluation and description of technique in sports.
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Sørbø, Solveig Isis; Good, Matthew & Jensenius, Alexander Refsum
(2019).
RITMO + UB = MusicLab.
Vis sammendrag
MusicLab er et samarbeidsprosjekt mellom UB og RITMO og en pilot på åpen forskning ved UiO. Konseptet kombinerer live musikk, live forskning og vitenskapsformidling. Det er mye vi har fått til med MusicLab, men i slikt nybrottsarbeid støter man også på nye typer utfordringer. Hvor langt kan man trekke åpenheten?
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Jensenius, Alexander Refsum
(2019).
Lecture-demo: Music-Related Micromotion.
Vis sammendrag
This presentation will summarize findings from my research into music-related micromotion. This includes the smallest human motion that we can perform and perceive, typically measured at at a scale of millimeters. We have carried out a series of studies of such micromotion, in which people have been asked to try to stand still on the floor, both in silence and with (musical) sound. By measuring their bodily responses with different types of motion tracking and physiological devices we find a number of similarities between people's quantity and quality of motion. This has been the starting point for exploring the use of micromotion in musical practice, what I call 'sonic microinteraction'. This includes standstill performances with interactive sound and light. It also includes several installations with our ensemble of self-playing guitars. These are hybrid instruments, using digital sound-production through acoustically resonating guitars. They are controlled through inverse microinteraction, meaning that you need to focus on standing still to produce any sound. This challenges our traditional understanding of the affordance of musical instruments, and opens for both artistically and scientifically interesting perspectives.
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Jensenius, Alexander Refsum
(2019).
Sound actions: An embodied approach to a digital organology.
Vis sammendrag
What is an instrument in our increasingly electrified world? In this talk I will present a set of theoretical building blocks from my forthcoming book on "musicking in an electronic world". At the core of the argument is the observation that the introduction of new music technologies has led to an increased separation between action and sound in musical performance. This has happened gradually, with pianos and organs being important early examples of instruments that introduced mechanical components between the performer and resonating objects. Today's network-based instruments represent an extreme case of a spatiotemporal dislocation between action and sound. They challenge our ideas of what an instrument can be, who can perform on them, and how they should be analyzed. In the lecture I will explain how we can use the concepts of action-sound couplings and mappings to structure our thinking about such instruments. This will be used at the heart of a new organology that embraces the qualities of both acoustic and electroacoustic instruments.
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Jensenius, Alexander Refsum
(2019).
Sound actions: An embodied approach to a digital organology.
Vis sammendrag
What is an instrument in our increasingly electrified world? In this talk I will present a set of theoretical building blocks from my forthcoming book on "musicking in an electronic world". At the core of the argument is the observation that the introduction of new music technologies has led to an increased separation between action and sound in musical performance. This has happened gradually, with pianos and organs being important early examples of instruments that introduced mechanical components between the performer and resonating objects. Today's network-based instruments represent an extreme case of a spatiotemporal dislocation between action and sound. They challenge our ideas of what an instrument can be, who can perform on them, and how they should be analyzed. In the lecture I will explain how we can use the concepts of action-sound couplings and mappings to structure our thinking about such instruments. This will be used at the heart of a new organology that embraces the qualities of both acoustic and electroacoustic instruments.
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Jensenius, Alexander Refsum
(2019).
Hvordan fremme tverrfaglighet?
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Alarcón Diaz, Ximena & Jensenius, Alexander Refsum
(2019).
"Ellos no están entendiendo nada" ("They are not understanding anything"): Listening to Embodied Memories of Colombian Migrant Women Reflecting on Conflict and Migration.
Vis sammendrag
Exploring the role of the body as an interface that keeps memory of place, INTIMAL physical-virtual “embodied” system, integrates body movement, voice, and an oral archive, as an artistic platform for relational listening (Alarcón, 2019), using networking technologies for telematic sonic improvisatory performances, in the context of geographical migration. INTIMAL has been informed by a case study with nine Colombian migrant
women in Europe, listening to their migrations, and to an oral archive with testimonies of conflict and migration by other Colombian migrant women.1 The first two interfaces created for the system: MEMENTO (a spoken word retrieval system), and RESPIRO (for transmission and sonification of breathing data), have been tested by the research participants in a telematic sonic improvisatory public improvisatory performance between the cities of Oslo, Barcelona, and London. In the performance, proposed as a shared dream, a “complex narrative” (Grishakova & Poulaki, 2019) emerged, for both the improvisers and the audiences. In this paper, we describe the conditions of the narrative environment, and the embodied expressions that
emerged—including body movement, voice, spoken word, and breathing—establishing connections between gendered migration, and Colombian conflict. We reflect on how distributed improvisatory embodied
expression, and relational listening through technological mediations, aids the process of collective remembering (Wertsch, 2001), in a complex context of conflict and migration.
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Jensenius, Alexander Refsum
(2019).
Ett år med MCT-programmet ved IMV.
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Jensenius, Alexander Refsum
(2019).
Music Technology Developments at University of Oslo.
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Gonzalez Sanchez, Victor Evaristo; Herrebrøden, Henrik; Olimstad, Jostein & Jensenius, Alexander Refsum
(2019).
Effects of acoustic pacing on the smoothness of rowing movements.
Vis sammendrag
The influence of acoustic stimuli and feedback in sport has been explored as means of optimizing technique, in particular during training. Interactive and adaptive acoustic systems have been evaluated for rowing, with results showing a significant increase in boat velocity. However, assessment of the effects of acoustic feedback and pacing in the technical aspects of rowing is still scarce. Previous studies on the smoothness of the stroke force profile have shown that smoothness metrics can qualitatively reflect movement coordination. In this study, we quantify and compare hand movement smoothness from rowers performing under three acoustic conditions: silence, verbal instructions, and acoustic pacing.
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Støckert, Robin; Jensenius, Alexander Refsum; Xambo Sedo, Anna & Brandtsegg, Øyvind
(2019).
A case study in learning spaces for physical-virtual two-campus interaction.
Vis sammendrag
Norwegian University of Science and Technology (NTNU) Teaching Excellence is an integrated and
wide-ranging initiative aimed at helping NTNU to achieve its goal to providing education characterized
by quality at a high international level. The initiative consists of a portfolio of development measures,
with the purpose to develop innovative approaches to learning, teaching and assessment.
SALTO (Student Active Learning in a Two campus Organization) is one of the development projects
founded for the period 2018-2020. The project is based on a study where the students are divided into
two campuses. The aim is to develop effective pedagogy with activity at both campuses at the same
time, with particular emphasis on interaction, resource sharing and communication/collaboration. The
project aims to allow students and teachers to explore educational, methodological, and technological
solutions together.
A new joint master's program in "Music, Communication and Technology" (MCT) between NTNU and
University in Oslo (UiO), constitutes the framework for the SALTO project. The common pedagogy,
technology and shared learning space between the two Universities, is hereafter defined as the Portal.
SALTO will utilize the MCT Portal as an arena/living lab to evolve and optimize student active learning
scenarios. In this paper, we elaborate on the issues, challenges and potential with three different
scenarios, which emerged during the first 6 months of the project:
(1) The Opening Ceremony between NTNU and UiO, with a combo of talks and performance.
(2) A live Christmas concert connecting two high schools 500 km apart (Trondheim-Oslo).
(3) An intense cross-university course with a combo of preparations, lectures and hands-on exercises.
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Erdem, Cagri; Schia, Katja Henriksen & Jensenius, Alexander Refsum
(2019).
Vrengt: A Shared Body–Machine Instrument for Music–Dance Performance.
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Jensenius, Alexander Refsum; Schramm, Rodrigo; Coccioli, Lamberto; Mancini, Clara & Lyons, Michael J.
(2019).
Ethics at NIME.
Vis sammendrag
This workshop is intended to discuss how we think about and handle research ethics at NIME conferences. A number of NIME papers involved studies on/with humans. Most of these are on volunteering adults, but there are also examples of studies with children, and with patients. We also see an interest in the community to carry out research on/with animals. NIME’s current ethical guidelines do not take these perspectives into account. The Steering Committee therefore sees the need to develop better and more up-to-date ethical guidelines for the conference. This is to create an increased awareness about the needs for ethical considerations in the community, but also as guidelines for reviewers and conference chairs. NIME is proud of being a very heterogeneous community, covering people working in a large number of different scientific disciplines, artistic practices, as well as R&D in the industry. Needless to say, this breadth of perspectives also means that it is difficult to impose the same guidelines on all studies. NIME researchers also have to abide to a number of different regulations at institutional, regional, national, continental and international levels. The workshop will consist of short introductions to some challenges faced when carrying out research on/with humans and animals, in both scientific and artistic contexts. This will be followed by group-based brainstorming and a final plenary discussion.
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Jensenius, Alexander Refsum; McPherson, Andrew; Xambo Sedo, Anna; Overholt, Dan; Pellerin, Guillaume & Bukvic, Ivica Ico
[Vis alle 8 forfattere av denne artikkelen]
(2019).
Open Research Strategies and Tools in the NIME Community.
Vis sammendrag
This workshop is intended for discussing how we can develop more and better strategies and tools for opening up research processes and results within the NIME community. The development of more openness in research has been in progress for a fairly long time, and has recently received a lot of more political attention through the Plan S initiative, The Declaration on Research Assessment (DORA), EU's Horizon Europe, and so on. The NIME community has been positive to openness since the beginning, but still has not been able to fully explore this within the community. We call for a workshop to discuss how we can move forwards in making the NIME community (even) more open throughout all its activities.
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Jensenius, Alexander Refsum
(2019).
Exploring the Spatiotemporal Matrix in Music-Dance Performance.
Vis sammendrag
I will present the spatiotemporal matrix, a system for categorizing human actions into different spatial and temporal levels: micro, meso, macro. Most regular human actions would be categorized as meso-meso, that is, medium-sized motion within a timespan that fits our short-term memory. Exploring combinations of micro and macro levels in both space and time is challenging, but is also conceptually, practically and artistically interesting. I will show an example of this from the music-dance performance Sverm, and explain how the matrix was informed by my research into the effect of music on the micromotion observed when people try to stand still.
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Jensenius, Alexander Refsum
(2019).
Developing the self-playing guitars.
Vis sammendrag
The AAAI project holds a final workshop showcasing instruments developed and techniques explored. The workshop also consists of a performance with new pieces for augmented guitars, violins, double basses, ukuleles, as well as six self-playing guitars.
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Jensenius, Alexander Refsum; Erdem, Cagri; Zelechowska, Agata; Lan, Qichao; Fuhrer, Julian Peter & Gonzalez Sanchez, Victor Evaristo
(2019).
Entraining Guitars.
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Lan, Qichao; Tørresen, Jim & Jensenius, Alexander Refsum
(2019).
RaveForce: A Deep Reinforcement Learning Environment for Music.
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Jensenius, Alexander Refsum & Seres, Silvija
(2019).
Ekspørt: Alexander Refsum Jensenius.
[Radio].
LØRN Podcast.
Vis sammendrag
Hva kan vi finne når vi analyserer folks dansebevegelser? Og hva er selvspillende gitarer? I denne episoden av #LØRN snakker Silvija med førsteamanuensis ved Institutt for musikkvitenskap ved Universitetet i Oslo, Alexander Refsum Jensenius, om NM i stillstand og kunst og teknologi.
— Vi tror at det er noen dypt forankrede systemer som gjør at bevegelse og musikk er koblet sammen i hjernen vår. Så lyd og bevegelse har ikke skiller, forteller han.
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Jensenius, Alexander Refsum
(2019).
Towards Convergence in Research Assessment.
EARMA Link Magazine.
s. 14–14.
Vis sammendrag
Open Science is on everyone’s lips these days. There are many reasons why this shift is necessary and wanted, and also several hurdles. One big challenge is the lack of incentives and rewards. Underlying this is the question of what we want to incentivize and reward, which ultimately boils down to the way we assess research and researchers. This is not a small thing. After all, we are talking about the cornerstone of people’s careers, whether an inspiring academic gets a job, promotion, and project funding.
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Jensenius, Alexander Refsum; Martin, Charles Patrick; Erdem, Cagri; Lan, Qichao; Fuhrer, Julian Peter & Gonzalez Sanchez, Victor Evaristo
[Vis alle 8 forfattere av denne artikkelen]
(2019).
Self-playing Guitars.
Vis sammendrag
In this installation we explore how six self-playing guitars can entrain to each other. When they are left alone they will revert to playing a common pulse. As soon as they sense people in their surroundings they will start entraining to other pulses. The result is a fascinating exploration of a basic physical and cognitive concept, and the musically interesting patterns that emerge on the border between order and chaos.
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Lartillot, Olivier & Jensenius, Alexander Refsum
(2018).
SoundTracer.
Vis sammendrag
Discover traditional Norwegian music by drawing gestures with your iPhone or iPad.
First draw a gesture by moving your iPhone or iPad up and down, to indicate ascending and descending melody. A simple sound is played while you move your device, its pitch gets higher when you move up, and gets lower when you move down. You can also indicate the beginning of a new note by moving abruptly the phone up or down (a blue vertical line indicates the note position). It is also possible to indicate a particular note without indication of pitch by performing a quick movement down and up (a red vertical line indicates the note position).
Once you have terminated your gesture (by tapping once), the piece of music that contains the melodic gesture closest to your gesture is presented. The title and genre of that piece of music is indicated, as well as the performer and the district in Norway where it comes from. A melodic curve of the specific melodic gesture from the song is displayed below your own gesture. The matching between your gesture and the melody is based on a temporal alignment of their contours: the ascending parts of your gesture is aligned with the ascending parts of the melody, and same for the descending parts. The temporal note locations you have specified (bleu and red vertical lines) are also tentatively aligned with corresponding note changes in the melody. Some parts may be skipped, and are shown in red in the curves. When the music is played, a cursor moves throughout both curves so that you can follow the music while looking at the gestures.
SoundTracer uses Apple's ARKit technology, solely in order to precisely track the location of your iPhone or iPad. For that reason, there is no actual Augmented Reality, and the camera is solely used to improve the precision of the tracking, without displaying the actual frames of the camera.
For the moment, the catalogue of music is composed of around 50 pieces, and only the initial part of the melody is considered. The catalogue includes a few tunes played on the traditional Norwegian Hardanger fiddle, and songs sung a cappella. SoundTracer will be progressively improved with more music.
SoundTracer is an innovation project led by Alexander Refsum Jensenius, supported by the University of Oslo and developed in collaboration with the National Library of Norway. More information here: https://www.hf.uio.no/ritmo/english/projects/all/soundtracer/
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Fuhrer, Julian Peter; Glette, Kyrre & Jensenius, Alexander Refsum
(2018).
Interactive Animation of the RITMO Logo.
Vis sammendrag
In this project the logo of RITMO is installed in an interactive animation. It is able to move in accordance with the frequency band of an audio input stream. That is to say, the RITMO logo interacts with the rhythmical streams of music.
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Fuhrer, Julian; Glette, Kyrre & Jensenius, Alexander Refsum
(2018).
Interactive Animation of RITMO Logo.
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Fuhrer, Julian; Glette, Kyrre & Jensenius, Alexander Refsum
(2018).
Interactive Opening Animation.
Vis sammendrag
With this project we installed the logo of RITMO in an interactive animation for the opening of the centre. The logo is enabled to receive audio input such that it is able to move in accordance with the frequency band of the input. That is to say, the logo is able to move along with rythmic streams of the music.
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Jensenius, Alexander Refsum & Zhou, Bo
(2018).
Musical Gestures Toolbox for Matlab.
Vis sammendrag
The Musical Gestures Toolbox (MGT) is a Matlab toolbox for analysing music-related body motion, using sets of audio, video and motion capture data as source material.
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Jensenius, Alexander Refsum
(2018).
Motion Capture in Music Performance, Perception and Interaction.
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Jensenius, Alexander Refsum; Sundquist, Jonas Hartford & Eriksen, Siri Øverland
(2018).
De er studenter ved to universiteter samtidig.
[Internett].
Khrono.
Vis sammendrag
NTNU og Universitetet i Oslo har for første gang gått sammen om å lage et fellles studieprogram. Resultatet er masteren Music, Communication and Techonology.
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Jensenius, Alexander Refsum
(2018).
Åpen forskning - et humanistisk-teknologisk perspektiv.
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Jensenius, Alexander Refsum
(2018).
Evaluering, merittering og forskningsvurdering.
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Vestre, Eskil Olaf; Danielsen, Anne; Jensenius, Alexander Refsum; London, Justin; Schia, Katja Henriksen & Abramczyk, Filip
(2018).
Rytmen er en danser.
[Fagblad].
Ballade.
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Jensenius, Alexander Refsum & Tømte, Even
(2018).
Når bassisten står 500 kilometer unna.
[Fagblad].
Musikkultur.
Vis sammendrag
På masterprogrammet Music, communication, and technology bruker studenter i Oslo og Trondheim avansert videokonferanseutstyr til å jamme i sanntid.
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Jensenius, Alexander Refsum
(2018).
The Musical Gestures Toolbox for Matlab.
Vis sammendrag
The Musical Gestures Toolbox for Matlab (MGT) aims at
assisting music researchers with importing, preprocessing,
analyzing, and visualizing video, audio, and motion capture data in a coherent manner within Matlab.
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Martin, Charles Patrick; Lesteberg, Mari; Jawad, Karolina; Aandahl, Eigil; Xambó, Anna & Jensenius, Alexander Refsum
(2018).
Stillness under Tension.
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Martin, Charles Patrick; Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata; Erdem, Cagri & Jensenius, Alexander Refsum
(2018).
Stillness under Tension.
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Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Jensenius, Alexander Refsum
(2018).
Muscle activity response of the audience during an experimental music performance.
Vis sammendrag
This exploratory study investigates muscular activity characteristics of a group of audience members during an experimental music performance. The study was designed to be as ecologically valid as possible, collecting data in a concert venue and making use of low-invasive measurement techniques. Muscle activity (EMG) from the forearms of 8 participants revealed that sitting in a group could be an indication of a level of group engagement, while comparatively greater muscular activity from a participant sitting at close distance to the stage suggests performance-induced bodily responses. The self-reported measures rendered little evidence supporting the links between muscular activity and live music exposure, although a larger sample size and a wider range of music styles need to be included in future studies to provide conclusive results.
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Jensenius, Alexander Refsum
(2018).
Fremtiden er analog - perspektiver på humaniora og teknologi.
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Jensenius, Alexander Refsum
(2018).
Ny musikkforskning ved RITMO.
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Jære, Lisbet; Danielsen, Anne & Jensenius, Alexander Refsum
(2018).
På sporet av rytmen.
[Internett].
Uniforum.
Vis sammendrag
Hvorfor får vi lyst til å bevege oss når vi hører musikk? Vinnerne av UiOs innovasjonspris, Anne Danielsen og Alexander Refsum Jensenius, finner forhåpentligvis svaret når de fordyper seg i mennesket og rytmens mysterier.
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Toft, Martin & Jensenius, Alexander Refsum
(2018).
UiO og NTNU har starta revolusjonerande studium i musikkteknologi.
[Internett].
Uniforum.
Vis sammendrag
I dag opna Universitetet i Oslo og NTNU eit felles masterprogram der studentane skal utvikla musikkteknologi i det felles elektroniske klasserommet Portalen. – Det er utruleg at det er blitt realisert to år etter at eg kom med ideen, seier musikkforskar Alexander Refsum Jensenius.
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Lartillot, Olivier; Thedens, Hans-Hinrich & Jensenius, Alexander Refsum
(2018).
Computational model of pitch detection, perceptive foundations, and application to Norwegian fiddle music.
Vis sammendrag
Background
Automated detection of pitch in polyphonic music remains a difficult challenge (Benetos et al., 2013). Robust solutions can be found for simple cases such as monodies. Implementation of perceptive/cognitive models have been so far less successful than engineering methods, and in particular machine learning models. One reference model (Klapuri, 2006) preselects pitch candidates based on harmonic summation and searches for multiple pitches through cancellation.
Aims
The aim was to conceive a model for pitch detection in polyphonic music able to transcribe in details traditional Norwegian music played on Hardanger fiddle, where more than two strings are played at the same time. The new model should be applicable to other types of music as well. Perceptive and cognitive models should guide the improvement of the state of the art.
Main Contribution
The model is neither based on a machine-learning training on a given set of samples, nor explicitly relying on stylistic rules. Instead, the methodology consists in conceiving a set of rules as simple and general as possible while offering satisfying results for the chosen corpus of music. We follow some general principles of the model by (Klapuri 2006) while introducing new heuristics. We present a new method for harmonic summation that penalises harmonic series that are sparse, in particular when odd partials are absent, as it would indicate that the actual harmonic series is a multiple of the given pitch candidate. Besides, a multiple of a fundamental can be selected as pitch in addition to the fundamental itself if its attack phase is sufficiently distinctive. For that purpose, we introduce a concept of pitch percept that persists over the whole extent of the note, and that serves as a reference for the detection of higher pitches at harmonic intervals.
Results
The proposed method enables to obtain transcriptions of relatively good quality, with a low ratio of false positives and false negatives. The construction of the model is under refinement. We are applying this method to the analysis of recordings of Norwegian folk music, containing a large part of Hardinger fiddle pieces and a cappella singing.
Implications
Automated transcription is of high interest for musicology and music information retrieval. This enables for instance to build large corpora of scores for music analysis and opens news perspectives for computational musicology. By attempting to design computer models based on general rules as simple as possible rather than on machine learning, while resulting in a behaviour in terms of pitch detection that comes closer to human capabilities, we hypothesise that the underlying mechanisms thus modelled might suggest general computational capabilities that could be found in cognitive models as well. In the same time, an improvement of the model based on expertise in music perception and cognition is desired.
References
Benetos et al. (2013). Automatic music transcription: challenges and future directions. Journal of Intelligent Information Systems, 41, 407-434
Klapuri, Multiple Fundamental Frequency Estimation by Summing Harmonic Amplitudes. ISMIR 2006 Keywords: pitch, computational model, harmonic summation, Norwegian folk music, Hardanger fiddle.
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Gonzalez Sanchez, Victor Evaristo & Jensenius, Alexander Refsum
(2018).
Analysing the synchronisation of COM motion with music in human standing.
Vis sammendrag
Introduction
Postural stability have been the focus of a number of studies on fall prevention and sports, with an emphasis on walking dynamics1 . Fewer studies have aimed at understanding the influence of sound stimuli in standing posture sway 2.
Although the vestibular system plays a fundamental role in the control of postural stability, it has also been shown to be key in embodied cognition processes 3. It is in part through the vestibular system that music activates motor areas in the brain to induce movement, while body movement enhances the cognitive processing of sound and music 3.
This study explored the influence of music on postural control by measuring synchronization between body center of mass (COM) sway with music.
Methods
7 women (32 ± 4.39 years, 1.73 ± 0.04 m, mean ± SD), and 5 men (29.67 ± 4.63 years, 1.81 ± 0.04 m) participated in the study. Participants were asked to stand still for 6 minutes as they were presented with alternating segments of silence and music. COM movements were measured from the position of a passive marker placed in the midline of the sacrum, recorded using an infrared motion capture system. Radial and vertical COM movements were cross-correlated with the pulse clarity, RMS, and spectral centroid of the stimuli.
Results
Paired samples t-test revealed differences in COM radial and vertical sway between silent and music conditions to be significant at the 0.05 level.
A repeated measures ANOVA showed a significant effect of the stimuli on COM sway (p < 0.05).
The effect of the stimuli on the lag of maximum cross-correlation (delay) between COM radial sway and RMS was shown to be significant (p < 0.05). Differences in delay between pulse clarity and COM vertical sway were significant between stimuli (p < 0.05 ).
Discussion
Results suggest that the effect of RMS in music-induced postural sway might be predominant in the radial plane, with anticipatory behavior observed for stimuli with low RMS.
Vertical sway correspondence patterns suggest anticipatory vertical motion to music spectral centroid.
A more robust understanding of a range of music features and their links with induced movement could lead to insight into the role of the vestibular and sensory systems in balance control.
References
1 Cimolin, V., Galli, M. (2014). Summary measures for clinical gait analysis: A literature review. Gait & Posture 39, 1005-1010.
2 Ross, J. M., Warlaumont, A. S., Abney, D. H., Rigoli, L. M., and Balasubramaniam, R. (2016). Influence of musical groove on postural sway. Journal of Experimental Psychology: Human Perception and Performance Advance online publication.
3 Todd, N. P. (1999). Motion in music: A neurobiological perspective. Music Perception: An Interdisciplinary Journal 17, 115–126.
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Serafin, Stefania; Dahl, Sofia; Bresin, Roberto; Jensenius, Alexander Refsum; Unnthorsson, Runar & Välimäki, Vesa
(2018).
NordicSMC: A Nordic University Hub on Sound and Music Computing.
Vis sammendrag
Sound and music computing (SMC) is still an emerging field in many institutions, and the challenge is often to gain critical mass for developing study programs and undertake more ambitious research projects. We report on how a long-term collaboration between small and medium-sized SMC groups have led to an ambitious undertaking in the form of the Nordic Sound and Music Computing Network (NordicSMC), funded by the Nordic Research Council and institutions from all of the five Nordic countries (Denmark, Finland, Iceland, Norway, and Sweden). The constellation is unique in that it covers the field of sound and music from the “soft” to the “hard,” including the arts and humanities, the social and natural sciences, and engineering. This paper describes the goals, activities, and expected results of the network, with the aim of inspiring the creation of other joint efforts within the SMC community.
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Jensenius, Alexander Refsum; Martin, Charles Patrick; Bjerkestrand, Kari Anne Vadstensvik & Johnson, Victoria
(2018).
Stillness under Tension.
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Martin, Charles Patrick; Jensenius, Alexander Refsum & Tørresen, Jim
(2018).
Composing an ensemble standstill work for Myo and Bela.
Vis sammendrag
This paper describes the process of developing a standstill performance work using the Myo gesture control armband and the Bela embedded computing platform. The combination of Myo and Bela allows a portable and extensible version of the standstill performance concept while introducing muscle tension as an additional control parameter. We describe the technical details of our setup and introduce Myo-to-Bela and Myo-to-OSC software bridges that assist with prototyping compositions using the Myo controller.
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Martin, Charles Patrick; Xambó, Anna; Visi, Federico; Morreale, Fabio & Jensenius, Alexander Refsum
(2018).
Stillness under Tension.
Vis sammendrag
Stillness Under Tension is an ensemble standstill work for Myo gesture control armband and Bela embedded music platform. Humans are incapable of standing completely still due to breathing and other involuntary micromotions. This work explores the expressive space of standing still through an inverse action-sound mapping: less movement leads to more sound. Four performers stand as still as possible on stage, each wearing a Myo armband connected to a Bela embedded sound processing platform. The Myo is used to measure the performers movement, and the muscle activity in their forearm which they can use--both voluntarily and involuntarily--to control a synthesised sound world. Each performer uses one Myo and Bela in a musical space defined by their physical position and posture while standing still.
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Gonzalez Sanchez, Victor Evaristo; Martin, Charles Patrick; Zelechowska, Agata; Bjerkestrand, Kari Anne Vadstensvik; Johnson, Victoria & Jensenius, Alexander Refsum
(2018).
Bela-based augmented acoustic guitars for sonic microinteraction.
Vis sammendrag
This article describes the design and construction of a collection of digitally-controlled augmented acoustic guitars, and the use of these guitars in the installation \textit\{Sverm-Resonans\}. The installation was built around the idea of exploring `inverse’ sonic microinteraction, that is, controlling sounds by the micromotion observed when attempting to stand still. It consisted of six acoustic guitars, each equipped with a Bela embedded computer for sound processing (in Pure Data), an infrared distance sensor to detect the presence of users, and an actuator attached to the guitar body to produce sound. With an attached battery pack, the result was a set of completely autonomous instruments that were easy to hang in a gallery space. The installation encouraged explorations on the boundary between the tactile and the kinesthetic, the body and the mind, and between motion and sound. The use of guitars, albeit with an untraditional `performance’ technique, made the experience both familiar and unfamiliar at the same time. Many users reported heightened sensations of stillness, sound, and vibration, and that the `inverse’ control of the instrument was both challenging and pleasant.
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Zelechowska, Agata; Gonzalez Sanchez, Victor Evaristo & Jensenius, Alexander Refsum
(2018).
How music moves us? Studying human body micromotion in music perception.
Vis sammendrag
Music has the power to influence not only our thoughts and emotions, but also various physiological processes in our bodies. Furthermore, it often encourages physical movement of the listener. While there are numerous studies describing spontaneous psychophysiological responses to music that are linked with emotions, spontaneous body movement to music has became a topic of exploration relatively recently. Mostly, it has been studied in the context of free dance (Burger et al., 2013) or synchronization to musical rhythm while performing repetitive movements such as walking (Styns et al., 2007). But what can we observe if the participants are just standing still? In our project “MICRO - Human Bodily Micromotion in Music Perception and Interaction” we focus on movements so small that they can be unnoticed both by observer and performer, and that can happen involuntarily. This is what we call “micromotion” of the human body. To see how these small movements are affected by music, we develop different experiments using mainly motion capture technology, but also physiological measures such as electromyography (EMG). In this presentation I would like to describe some of our research methods, findings and plans.
In one of the experiment paradigms, disguised as the “Norwegian Championship of Standitill”, we invite groups of participants to the laboratory and ask them to stand as still as possible while we present them with segments of selected music or silence. The head motion of each participant is captured using an infrared optical system. In 2012, 91 subjects stood on the floor for 3 minutes in silence and 3 minutes listening to music of increasing level of rhythmicality and energy (Jensenius et al., 2017). In 2017, 71 participants listened to 6 minutes consisting of segments of silence alternating with electronic dance music (EDM), classical Indian music or Norwegian fiddle music. In both studies we observed higher mean quantity of motion of the participants (QoM) in music condition compared to silence condition, and the effect was driven mostly by EDM. We also observed correlations between QoM and participant’s age, height and standing strategy (locked knees), although these results are mixed between the two studies. The future goal is to look more closely into specific features in music that correspond with observed movement, to search for signs of rhythmic entrainment, and to see what demographic and psychological factors might contribute to interpersonal differences in music induced body micromotion.
References:
Burger, B., Thompson, M. R., Luck, G., Saarikallio, S., & Toiviainen, P. (2013). Influences of rhythm-and timbre-related musical features on characteristics of music-induced movement. Frontiers in psychology, 4, 183.
Jensenius, A. R., Zelechowska, A., & Gonzalez Sanchez, V. E. (2017). The Musical Influence on People's Micromotion when Standing Still in Groups. In Proceedings of the SMC Conferences (pp. 195-200). Aalto University.
Styns, F., van Noorden, L., Moelants, D., & Leman, M. (2007). Walking on music. Human movement science, 26(5), 769-785.
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Jensenius, Alexander Refsum; Adde, Lars & Flydal, Lars O.
(2018).
Forskningsmøte mellom musikk og medisin.
[Avis].
Vårt Land.
Vis sammendrag
Tverrfaglig nytte: Forskning på kroppens rytmer og bevegelser har skapt nye diagnoseverktøy som gjør at cerebral parese kan påpekes tidligere.
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Jensenius, Alexander Refsum & Seres, Silvija
(2018).
#89: Alexander Jensenius: Slik danser du din egen musikk.
[Internett].
Oslo Business Forum.
Vis sammendrag
Hvordan kan teknologi og musikk bli til noe veldig spennende? Og hva er unikt med måten vi beveger oss på? Dagens podkastgjest er førsteamanuensis i musikkteknologi, Alexander Jensenius.
I episode #89 av podkastserien ‘De som bygger det nye Norge med Silvija Seres’ snakker Jensenius om hvordan tverrfaglighet mellom uvanlige fag og disipliner åpne nye måter å tenke på.
Han snakker også om hvordan han bruker «motion capture» til å studere mennesker i bevegelse, hva rytme betyr for mennesker og hans beste råd til unge forskere.
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Jensenius, Alexander Refsum; Duch, Michael Francis; Langdalen, Jørgen; Åse, Tone; Larsen, Edvine & Østern, Tone Pernille
(2018).
Kunsten å forske.
Vis sammendrag
Hva er kunstnerisk forskning? Hvorfor heter det kunstnerisk utviklingsarbeid og ikke kunstnerisk forskning når det heter det i andre land? Er det sånn at kunstnerisk forskning skiller seg fra all annen type forskning, og i så fall hvorfor?
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Jensenius, Alexander Refsum
(2018).
Studying "nothing": complexities of human music-related micromotion.
Vis sammendrag
How much do people move when they try to stand still? Does listening to music influence your micromotion? Can we use micromotion in human-computer interaction? In this presentation, music technologist Alexander Refsum Jensenius (RITMO, UiO) will share some results from his research on human cognition on the boundaries between the conscious and the unconscious, the voluntary and the involuntary.
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Jensenius, Alexander Refsum
(2018).
The importance of "nothing": studying human music-related micromotion.
Vis sammendrag
How much do people move when they try to stand still? Does listening to music influence your micromotion? Can we use micromotion in human-computer interaction? In this presentation, music technologist Alexander Refsum Jensenius (RITMO, UiO) will share some results from his research on human cognition on the boundaries between the conscious and the unconscious, the voluntary and the involuntary.
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Jensenius, Alexander Refsum; Bjerkestrand, Kari Anne Vadstensvik; Johnson, Victoria; Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Jensenius, Francesca R.
(2018).
Sverm-Pluck.
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Jensenius, Alexander Refsum & Vogt, Yngve
(2018).
Musikkprogram kan avsløre cerebral parese.
[Internett].
Apollon.
Vis sammendrag
Musikkforsker har laget et dataprogram for å måle bevegelsene til dansere. Nå bruker medisinere verktøyet hans til å avsløre om små babyer har cerebral parese.
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Jensenius, Alexander Refsum
(2018).
Kan musikk påvirke stillstanden din?
Forskning.no.
ISSN 1891-635X.
Vis sammendrag
Det er umulig å stå stille. Kroppen lever og beveger seg hele tiden. Selv om man forsøker å stå i ro, klarer man det ikke helt. Så hvor stille står vi egentlig? Og hvordan påvirker musikk oss når vi står stille?
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Jensenius, Alexander Refsum & Sundquist, Jonas Hartford
(2017).
Forsker på musikk - ved å stå stille.
[Internett].
Khrono.
Vis sammendrag
Hvor stille kan du egentlig å stå når du hører på musikk? Det forsøker Alexander Refsum Jensenius å finne svar på.
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Jensenius, Alexander Refsum
(2017).
Status musikkteknologi ved UiO: forskning og undervisning.
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Jensenius, Alexander Refsum
(2017).
Humanities and technology - with a musicological twist.
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Jensenius, Alexander Refsum
(2017).
Musikk og bevegelses-laben ved Institutt for musikkvitenskap.
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Jensenius, Alexander Refsum; Martin, Charles Patrick; Bjerkestrand, Kari Anne Vadstensvik & Johnson, Victoria
(2017).
Sverm-Muscle.
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Jensenius, Alexander Refsum; Bjerkestrand, Kari Anne Vadstensvik; Donnarumma, Marco; Brean, Are & Bruusgaard, Jo C.
(2017).
Panel: Biophysical Music.
Vis sammendrag
"Biophysical Music" is volume 1 of the new concept "MusicLab", a series of events exploring the science of music from different perspectives. The idea is to mix research and edutainment through hands-on workshops, intellectual warm-ups, performances and data jockeying.
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Jensenius, Alexander Refsum; Martin, Charles Patrick; Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Johnson, Victoria
(2017).
Sverm-Resonans.
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Jensenius, Alexander Refsum; Bjerkestrand, Kari Anne Vadstensvik; Johnson, Victoria; Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Martin, Charles Patrick
(2017).
Sverm-resonans.
Vis sammendrag
An installation that gives you access to heightened sensations of stillness, sound and vibration. Unlike traditional instruments these guitars are “played” by (you) trying to stand still. The living body interacts with an electronic sound system played through the acoustic instrument. In this way, Sverm-Resonans explores the meeting points between the tactile and the kinesthetic, the body and the mind, and between motion and sound.
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Jensenius, Alexander Refsum
(2017).
Touching the digital: acoustic resonances in an electronic world.
Vis sammendrag
The presentation will reflect on the installation piece "Sverm-resonans".
As opposed to a traditional instrument, these guitars are “played” by trying to stand still. The living body interacts with an electronic sound system played through the acoustic instrument. In this way, Sverm-Resonans explores the meeting points between the tactile and the kinesthetic, the body and the mind, and between motion and sound.
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Jensenius, Alexander Refsum & Larsen, Hege
(2017).
Krass kritikk av den nye doktorgraden i kunst.
[Internett].
Khrono.
Vis sammendrag
Ny doktorgrad. Akademiet for yngre forskere er svært kritisk til regjeringens forslag om en egen kunst-doktorgrad. I stedet bør kunst og vitenskap integreres i en og samme grad, mener de.
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Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Jensenius, Alexander Refsum
(2017).
The influence of music in people's standstill.
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Jensenius, Alexander Refsum; Bjerkestrand, Kari Anne Vadstensvik; Johnson, Victoria; Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Martin, Charles Patrick
(2017).
Sverm-Resonans.
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Jensenius, Alexander Refsum
(2017).
From resonating strings to autonomous electronic instruments - towards a new organology.
Vis sammendrag
Vi lever i en spennende tid, med stadig nye varianter av både akustiske og elektroniske instrumenter. Disse passer sjelden inn i de tradisjonelle organologiske fremstillingene, noe som gjør at det er behov for en mer systematisk diskusjon av hvordan man kan klassifisere både instrumenter (i utvidet forstand) og dere spilleteknikk. I denne presentasjonen vil jeg forklare hovedelementene i en ny organologi som jeg holder på å utvikle, med utgangspunkt i det jeg kaller "handling-lyd-koblinger".
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Jensenius, Alexander Refsum; Bjerkestrand, Kari Anne Vadstensvik; Johnson, Victoria; Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Martin, Charles Patrick
(2017).
Sverm-Resonans.
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Jensenius, Alexander Refsum & Klausen, Aslaug Olette
(2017).
Tar roboter over musikken?
[Fagblad].
Ballade.
Vis sammendrag
Ja, mener musikkforsker, som samtidig mener dette gir mer plass til mennesker.
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Jensenius, Alexander Refsum; Bjerkestrand, Kari Anne Vadstensvik; Johnson, Victoria; Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Martin, Charles Patrick
(2017).
Sverm-Puls.
Vis sammendrag
An installation that gives you access to heightened sensations of stillness, sound and vibration.
Approach one of the guitars. Place yourself in front of it and stand still. Feel free to put your hands on the body of the instrument. Listen to the sounds appearing from the instrument. As opposed to a traditional instrument, these guitars are “played” by (you) trying to stand still. The living body interacts with an electronic sound system played through the acoustic instrument. In this way, Sverm-Puls explores the meeting points between the tactile and the kinesthetic, the body and the mind, and between motion and sound.
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Jensenius, Alexander Refsum; Bjerkestrand, Kari Anne Vadstensvik; Johnson, Victoria; Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Martin, Charles Patrick
(2017).
Sverm-Resonans.
Vis sammendrag
En installasjon som gir deg tilgang til stillstand, lyd og vibrasjon.
Stå stille. Lytt. Finn lyden. Beveg deg. Stå stille. Lytt. Hør spenningen. Kjenn på bevegelsene dine. Slapp av. Stå enda stillere. Lytt dypere. Føl på grensen mellom det kjente og det ukjente, det kontrollerbare og det ukontrollerbare. Hvordan møter kroppen lyden? Hvordan møter lyden kroppen? Hva hører du?
Gå bort til en av gitarene. Plasser deg fordan den og kjenn på stillstanden din. Hvis du vil kan du plassere hendene på instrumentet. Forsøk å lukke øynene. Åpne sansene for lydvibrasjonene du føler og hører. Stå så lenge du vil og kjenn på utviklingen av lyden, og dine indre opplevelser, bilder og assosiasjoner. I motsetning til et tradisjonelt instrument "spilles" disse gitarene ved at du står stille. Den levende kroppen interagerer med et elektronisk lydsystem spilt gjennom et akustisk instrument. Sverm-resonans utforsker møtepunktet mellom det taktile og det kinesiske, kroppen og sinnet, og mellom bevegelse og lyd.
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Jensenius, Alexander Refsum & Kelkar, Tejaswinee
(2017).
Improvisation for Linnstrument, voice and Mogees.
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Jensenius, Alexander Refsum
(2017).
Åpen forskning - et humanistisk-teknologisk perspektiv.
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Jensenius, Alexander Refsum
(2017).
Musikk og bevegelse.
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Kelkar, Tejaswinee & Jensenius, Alexander Refsum
(2017).
Representation Strategies in Two-handed Melodic Sound-Tracing.
Vis sammendrag
This paper describes an experiment in which the subjects performed a sound-tracing task to vocal melodies. They could move freely in the air with two hands, and their motion was captured using an infrared, marker-based system. We present a typology of distinct strategies used by the recruited participants to represent their perception of the melodies. These strategies appear as ways to represent time and space through the finite motion possibilities of two hands moving freely in space. We observe these strategies and present their typology through qualitative analysis. Then we numerically verify the consistency of these strategies by conducting tests of significance between labeled and random samples.
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Kelkar, Tejaswinee & Jensenius, Alexander Refsum
(2017).
Exploring melody and motion features in “sound-tracings”.
Vis sammendrag
Pitch and spatial height are often associated when describing music. In this paper we present results from a sound tracing study in which we investigate such sound–motion relationships. The subjects were asked to move as if they were creating the melodies they heard, and their motion was captured with an infra-red, marker-based camera system. The analysis is focused on calculating feature vectors typically used for melodic contour analysis. We use these features to compare melodic contour typologies with motion contour typologies. This is based on using proposed feature sets that were made for melodic contour similarity measurement. We apply these features to both the melodies and the motion contours to establish whether there is a correspondence between the two, and find the features that match the most. We find a relationship between vertical motion and pitch contour when evaluated through features rather than simply comparing contours.
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Jensenius, Alexander Refsum
(2017).
Fremtidens musikk.
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Solberg, Ragnhild Torvanger & Jensenius, Alexander Refsum
(2017).
Arm and Head Movements to Musical Passages of Electronic Dance Music.
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Jensenius, Alexander Refsum
(2017).
Online tools that will kickstart creativity.
Vis sammendrag
Music making has moved into the cloud. In this lecture-demonstration, Alexander Refsum Jensenius will show various tools for online music making, ranging from simple sound makers to advanced music programming. He will talk about the possibilities and limitations of various technologies, and propose a framework for understanding how online music making will shape the future of music.
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Jensenius, Alexander Refsum & Flydal, Lars O.
(2017).
Leter etter magien i musikken.
[Avis].
Vårt Land.
Vis sammendrag
Alexander Refsum Jensenius leter etter det magiske i musikken. Hans drøm er å hente ut kroppens egen musikk.
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Jensenius, Alexander Refsum
(2017).
Micro, Meso, Macro: Music-related body motion at different spatiotemporal levels.
Vis sammendrag
Performance of acoustic instruments is often happening at a spatiotemporal micro-level. Violin performance, for example, is based on an extreme control of the spatial placement of the left-hand fingering and the right-hand bow strokes. Even though there are exceptions, many digital musical instruments (DMIs) are based on meso- or macro-level control, that is, fairly large and slow control actions compared to acoustic instruments. In this talk I will present a theoretical framework for sound-producing actions and a related organological model. This will be exemplified with some of my empirical results of music-induced dancing, "air instrument" performance and sonic microinteraction.
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Jensenius, Alexander Refsum
(2017).
The importance of "nothing": studying human music-related micromotion.
Vis sammendrag
This presentation will focus on my research on human micromotion in musical contexts. My scientific research has focused on understanding more about the phenomenon of human standstill and how music influences our micromotion when standing still. My artistic research has focused on the exploration of micromotion in music and dance performance, and particularly how it is possible to set up systems for sonic microinteraction. My two separate "tracks" of research, the scientific and artistic, have positively reinforced each other, shedding light on a level of musical expressivity on the boundary between the conscious and the unconscious, the voluntary and the involuntary.
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Jensenius, Alexander Refsum; Gonzalez Sanchez, Victor Evaristo; Zelechowska, Agata & Bjerkestrand, Kari Anne Vadstensvik
(2017).
Exploring the Myo controller for sonic microinteraction.
Vis sammendrag
This paper explores sonic microinteraction using muscle sensing through the Myo armband. The first part presents results from a small series of experiments aimed at finding the baseline micromotion and muscle activation data of people
being at rest or performing short/small actions. The second part presents the prototype instrument MicroMyo, built around the concept of making sound with little motion. The instrument plays with the convention that inputting more energy into an instrument results in more sound. MicroMyo, on the other hand, is built so that the less you move, the more it sounds. Our user study shows that while such an "inverse instrument" may seem puzzling at first, it also opens a space for interesting musical interactions.
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Jensenius, Alexander Refsum
(2017).
From Interactive music-dance to clinical tool for cerebral palsy.
Vis sammendrag
Jensenius will talk about the unlikely story of how his basic music research has led to medical innovation. In 2005 he developed a method for visualizing the movements of dancers – motiongrams – with a set of accompanying software tools. Now this method is at the core of CIMA – Computer-based Infant Movement Assessment – a clinical system currently being tested in hospitals around the world, with the aim of detecting early-born infants' risk of developing cerebral palsy.
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Jensenius, Alexander Refsum & Klausen, Aslaug Olette
(2017).
Vil finne magien i musikken.
[Avis].
Morgenbladet.
Vis sammendrag
Nytt forskningsprosjekt skal studere mikrobevegelser, og skaper ekte eksperimentell musikk.
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Jensenius, Alexander Refsum
(2016).
Åpen forskning - et humanistisk-teknologisk perspektiv.
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Jensenius, Alexander Refsum & Duch, Michael Francis
(2016).
Edges.
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Jensenius, Alexander Refsum & Nymoen, Kristian
(2016).
Velkommen til Institutt for musikkvitenskap.
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Solberg, Ragnhild Torvanger & Jensenius, Alexander Refsum
(2016).
Optical Or Inertial? Evaluation Of Two Motion Capture Systems For Studies Of Dancing To Electronic Dance Music.
Vis sammendrag
What type of motion capture system is best suited for studying dancing to electronic dance music? The paper discusses positive and negative sides of using camera-based and sensor-based motion tracking systems for group studies of dancers. This is exemplified through experiments with a Qualisys infrared motion capture system being used alongside a set of small inertial trackers from Axivity and regular video recordings. The conclusion is that it is possible to fine-tune an infrared tracking system to work satisfactory for group studies of complex body motion in a “club-like” environment. For ecological studies in a real club setting, however, inertial tracking is the most scalable and flexible solution.
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Godøy, Rolf Inge; Song, Min-Ho; Nymoen, Kristian; Haugen, Mari Romarheim & Jensenius, Alexander Refsum
(2016).
¿Por qué marcamos el ritmo de la música con los pies?
[Internett].
BBC Mundo.
Vis sammendrag
¿Alguna vez has estado en un bar o en un restaurante, sentado en la calle o en un salón cuando suena música y tú y otros empiezan a golpear el piso con el pie al ritmo de la música?
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Jensenius, Alexander Refsum & Lyons, Michael J.
(2016).
Trends at NIME – Reflections on Editing “A NIME Reader”.
Vis sammendrag
This paper provides an overview of the process of editing the forthcoming anthology “A NIME Reader—Fifteen years of New Interfaces for Musical Expression.” The selection process is presented, and we reflect on some of the trends we have observed in re-discovering the collection of more than 1200 NIME papers published throughout the 15 yearlong history of the conference. An anthology is necessarily selective, and ours is no exception. As we present in this paper, the aim has been to represent the wide range of artistic, scientific, and technological approaches that characterize the NIME conference. The anthology also includes critical discourse, and through acknowledgment of the strengths and weaknesses of the NIME community, we propose activities that could further diversify and strengthen the field.
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Barrett, Natasha & Jensenius, Alexander Refsum
(2016).
The ‘Virtualmonium’: an instrument for classical sound diffusion over a virtual loudspeaker orchestra.
Vis sammendrag
Despite increasingly accessible and user-friendly multi-channel compositional tools, many composers still choose stereo formats for their work, where the compositional process is allied to diffusion performance over a ‘classical’ loudspeaker orchestra. Although such orchestras remain common within UK institutions as well as in France, they are in decline in the rest of the world. In contrast, permanent, high-density loudspeaker arrays are on the rise, as is the practical application of 3-D audio technologies. Looking to the future, we need to reconcile the performance of historical and new stereo works, side-byside native 3-D compositions. In anticipation of this growing need, we have designed and tested a prototype ‘Virtualmonium’. The Virtualmonium is an instrument for classical diffusion performance over an acousmonium emulated in higher-order Ambisonics. It allows composers to custom-design loudspeaker orchestra emulations for the performance of their works, rehearse and refine performances off-site, and perform classical repertoire alongside native 3-D formats in the same concert. This paper describes the technical design of the Virtualmonium, assesses the success of the prototype in some preliminary listening tests and concerts, and speculates how the instrument can further composition and performance practice.
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McPherson, Andrew; Berdahl, Edgar; Jensenius, Alexander Refsum; Lyons, Michael J.; Bukvic, Ivica Ico & Knudsen, Arve
(2016).
NIMEhub: Toward a Repository for Sharing and Archiving Instrument Designs.
Vis sammendrag
This workshop will explore the potential creation of a community database of digital musical instrument (DMI) designs. In other research communities, reproducible research practices are common, including open-source software, open datasets, established evaluation methods and community standards for research practice. NIME could benefit from similar practices, both to share ideas amongst geographically distant researchers and to maintain instrument designs after their first performances. However, the needs of NIME are different from other communities on account of NIME’s reliance on custom hardware designs and the interdependence of technology and arts practice. This half-day workshop will promote a community discussion of the potential benefits and challenges of a DMI repository and plan concrete steps toward its implementation.
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Jensenius, Alexander Refsum
(2016).
The Influence of Music on Human Standstill.
Vis sammendrag
This paper reports on a study of how music influences people standing still, with the aim to investigate: (a) How (much) people move when standing still in silence? (b) How (much) musical sound influences people's standstill?
A total of 103 participants (mean age 25 years, equal gender balance) were recruited to the study, which was presented as a "championship" of standstill. The participants each wore a reflective marker on their head, and its position was recorded using a state-of-the-art motion capture system. The task was to stand still on the floor for 6 minutes, 3 minutes in silence and 3 minutes with music. The musical stimuli were 7 excerpts of 20-40 seconds duration, ranging from slow, non-rhythmic music for the first excerpts to dance music at the end. After omitting subjects with with incomplete data sets, 91 participants have been included in the study.
The analysis shows that the average quantity of motion (QoM), calculated as the cumulative distance travelled for each of the head markers, was 6.5 mm/s (std: 1.6 mm/s) for the entire data set. For the 3-minute parts without music we found an average QoM of 6.3 mm/s (std 1.4 mm/s), as opposed to 6,6 mm/s (std 2,2 mm/s) for the part with music. The results are even more clear when looking at individual stimuli, with a QoM of 6,8 mm/s (std 2,3 mm/s) for the last dance music example. Contrary to our expectations, no particular spatiotemporal differences were found in the motion patterns for different musical excerpts.
The study confirmed the level of micromotion found in human standstill (6.5 mm/s QoM) found in our previous longitudinal studies. The study also confirmed our expectation that people spontaneously move to music, even when specifically trying to stand still. The study did not, however, confirm any spatiotemporal differences for the different musical material. Future studies will include looking systematically at how musical features influence both the quantity and quality of standstill.
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Støen, Ragnhild; Silberg, Inger Elisabeth; Loennecken, Marianne; Møinicken, Unn inger; Songstad, Nils Thomas & Labori, Cathrine
[Vis alle 11 forfattere av denne artikkelen]
(2016).
Computer based video analysis identifies Fidgety Movements in high-risk infants.
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Adde, Lars; Thomas, Niranjan; John b, Hima; Oommen, Samual p; Jensenius, Alexander Refsum & Fjørtoft, Toril Synnøve Larsso
[Vis alle 7 forfattere av denne artikkelen]
(2016).
Gestalt perception and computer-based video analysis of General Movements is associated with motor development at one year age in Very Low Birth Weight infants in India.
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Jensenius, Alexander Refsum
(2016).
Musikk som beveger.
Vis sammendrag
Hvorfor beveger du deg til musikk? Hva er det med dansemusikk som får deg til å danse? Hvor stille sitter du egentlig på en klassisk konsert? Alexander Refsum Jensenius vil svare på disse spørsmålene og fortelle mer om sin forskning på luftgitarister, discodansere, pianister og dirigenter. Utgangspunktet for forskningen er erkjennelsen av at musikkopplevelsen i bunn og grunn er kroppslig fundert. Vi opplever ikke musikk bare med ørene, alle sansene er involvert når vi "lytter". Ved å bruke bevegelsessporing som metode, er det mulig å systematisk studere hvordan folk responderer på musikk. Resultatet er ny kunnskap om musikalsk mening, fra et kroppslig perspektiv.
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Jensenius, Alexander Refsum
(2016).
Musikk som beveger.
Vis sammendrag
Hvorfor beveger du deg til musikk? Hvorfor tramper du takten forsiktig på jazzkonsert, men danser vilt og uhemmet på en mørk og svett klubb? Og, hvor stille sitter du egentlig på en klassisk konsert? Musikkforsker Alexander Refsum Jensenius vil svare på disse spørsmålene og fortelle mer om sin forskning på luftgitarister, discodansere, pianister og dirigenter.
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Jensenius, Alexander Refsum
(2016).
Når vi deler på alt – hva betyr det for kommunikasjonen mellom forskning og samfunn?
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Jensenius, Alexander Refsum
(2016).
Fra monografi til MOOC, åpen forskning i fremtidens humaniora.
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Jensenius, Alexander Refsum
(2016).
Exploring Music-related Micromotion in the Artistic-Scientific Research Project Sverm.
Vis sammendrag
This presentation will focus on my work on human micromotion in musical contexts. My scientific research has focused on understanding more about the phenomenon of human standstill and how music can influence our micromotion when standing still. My artistic research has focused on the exploration of micromotion in music and dance performance, and particularly how it is possible to set up systems for artistic microinteraction. Most importantly, even though it makes sense to talk about these as two separate "tracks" of research, the scientific and artistic, they have in fact been highly intertwined. It would not have been possible to achieve neither the scientific nor artistic outcomes without a true artistic-scientific research process.
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Tveit, Anders & Jensenius, Alexander Refsum
(2016).
Utvikling av konseptet “LÆR KIDSA MUSIKKODING”.
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Jensenius, Alexander Refsum & Hope, Tora
(2016).
Mennesket er avhengig av rytme.
[Internett].
Framtida.no.
Vis sammendrag
– Folk som kallar seg tonedøve og umusikalske spelar utmerka luftpiano, seier musikkforskar Alexander Refsum Jensenius. Over 4000 personar vil lære kva han har å seie om musikk og rørsle.
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Lyons, Michael J. & Jensenius, Alexander Refsum
(2016).
An Anthology of Fifteen Years of Musical Interface Research and Practice.
Vis sammendrag
To mark the fifteenth year of the New Interfaces for Musical Expression (NIME) conference, we initiated a project to compile an anthology of works representing the development and state of the art of musical interface research since 2001, when the first NIME was held as a two-day workshop of the ACM CHI conference (Poupyrev et al, 2001). To date, more than 1300 research articles have been published at the NIME conference, and similarly many live performances and demonstrations have been presented. In editing our anthology we selected about 30 representative articles from the NIME literature for their perceived impact and coverage of a wide range of interests. Prior works were augmented with commentaries from original authors and third-party experts. Authors and experts were given the opportunity to critique each others commentary before submitting final versions of their texts. The anthology covers the field of musical research broadly, if not exhaustively, including topics such as musical gesture recognition, augmented instruments, expressive performance with: bio-sensors, mobile devices, vision-based and haptic interfaces, various theoretical and social issues relating to musical interface research and other topics. At the time of writing, a version of the anthology, titled “A NIME Reader - Fifteen years of New Interfaces for Musical Expression” (Jensenius and Lyons, 2016) has been sent to the publisher and to authors for feedback, we therefore expect to be able to provide a final version of the work to the research community sometime in 2016. We would therefore like to use this opportunity to announce the results of this project to the wider, related research community. The presentation, which will constitute our first public announcement of the musical interface anthology project, will outline our reasons for undertaking the work and report on the process by which we selected the range of topics and articles for the anthology. We will summarize observations and lessons learned from organizing and editing the peer commentaries on the articles, and propose future activities which could benefit musical interface and related research communities.
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Jensenius, Alexander Refsum
(2016).
Musikk, dansefot og gåsehud.
[Radio].
NRK P1 Kveldsåpent.
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Jensenius, Alexander Refsum
(2015).
Exploring Music-related Body Motion.
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Jensenius, Alexander Refsum
(2015).
Micromotion in music and dance: Explorations on the boundaries to silence and stillness.
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Jensenius, Alexander Refsum & Tveit, Anders
(2015).
Lær kidsa musikkoding.
Vis sammendrag
Denne presentasjonen vil fokusere på utviklingen av et pedagogisk musikkteknologikonsept vi har kalt “Lær kidsa musikkoding”. Prosjektet springer ut av forskningsaktivitetene i fourMs-gruppen – Music, Mind, Motion, Machines – ved UiO, som jobber i grenselandet mellom opplevelse og skaping av musikk ved hjelp av ulike former for teknologier.
Målet med prosjektet er å utvikle et pedagogisk konsept for design av elektronisk musikk med utgangspunkt i enkel programvare og elektronikk. I tillegg er vi opptatt av å vise at det er mulig å benytte musikk som utgangspunkt for å lære både matematikk, elektronikk og programmering for elever helt ned i grunnskolen. Prosjektet er dermed godt posisjonert i forhold til å svare på behovet for faglig fornyelse og konvergens som det etterspørres i rapporten Fremtidens skole fra Ludvigen-utvalget.
Vi har gjennom flere år bygget opp både emner (blant annet MUS2830 - Interaktiv musikk) og pedagogiske opplegg (Oslo Laptop Orchestra og Oslo Mobile Orchestra) som har vært rettet mot universitetsstudenter. Nå tilpasser vi og videreutvikler flere av ideene herfra til bruk i skolesammenheng. Dette krever en annen skalering av både opplegg og teknologi, slik at det kan fungere med større grupper (20-30 elever) og innenfor andre tidsrammer (fra enkelttimer til ukeslange workshops).
Den første fasen av prosjektet gjennomføres høsten 2015 og dreier seg om å oversette og tilpasse det nettbaserte musikkprogrammeringsspråket Gibber til norsk. Gibber gjør det mulig å programmere rett i en nettleser, slik at det er minimalt med drifts- og installeringsbehov, og det fungerer på både datamaskiner og ulike mobilplattformer. En viktig del av arbeidet er å utvikle et sett musikalsk engasjerende eksempler, som også legger opp til en trinnvis økning i kompleksitet av matematikk, signalbehandling, og programmering.
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Hovda, Kristine & Jensenius, Alexander Refsum
(2015).
De ulydige.
[Avis].
DN Magasinet.
Vis sammendrag
– Det er som å si at man ikke liker små barn eller blomster, sier tankesmieleder Cathrine Sandnes. Hun er blant de fem prosentene av oss som ikke liker musikk.
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Nuwer, Rachel; Kobb, Christina Sofie; Godøy, Rolf Inge & Jensenius, Alexander Refsum
(2015).
Playing Mozart’s Piano Pieces as Mozart Did.
[Avis].
The New York Times.
Vis sammendrag
Classical piano pieces by such composers as Beethoven, Mozart and Chopin likely sounded much different when the masters first performed those works than they do today. Pianos themselves have changed considerably — but so, too, has technique.
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Adde, Lars; Jensenius, Alexander Refsum; Ihlen, Espen Alexander F. & Støen, Ragnhild
(2015).
Spatial distribution of general movements in preterm born infants assessed by computer-based video analysis.
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Adde, Lars; Yang, H; Sæther, Rannei; Jensenius, Alexander Refsum & Støen, Ragnhild
(2015).
Validity of computer-based video analysis for detection of fidgety movements.
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Støen, Ragnhild; Jensenius, Alexander Refsum; Fjørtoft, Toril Synnøve Larsso; Vaagen, Randi; Silberg, Inger Elisabeth & Loennecken, Marianne
[Vis alle 11 forfattere av denne artikkelen]
(2015).
Computer based video analysis identifies the temporal organization of Fidgety Movements in extremely preterm infants.
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Valle, Susanne c; Støen, Ragnhild; Sæther, Rannei; Jensenius, Alexander Refsum & Adde, Lars
(2015).
Test-retest reliability of computer-based video analysis of general movements in healthy term-born infants.
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Nymoen, Kristian; Haugen, Mari Romarheim & Jensenius, Alexander Refsum
(2015).
MuMYO – Evaluating and Exploring the MYO Armband for Musical Interaction.
Vis sammendrag
The MYO armband from Thalmic Labs is a complete and wireless motion and muscle sensing platform. This paper evaluates the armband’s sensors and its potential for NIME applications. This is followed by a presentation of the prototype instrument MuMYO. We conclude that, despite some shortcomings, the armband has potential of becoming a new “standard” controller in the NIME community.
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Jensenius, Alexander Refsum
(2015).
Microinteraction in Music/Dance Performance.
Vis sammendrag
This paper presents the scientific-artistic project Sverm, which has focused on the use of micromotion and microsound in artistic practice. Starting from standing still in silence, the artists involved have developed conceptual and experiential knowledge of microactions, microsounds and the possibilities of microinteracting with light and sound.
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Jensenius, Alexander Refsum & Tveit, Anders
(2015).
Fritt fall - Live coding.
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Jensenius, Alexander Refsum
(2015).
Digital musikkvitenskap?
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Jensenius, Alexander Refsum
(2015).
Musikkognisjon og nye elektroniske instrumenter.
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Jensenius, Alexander Refsum
(2015).
Music and body movement: Explorations on the boundaries to silence and stillness.
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Jensenius, Alexander Refsum; Nymoen, Kristian; Haugen, Mari Romarheim; Andersen, Ida & Evertsson, Henrik
(2015).
Ubevegelig norgesrekord.
[Avis].
Universitas.
Vis sammendrag
Torsdag 12. mars var det duket for historiens andre norgesmesterskap i stillstand.
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Jensenius, Alexander Refsum & Roald, Hanne
(2015).
Går det an å stå helt stille?
[TV].
NRK 1 - Dagsrevien 21.
Vis sammendrag
Går det an å stå helt stille? I dag ble det arrangert NM i stillstand ved Institutt for musikkvitenskap ved Universitetet i Oslo. Instituttleder Alexander Refsum Jensenius forklarer hva konkurransen går ut på.
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Valle, Susanne c; Sæther, Rannei; Jensenius, Alexander Refsum; Støen, Ragnhild & Adde, Lars
(2015).
test-retest reliability of computer-based analysis of general movements in healthy term-born infants.
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Jensenius, Alexander Refsum; Torsvik, Torkild; Trulsen, Ola Nymo & Ruud, Even
(2015).
- Vi tåler ikke lenger stillheten.
[Internett].
NRK.no.
Vis sammendrag
Ren stillhet er blitt så uutholdelig at det nå finnes mobilapplikasjoner som tilbyr bakgrunnsstøy. – Bruk dem med måte, advarer musikkterapeut.
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Jensenius, Alexander Refsum
(2014).
Hvorfor musikk beveger.
Vis sammendrag
Leder av Institutt for musikkvitenskap ved Universitetet i Oslo, Alexander Refsun Jensenius har forsket på hvordan folk beveger seg til musikk. Og hvordan bevegelser kan bli til musikk.
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Jensenius, Alexander Refsum & Dirdal, Linn Carin
(2014).
Lek med vidtspennende resultater.
[Internett].
Ballade.
Vis sammendrag
– Det viser seg at en del av de grunnproblemene vi jobber med treffer barn og unge, sier Alexander Refsum Jensenius, medlem av forskningsgruppen fourMs og instituttleder ved Institutt for musikkvitenskap ved UiO.
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Lied, Angelina Jaroslavna; Adde, Lars; Elvrum, Ann-Kristin; Støen, Ragnhild; Jensenius, Alexander Refsum & Vik, Torstein
(2014).
Bimanual performance and mirror movements in adolescents with unilateral spastic cerebral palsy: assessments by a novel computer vision based software.
Developmental Medicine & Child Neurology.
ISSN 0012-1622.
56,
s. 12–13.
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Lied, Angelina Jaroslavna; Adde, Lars; Elvrum, Ann-Kristin; Støen, Ragnhild; Jensenius, Alexander Refsum & Vik, Torstein
(2014).
Bimanual performance and mirror movements in adolescents with unilateral spastic cerebral palsy: assessments by a novel computer vision based software.
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Dirdal, Linn Carin; Orning, Tanja; Edwards, Peter & Jensenius, Alexander Refsum
(2014).
– Lytting er et arbeid.
[Internett].
Ballade.
Vis sammendrag
Lytter vi annerledes til ulike typer musikk? Og i så fall, hvorfor? Richard Wagner og Radiohead stiller likt når Institutt for musikkvitenskap i høst har satt lytting på timeplanen. – Målet er å utvide den vitenskapelige paletten, sier emneansvarlig Tanja Orning.
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Jensenius, Alexander Refsum; Adde, Lars & Borgan, Eldrid
(2014).
Schrödingers katt.
[TV].
NRK1.
Vis sammendrag
Et spebarns bevegelser kan se tilfeldige ut, men de følger et utviklingsmønster. Skader i hjernen på for tidlig fødte barn kan oppdages og behandles bedre enn før ved å kartlegge bevegelsene med teknologi fra dansens og musikkens verden.
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Nymoen, Kristian; Chandra, Arjun; Glette, Kyrre Harald; Tørresen, Jim; Voldsund, Arve & Jensenius, Alexander Refsum
(2014).
PheroMusic: Navigating a Musical Space for Active Music Experiences.
Vis sammendrag
We consider the issue of how a flexible musical space can be manipulated by users of an active music system. The musical space is navigated within by selecting transitions between different sections of the space. We take inspiration from pheromone trails in ant colonies to propose and investigate an approach that allows an artificial agent to navigate such musical spaces in accordance with the preferences of the user, and a set of boundaries specified by the designer of the musical space.
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Jensenius, Alexander Refsum
(2014).
Velkommen til Institutt for musikkvitenskap.
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Jensenius, Alexander Refsum
(2014).
To Gesture or Not? An Analysis of Terminology in NIME Proceedings 2001-2013.
Vis sammendrag
The term ‘gesture’ has represented a buzzword in the NIME community since the beginning of its conference series. But how often is it actually used, what is it used to describe, and how does its usage here differ from its usage in other fields of study? This paper presents a linguistic analysis of the motion-related terminology used in all of the papers published in the NIME conference proceedings to date (2001– 2013). The results show that ‘gesture’ is in fact used in 62 % of all NIME papers, which is a significantly higher percentage than in other music conferences (ICMC and SMC), and much more frequently than it is used in the HCI and biomechanics communities. The results from a collocation analysis support the claim that ‘gesture’ is used broadly in the NIME community, and indicate that it ranges from the description of concrete human motion and system control to quite metaphorical applications.
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Kildahl, Mari; Orning, Tanja; Edwards, Peter & Jensenius, Alexander Refsum
(2014).
We no longer really listen to music.
[Internett].
ScienceNordic.
Vis sammendrag
Researchers believe it's about time we reclaim the listening experience and pay more attention to it in musicology.
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Jensenius, Alexander Refsum
(2014).
Musikkvitenskap uten noter?
Ballade.
ISSN 0332-5148.
Vis sammendrag
Trenger man å kunne noter når man studerer musikk? Universitetet i Oslo tenker nytt rundt musikkvitenskapelig utdanning, skriver Alexander R Jensenius.
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Apalnes, Christine Ferner & Jensenius, Alexander Refsum
(2014).
Lyttingen er under press.
[Radio].
NRK P1 Norgesglasset.
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Apalnes, Christine Ferner; Årrestad, Karoline Paulsen & Jensenius, Alexander Refsum
(2014).
– Vi har mistet evnen til å lytte ordentlig.
[Internett].
NRK.no.
Vis sammendrag
Vi er omgitt av masse lyder hele dagen, og stillheten er vanskelig å finne. Det har endret våre evner til å lytte, også til musikk, mener forsker.
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Fladset, Aina & Jensenius, Alexander Refsum
(2014).
En ubehagelig stillhet.
[Avis].
Bergensavisen.
Vis sammendrag
– Vi omgir oss med så mye lyd at stillhet føles unaturlig for oss, sier forsker Alexander Refsum Jensenius.
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Kildahl, Mari; Orning, Tanja; Edwards, Peter & Jensenius, Alexander Refsum
(2014).
Vi lytter ikke lenger som før.
[Internett].
Forskning.no.
Vis sammendrag
Musikk er ikke noter. Musikk handler om kropp, om å skape og lytte. Men hvordan lytter vi til musikk i vår tid? Er vi i ferd med å glemme hva det vil si å lytte for alvor? Forskere frykter det.
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Simonnes, Kamilla & Jensenius, Alexander Refsum
(2014).
From music to medicine.
[Internett].
ScienceNordic.
Vis sammendrag
The analytical tool was developed to analyse how we move to music. Now, it may also provide answers to the risk of premature babies developing cerebral palsy.
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Simonnes, Kamilla & Jensenius, Alexander Refsum
(2014).
Fra musikk til medisin.
[Internett].
UiO.no.
Vis sammendrag
Analyseverktøyet skulle gi kunnskap om hvordan vi beveger oss til musikk. Nå kan det også gi svar på om premature barn står i fare for å utvikle cerebral parese.
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Haugnes, Gunhild M.; Jensenius, Alexander Refsum; Tørresen, Jim & Godøy, Rolf Inge
(2014).
Musikk + IT = kreativ boom.
[Internett].
Institutt for informatikk.
Vis sammendrag
Verktøy som påviser CP hos premature barn, musiker som ble skiapp-grunder, utvikling av bukse med innebygde trommer.
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Skogstad, Ståle Andreas van Dorp; Nymoen, Kristian; Høvin, Mats Erling; Holm, Sverre & Jensenius, Alexander Refsum
(2013).
Filtering Motion Capture Data for Real-Time Applications.
Vis sammendrag
In this paper we present some custom designed filters for real-time motion capture applications. Our target application is motion controllers, i.e. systems that interpret hand motion for musical interaction. In earlier research we found effective methods to design nearly optimal filters for realtime applications. However, to be able to design suitable filters for our target application, it is necessary to establish the typical frequency content of the motion capture data we want to filter. This will again allow us to determine a reasonable cutoff frequency for the filters. We have therefore conducted an experiment in which we recorded the hand motion of 20 subjects. The frequency spectra of these data together with a method similar to the residual analysis method were then used to determine reasonable cutoff frequencies. Based on this experiment, we propose three cutoff frequencies for different scenarios and filtering needs: 5, 10 and 15 Hz, which correspond to heavy, medium and light filtering, respectively. Finally, we propose a range of real-time filters applicable to motion controllers. In particular, low-pass filters and low-pass differentiators of degrees one and two, which in our experience are the most useful filters for our target application.
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Jensenius, Alexander Refsum
(2013).
Music, Movement, Standstill.
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Jensenius, Alexander Refsum
(2013).
Music-related micro-movements.
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Jensenius, Alexander Refsum; Thyness, Mons; Wingerei, Ellen K Sjøstrand; Kristensen, Turid; Zeiner-Henriksen, Hans T. & Watne, Åshild
[Vis alle 9 forfattere av denne artikkelen]
(2013).
Semesteråpningskonsert: Oslo mobilorkester.
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Jensenius, Alexander Refsum
(2013).
Non-Realtime Sonification of Motiongrams.
Vis sammendrag
The paper presents a non-realtime implementation of the sonomotiongram method, a method for the sonification of motiongrams. Motiongrams are spatiotemporal displays of motion from video recordings, based on frame-differencing and reduction of the original video recording. The sonomotiongram implementation presented in this paper is based on turning these visual displays of motion into sound using FFT filtering of noise sources. The paper presents the application ImageSonifyer, accompanied by video examples showing the possibilities of the sonomotiongram method for both analytic and creative applications.
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Jensenius, Alexander Refsum
(2013).
Sound analysis engine for dynamic logo.
Vis sammendrag
The Norwegian Academy of Music launched their new web page and logo today. As part of the visual profile, they wanted to create a dynamic logo, continuously reflecting the activities at the school. I was asked to contribute to making this new dynamic logo dynamic, and we ended up basing the system on analysis of the sound of the school.
The system I have developed is based on microphones in the canteen and the two concert halls. The audio signals from the microphones are fed to an analysis program, which in turn sends three global and perceptual paramaters (sound level, sharpness, and noisiness) to the logo generator running at the web server. The logo generator interprets the three sound parameters, and modifies the shapes, sizes and colours of the graphical elements in the logo.
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Jensenius, Alexander Refsum
(2013).
Kinectofon: Performing with Shapes in Planes.
Vis sammendrag
The paper presents the Kinectofon, an instrument for creating sounds through free-hand interaction in a 3D space. The instrument is based on the RGB and depth image streams retrieved from a Microsoft Kinect sensor device. These two image streams are used to create different types of motiongrams, which, again, are used as the source material for a sonification process based on inverse FFT. The instrument is intuitive to play, allowing the performer to create sound by ``touching'' a virtual sound wall.
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Kwak, Dongho; Jensenius, Alexander Refsum; Danielsen, Anne; Scholz, Hanne & Olsen, Petter Angell
(2023).
Music for cells? Rhythmic mechanical stimulations of cell cultures.
Universitetet i Oslo.
Fulltekst i vitenarkiv
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Zelechowska, Agata; Jensenius, Alexander Refsum; Laeng, Bruno & Vuoskoski, Jonna Katariina
(2020).
Irresistible Movement: The Role of Musical Sound, Individual Differences and Listening Context in Movement Responses to Music.
Universitetet i Oslo.
Fulltekst i vitenarkiv
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Silva, Sembapperumaarachchige & Jensenius, Alexander Refsum
(2020).
Sonification of Standstill Recordings.
Universitetet i Oslo.
Vis sammendrag
The goal of this thesis was to develop and experiment with a set of sonification tools to explore participant data from standstill competitions. Using data from the 2012 Norwegian Championship of Standstill, three sonification models were developed using the Max/MSP programming environment. The first section of the thesis introduces sonification as a method for data exploration and discusses different sonification strategies. Momentary Displacement of the position was derived from the position data and parameter mapping methods were used to map the data features with sound parameters. The displacement of position in the XY plane or the position changes along the Z-Axis can be mapped either to white-noise or to a sine tone. The data variables control the amplitude and a filter cut-off frequency of the white noise or the amplitude and frequency of the sine tone. Moreover, using sound spatialization together with sonification was explored by mapping position coordinates to spatial parameters of a sine tone. A “falling” effect of the standing posture was identified through the sonification. Also audible were the participants’ breathing patterns and postural adjustments. All in all, the implemented sonification methods can be effectively used to get an overview of the standstill dataset.
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Zhou, Bo & Jensenius, Alexander Refsum
(2016).
Video analysis of music-related body motion in Matlab.
Universitetet i Oslo.
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Today, there are several toolboxes which can work on audio, motion, or other sensor data. These toolboxes are very useful to provide characteristic analysis of audio and motion. Unfortunately, the analysis is done separately by different toolboxes. This results in inconvenience when we want to work on these data simultaneously. So developing a toolbox which integrates the existing toolboxes is necessary. The main goal of the project is to integrate these toolboxes in Matlab and provide video analysis combined with audio and motion capture data. This would be important for our interdisciplinary research on music and motions through fourMs as well as for external work on e.g. analyzing video recording for early child diagnosis of cerebral palsy. This project presents the development of a toolbox for Matlab entitled “Musical Gestures (MG) Toolbox”. This toolbox is aimed for solving pressing needs for the video analysis of music-related body motion since video source recorded by regular video camera is a very good option for studying motion. The term music-related body motion refers to all sorts of body motion found in music performance and perception. It has received a growing interest in music research and behavioral science over the last decades. Particularly, with the rapid development of modern technology, various motion capture systems make it possible to further study music-related body motion. Matlab has been chosen as the platform since it is readily available, and there are already several pre-existing toolboxes to build on. This includes the “Motion Capture (MoCap) Toolbox” [1] developed for the analysis and visualization of Motion Capture data, which is aimed specifically for the analysis of music-related body motion. The “Music Information Retrievel (MIR) Toolbox” [2] is another relevant toolbox, which is developed for the extraction of musical features from audio data and the investigation of relationships between sound and music features. While the two above mentioned toolboxes are useful for studying motion capture data and audio, respectively, they are very differently designed, and it is not possible to make combined analysis of audio and motion capture data. Furthermore, there is no integration with video analysis. The MG Max toolbox [3] has been developed for music-related video analysis in the graphical programming environment Max/Msp/Jitter, with a number of novel visualization techniques (motiongrams, motion history images, etc.). These techniques are commonly used in music research, but are not currently available in Matlab. The main contributions of this project consist of two following things. One is to integrate the MoCap toolbox and MIR toolbox, and provide simple preprocessing on different input data. Another is to provide several video analysis techniques to study music-related body motion in the toolbox. These video analysis techniques include motiongram, optical flow, eulerian video magnification. With these techniques, the developed MG toolbox for Matlab could provide reliable and quantitative analysis of music-related body motion based on video.
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Nymoen, Kristian; Tørresen, Jim; Godøy, Rolf Inge; Jensenius, Alexander Refsum & Høvin, Mats Erling
(2013).
Methods and Technologies for Analysing Links Between Musical Sound and Body Motion.
Akademisk Forlag.
ISSN 1501-7710.
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There are strong indications that musical sound and body motion are related. For instance, musical sound is often the result of body motion in the form of sound-producing actions, and musical sound may lead to body motion such as dance. The research presented in this dissertation is focused on technologies and methods of studying lower-level features of motion, and how people relate motion to sound. Two experiments on so-called sound-tracing, meaning representation of perceptual sound features through body motion, have been carried out and analysed quantitatively. The motion of a number of participants has been recorded using state-of- the-art motion capture technologies. In order to determine the quality of the data that has been recorded, these technologies themselves are also a subject of research in this thesis. A toolbox for storing and streaming music-related data is presented. This toolbox allows synchronised recording of motion capture data from several systems, independently of system-specific characteristics like data types or sampling rates. The thesis presents evaluations of four motion tracking systems used in research on music-related body motion. They include the Xsens motion capture suit, optical infrared marker-based systems from NaturalPoint and Qualisys, as well as the inertial sensors of an iPod Touch. These systems cover a range of motion tracking technologies, from state-of-the-art to low-cost and ubiquitous mobile devices. Weaknesses and strengths of the various systems are pointed out, with a focus on applications for music performance and analysis of music-related motion. The process of extracting features from motion data is discussed in the thesis, along with motion features used in analysis of sound-tracing experiments, including time-varying features and global features. Features for realtime use are also discussed related to the development of a new motion-based musical instrument: The SoundSaber. Finally, four papers on sound-tracing experiments present results and methods of analysing people’s bodily responses to short sound objects. These papers cover two experiments, presenting various analytical approaches. In the first experiment participants moved a rod in the air to mimic the sound qualities in the motion of the rod. In the second experiment the participants held two handles and a different selection of sound stimuli was used. In both experiments optical infrared marker-based motion capture technology was used to record the motion. The links between sound and motion were analysed using four approaches. (1) A pattern recognition classifier was trained to classify sound-tracings, and the performance of the classifier was analysed to search for similarity in motion patterns exhibited by participants. (2) Spearman’s p correlation was applied to analyse the correlation between individual sound and motion features. (3) Canonical correlation analysis was applied in order to analyse correlations between combinations of sound features and motion features in the sound-tracing experiments. (4) Traditional statistical tests were applied to compare sound-tracing strategies between a variety of sounds and participants differing in levels of musical training. Since the individual analysis methods provide different perspectives on the links between sound and motion, the use of several methods of analysis is recommended to obtain a broad understanding of how sound may evoke bodily responses.