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    The fundamental principle of IRCAM is to encourage productive interaction among scientific research, technological developments, and contemporary music production. Since its establishment in 1977, this initiative has provided the foundation for the institute’s activities. One of the major issues is the importance of contributing to the renewal of musical expression through science and technology. Conversely, sp…

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    At the center of societal and economic concerns combining culture and information technologies, the current research at IRCAM is seen by the international research community as a reference for interdisciplinary projects on the sciences and technologies for sound and music, constantly exposed to society’s new needs and uses.

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  • Research

    The fundamental principle of IRCAM is to encourage productive interaction among scientific research, technological developments, and contemporary music production. Since its establishment in 1977, this initiative has provided the foundation for the institute’s activities. One of the major issues is the importance of contributing to the renewal of musical expression through science and technology. Conversely, sp…

    • Research Topics
    • The STMS Lab
    • Research Teams
    • Sound Systems and Signals: Audio/Acoustics, InstruMents
    • Acoustic and Cognitive Spaces
    • Perception and Sound Design
    • Sound Analysis-Synthesis
    • Sound Music Movement Interaction
    • Musical Representations
    • Analysis of Musical Practices
    • Projects
    • Sound Workshop
    • The Musical Body
    • Creative Dynamics
    • Musique/Sciences Collection
  • Creation

    IRCAM is an internationally recognized research center dedicated to creating new technologies for music. The institute offers a unique experimental environment where composers strive to enlarge their musical experience through the concepts expressed in new technologies.

    • Composers & Artists in Studio
    • In Ex Machina
    • Jazz Ex Machina
    • Improvise cum machina 1/2
    • Improvise cum machina 2/2
    • Like Sound, Like Flesh
    • Silent Talks
    • Music-Fictions
    • Tablado
    • Musical creation around Outer Space
    • Campo Abierto
    • Musical creation around Dream Work
    • Biotope
    • EROR
    • IDEA
    • Artistic Research Residency
    • Artistic Residencies: The Blog
    • Rendez Vous 20.21
    • Season 2021.22
    • Seasons from 1996 to present
    • ManiFeste-2022
    • ManiFeste festival from 2012 to 2022
    • L’Étincelle, IRCAM’s journal of creation
  • Transmission

    In parallel to its fundamental missions of research and creation, IRCAM is committed to sharing its knowledge and know-how, its technologies with the general public. Cutting-edge research and diffusion of innovations, an international reference for education and the democratization of artistic practices are the driving forces behind the institute’s educational activities.

    • 2022.23 Training Courses
    • Max, Max for Live
    • OpenMusic
    • Modalys
    • TS2 and Partiels
    • Sound spatialization
    • From PureData to audio plugins
    • Sensors, Interfaces, and Interactive Machine Learning
    • Other training programs
    • Practical Information
    • Advanced Programs
    • Cursus Program on Composition and Computer Music
    • Supersonic Chair
    • Master ATIAM
    • Sound Design Master's Program
    • Music Doctorate
    • AIMove Master
    • School Programs
    • Studios of Creation
    • Mixed-Music
    • Artistic and Cultural Education
    • Career Discovery Visit
    • Art School Reserach and Creation Workshop
    • Images of a Work Collection
    • ManiFeste-2022, the Academy
  • Innovations

    At the center of societal and economic concerns combining culture and information technologies, the current research at IRCAM is seen by the international research community as a reference for interdisciplinary projects on the sciences and technologies for sound and music, constantly exposed to society’s new needs and uses.

    • The IRCAM Forum
    • Subscribe to the Forum
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    • Ircam Amplify
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  • Modeling Audio Flows and the Geometry of Information
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  • Modeling Audio Flows and the Geometry of Information
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Modeling Audio Flows and the Geometry of Information

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New paradigms for audio signal processing and representation
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A digital audio signal contains multiple flows of high-level information such as notes, instruments, and the musical form. The analysis and extraction of these contents is a recurrent problem in science and computer-music technologies that attempts to bring these two aspects of sound—symbolic and identifying—closer together.

The objective of this project is to use tools recently created for the geometry of information to suggest new paradigms for audio signal processing and representation.

The geometry of information is a recent mathematical domain that studies notions of probability and information via differential geometry. The principle idea is
to find new means of representing information flows, making it possible to describe and reach high-level contents within a real-time audio flow. Easily accessing this information makes diverse artistic and industrial applications possible such as searching musical data, real-time recognition of musical data, and automatic improvisation.

IRCAM's Team: Music Representations team.

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