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New Forms of Representation 
to Listen, Analyze, and Create 
Electroacoustic Music 
Pierre Couprie 
Institut de Recherche en Musicologie (CNRS, UMR 8223) 
Université Paris-Sorbonne 
Société Française d’Analyse Musicale (SFAM) 
! 
pierre.couprie@paris-sorbonne.fr
New Forms of Representation 
to Listen, Analyze, and Create 
Electroacoustic Music 
Pierre Couprie 
Institut de Recherche en Musicologie (CNRS, UMR 8223) 
Université Paris-Sorbonne 
Société Française d’Analyse Musicale (SFAM) 
! 
pierre.couprie@paris-sorbonne.fr
Introduction 
• Transcription vs representation 
• Examples of analytical representations 
• Analytical representation & Creation 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Examples 
EAnalysis! 
Developed for MTIRC (De Montfort 
University, Leicester, UK) 
! 
Free for Macintosh 10.6 or later 
http://eanalysis.pierrecouprie.fr 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Transcription vs representation 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Transcription vs representation 
Delalande’s model of transcription 
Recording 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr 
Musical 
analysis 
Transcription 
Listening behavior 
François Delalande (2013), Analyser la musique, pourquoi, 
comment ?, Paris, INA, p. 121.
Ondes croisées (extract of De Natura Sonorum) by Bernard Parmegiani 
Transcription: Pierre Couprie 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Transcription vs representation 
Analytical model of representation 
Listening behavior Analysis 
Musical analysis 
Audio-visual 
recordings 
transcriptions 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr 
Complex/Composite 
analytical 
representations 
Acoustical 
representations 
Low level & High 
level extractions 
Acoustics Visualization design 
Technical files 
Documentation
Examples of analytical 
representations 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
J.M. Chouvel & al. (2007), « L'analyse musicale différentielle 
: principes, représentation et application à l'analyse de 
l'interprétation », EMS 
Entwurzelt by Hans Tutschku (2012) 
Necropolis-City of the Dead by Åke Parmerud (2011) 
Differential sonogram 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
M. Casey & al. (2008), « Content-Based Music Information 
Retrieval: Current Directions and Future Challenges », IEEE 
Entwurzelt by Hans Tutschku (2012) 
Audio descriptors (centroid, amplitude, inharmonicity) 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
M. Malt & E. Jourdan (2014), « Le « BStD » – Une 
représentation graphique de la brillance et de l’écart type 
spectral, comme possible représentation de l’évolution du 
timbre sonore », (forthcoming) 
Entwurzelt by Hans Tutschku (2012) 
Audio descriptors: BStD representation (centroid, amplitude, inharmonicity) 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Entwurzelt by Hans Tutschku (2012) 
Audio descriptors (centroid, amplitude, inharmonicity) 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Necropolis-City of the Dead by Åke Parmerud (2011) 
Audio descriptors (centroid, amplitude, inharmonicity) 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Entwurzelt by Hans Tutschku (2012) 
Audio descriptors + Tutschku’s structure + our structure 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Entwurzelt by Hans Tutschku (2012) 
Audio descriptors + Tutschku’s structure + my structure (similarity matrix) 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Mazurka project, Hierarchical Correlation Plots, http:// 
www.mazurka.org.uk 
Necropolis-City of the Dead by Åke Parmerud (2011) 
Amplitude correlation right & left 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Geoffroy Peeters (2007), « Sequence representation of 
music structure using higher-order similarity matrix and 
maximum-likelihood approach », OCG 
Necropolis-City of the Dead by Åke Parmerud (2011) 
Similarity matrix from spectral centroid descriptor 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Necropolis-City of the Dead by Åke Parmerud (2011) 
Similarity matrix from spectral centroid descriptor 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Elephant extract of soundtrack by Hildegard Westerkamp (2003) 
Composite analytical representation 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Elephant extract of soundtrack by Hildegard Westerkamp (2003) 
Composite analytical representation 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Analytical representation & 
Creation 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Analytical representation & Creation 
CataRT by Diemo Schwarz (Ircam) 
Concatenative synthesis 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Analytical representation & Creation 
Model of representation for creation and performance 
Musical 
analysis 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr 
Creation, 
Performance 
Sound 
material, 
Music 
Analytical 
representation
Analytical representation & Creation 
• Use these new forms of representation to explore, classify, 
manipulate and transform sound material 
• Graphical help for composition: musical representation of 
forms, singularities, spectromorphologies, various 
relationships 
• Live graphical assistance for performance, improvisation 
Pierre Couprie - pierre.couprie@paris-sorbonne.fr
Pierre Couprie 
! 
pierre.couprie@paris-sorbonne.fr

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New Forms of Representation to Listen, Analyze, and Create Electroacoustic Music

  • 1. New Forms of Representation to Listen, Analyze, and Create Electroacoustic Music Pierre Couprie Institut de Recherche en Musicologie (CNRS, UMR 8223) Université Paris-Sorbonne Société Française d’Analyse Musicale (SFAM) ! pierre.couprie@paris-sorbonne.fr
  • 2. New Forms of Representation to Listen, Analyze, and Create Electroacoustic Music Pierre Couprie Institut de Recherche en Musicologie (CNRS, UMR 8223) Université Paris-Sorbonne Société Française d’Analyse Musicale (SFAM) ! pierre.couprie@paris-sorbonne.fr
  • 3. Introduction • Transcription vs representation • Examples of analytical representations • Analytical representation & Creation Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 4. Examples EAnalysis! Developed for MTIRC (De Montfort University, Leicester, UK) ! Free for Macintosh 10.6 or later http://eanalysis.pierrecouprie.fr Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 5. Transcription vs representation Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 6. Transcription vs representation Delalande’s model of transcription Recording Pierre Couprie - pierre.couprie@paris-sorbonne.fr Musical analysis Transcription Listening behavior François Delalande (2013), Analyser la musique, pourquoi, comment ?, Paris, INA, p. 121.
  • 7. Ondes croisées (extract of De Natura Sonorum) by Bernard Parmegiani Transcription: Pierre Couprie Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 8. Transcription vs representation Analytical model of representation Listening behavior Analysis Musical analysis Audio-visual recordings transcriptions Pierre Couprie - pierre.couprie@paris-sorbonne.fr Complex/Composite analytical representations Acoustical representations Low level & High level extractions Acoustics Visualization design Technical files Documentation
  • 9. Examples of analytical representations Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 10. J.M. Chouvel & al. (2007), « L'analyse musicale différentielle : principes, représentation et application à l'analyse de l'interprétation », EMS Entwurzelt by Hans Tutschku (2012) Necropolis-City of the Dead by Åke Parmerud (2011) Differential sonogram Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 11. M. Casey & al. (2008), « Content-Based Music Information Retrieval: Current Directions and Future Challenges », IEEE Entwurzelt by Hans Tutschku (2012) Audio descriptors (centroid, amplitude, inharmonicity) Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 12. M. Malt & E. Jourdan (2014), « Le « BStD » – Une représentation graphique de la brillance et de l’écart type spectral, comme possible représentation de l’évolution du timbre sonore », (forthcoming) Entwurzelt by Hans Tutschku (2012) Audio descriptors: BStD representation (centroid, amplitude, inharmonicity) Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 13. Entwurzelt by Hans Tutschku (2012) Audio descriptors (centroid, amplitude, inharmonicity) Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 14. Necropolis-City of the Dead by Åke Parmerud (2011) Audio descriptors (centroid, amplitude, inharmonicity) Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 15. Entwurzelt by Hans Tutschku (2012) Audio descriptors + Tutschku’s structure + our structure Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 16. Entwurzelt by Hans Tutschku (2012) Audio descriptors + Tutschku’s structure + my structure (similarity matrix) Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 17. Mazurka project, Hierarchical Correlation Plots, http:// www.mazurka.org.uk Necropolis-City of the Dead by Åke Parmerud (2011) Amplitude correlation right & left Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 18. Geoffroy Peeters (2007), « Sequence representation of music structure using higher-order similarity matrix and maximum-likelihood approach », OCG Necropolis-City of the Dead by Åke Parmerud (2011) Similarity matrix from spectral centroid descriptor Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 19. Necropolis-City of the Dead by Åke Parmerud (2011) Similarity matrix from spectral centroid descriptor Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 20. Elephant extract of soundtrack by Hildegard Westerkamp (2003) Composite analytical representation Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 21. Elephant extract of soundtrack by Hildegard Westerkamp (2003) Composite analytical representation Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 22. Analytical representation & Creation Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 23. Analytical representation & Creation CataRT by Diemo Schwarz (Ircam) Concatenative synthesis Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 24. Analytical representation & Creation Model of representation for creation and performance Musical analysis Pierre Couprie - pierre.couprie@paris-sorbonne.fr Creation, Performance Sound material, Music Analytical representation
  • 25. Analytical representation & Creation • Use these new forms of representation to explore, classify, manipulate and transform sound material • Graphical help for composition: musical representation of forms, singularities, spectromorphologies, various relationships • Live graphical assistance for performance, improvisation Pierre Couprie - pierre.couprie@paris-sorbonne.fr
  • 26. Pierre Couprie ! pierre.couprie@paris-sorbonne.fr