Synopsis Seriation: A computer music piece made with time-frequency scattering and information geometry
Vincent Lostanlen
Florian Hecker
Cet article présente Synopsis Seriation (2021), une création musicale générée avec l’aide de l’ordinateur. L’idée centrale consiste à ré-organiser des fragments de pistes dans une œuvre multicanal pré-existante afin de produire un flux stéréo. Nous appelons “sériation“ la recherche de la plus grande similarité de timbre entre fragments successifs dans chaque canal ainsi qu’entre canal gauche et canal droite. Or, puisque le nombre de permutations d’un ensemble est la factorielle de son cardinal, l’espace des séquences possibles est trop vaste pour être exploré directement par l’humain. Là contre, nous formalisons la sériation comme un problème d’optimisation NP-complet de type ``voyageur de commerce’’ et présen
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