Audio Morphing Using Matrix Decomposition and Optimal Transport

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Abstract

This paper presents a system for morphing between audio recordings in a continuous parameter space. The proposed approach combines matrix decompositions used for audio source separation with displacement interpolation enabled by 1D optimal transport. Using NMF decompositions, the system allows varying the timbre of a sound in real time, while reproducing the temporal activations of its main components. Using HPSS as a preprocessing step, the system affords more detailed control of the interpolation in perceptually meaningful dimensions.
Original languageEnglish
Title of host publicationProceedings of DAFX2020
Publication statusAccepted/In press - 30 May 2020
Event23rd International Conference on Digital Audio Effects - University of Music and Performing Arts, Vienna, Austria
Duration: 8 Sep 202110 Sep 2021
Conference number: 23
http://www.dafx.de/index.html

Conference

Conference23rd International Conference on Digital Audio Effects
Abbreviated titleDAFx 2020
CountryAustria
CityVienna
Period8/09/2110/09/21
Internet address

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