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Time-dependent parametric and harmonic templates in non-negative matrix factorization

Abstract : This paper presents a new method to decompose musical spectrograms derived from Non-negative Matrix Factorization (NMF). This method uses time-varying harmonic templates (atoms) which are parametric: these atoms correspond to musical notes. Templates are synthesized from the values of the parameters which are learnt in an NMF framework. This parameterization permits to accurately model some musical effects (such as vibrato) which are inaccurately modeled by NMF.
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https://hal.inria.fr/hal-00945292
Contributor : Roland Badeau <>
Submitted on : Monday, March 24, 2014 - 3:48:08 PM
Last modification on : Wednesday, October 14, 2020 - 1:11:49 PM
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  • HAL Id : hal-00945292, version 1

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Romain Hennequin, Roland Badeau, Bertrand David. Time-dependent parametric and harmonic templates in non-negative matrix factorization. Proc. of the 13th International Conference on Digital Audio Effects (DAFx), 2010, Graz, Austria. ⟨hal-00945292⟩

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