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1 Northwestern University Evanston 2 MULTISPEECH - Speech Modeling for Facilitating Oral-Based Communication Inria Nancy - Grand Est, LORIA - NLPKD - Department of Natural Language Processing & Knowledge Discovery

Abstract : We propose the Multi-resolution Common Fate Transform MCFT, a signal representation that increases the separabil-ity of audio sources with significant energy overlap in the time-frequency domain. The MCFT combines the desirable features of two existing representations: the invertibility of the recently proposed Common Fate Transform CFT and the multi-resolution property of the cortical stage output of an auditory model. We compare the utility of the MCFT to the CFT by measuring the quality of source separation performed via ideal binary masking using each representation. Experiments on harmonic sounds with overlapping fundamental frequencies and different spectro-temporal modulation patterns show that ideal masks based on the MCFT yield better separation than those based on the CFT.

Keywords : audio source separation multiresolution

Autor: Fatemeh Pishdadian - Bryan Pardo - Antoine Liutkus -

Fuente: https://hal.archives-ouvertes.fr/


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