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Hearing as adaptive cascaded envelope interpolation

Authors :
Thoret, Etienne
Ystad, Sølvi
Kronland-Martinet, Richard
Perception, Représentations, Image, Son, Musique (PRISM)
Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)
Institute of Language, Communication and the Brain (ILCB)
Laboratoire d'Informatique et Systèmes (LIS)
Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)
ANR-16-CONV-0002,ILCB,ILCB: Institute of Language Communication and the Brain(2016)
ANR-11-LABX-0036,BLRI,Brain & LANGUAGE Research Institute(2011)
ANR-11-IDEX-0001,Amidex,INITIATIVE D'EXCELLENCE AIX MARSEILLE UNIVERSITE(2011)
Source :
Communications Biology, Communications Biology, 2023, 6 (1), pp.671. ⟨10.1038/s42003-023-05040-5⟩
Publication Year :
2023
Publisher :
HAL CCSD, 2023.

Abstract

International audience; The human auditory system is designed to capture and encode sounds from our surroundings and conspecifics. However, the precise mechanisms by which it adaptively extracts the most important spectro-temporal information from sounds are still not fully understood. Previous auditory models have explained sound encoding at the cochlear level using static filter banks, but this vision is incompatible with the nonlinear and adaptive properties of the auditory system. Here we propose an approach that considers the cochlear processes as envelope interpolations inspired by cochlear physiology. It unifies linear and nonlinear adaptive behaviors into a single comprehensive framework that provides a data-driven understanding of auditory coding. It allows simulating a broad range of psychophysical phenomena from virtual pitches and combination tones to consonance and dissonance of harmonic sounds. It further predicts the properties of the cochlear filters such as frequency selectivity. Here we propose a possible link between the parameters of the model and the density of hair cells on the basilar membrane. Cascaded Envelope Interpolation may lead to improvements in sound processing for hearing aids by providing a non-linear, data-driven, way to preprocessing of acoustic signals consistent with peripheral processes.

Details

Language :
English
ISSN :
23993642
Database :
OpenAIRE
Journal :
Communications Biology, Communications Biology, 2023, 6 (1), pp.671. ⟨10.1038/s42003-023-05040-5⟩
Accession number :
edsair.od......3430..db1382c8c499d727f36797a0f100cf76
Full Text :
https://doi.org/10.1038/s42003-023-05040-5⟩