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The generation of harmonic distortion and distortion products in a computational model of the cochlea

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

It is generally agreed that the nonlinear response of the cochlea is due to the forward transduction of the outer hair cell (OHC) hair bundle (HB) and subsequent alteration of the active force applied to the cochlear structures, including the basilar membrane (BM). A mechanical-acoustical-electrical model of the cochlea with three-dimensional fluid representation, and feedback from OHC somatic motility coupled to nonlinear HB mechanotransduction is used to predict nonlinear distortion of the BM response to acoustic stimulus. An efficient alternating frequency time scheme is implemented to solve for the nonlinear stationary dynamics of the cochlea. The model is used to predict the location of maximum generation of nonlinear distortion during pure tone and two-tone stimulation as well as the propagation of the distortion components on the BM.

Original languageEnglish
Title of host publicationWhat Fire is in Mine Ears
Subtitle of host publicationProgress in Auditory Biomechanics - Proceedings of the 11th International Mechanics of Hearing Workshop
Pages231-237
Number of pages7
DOIs
StatePublished - 2011
Event11th International Mechanics of Hearing Workshop - What Fire is in Mine Ears: Progress in Auditory Biomechanics - Williamstown, MA, United States
Duration: Jul 16 2011Jul 22 2011

Publication series

NameAIP Conference Proceedings
Volume1403

Conference

Conference11th International Mechanics of Hearing Workshop - What Fire is in Mine Ears: Progress in Auditory Biomechanics
Country/TerritoryUnited States
CityWilliamstown, MA
Period07/16/1107/22/11

Keywords

  • cochlear amplifier
  • distortion product
  • harmonic distortion

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