Nonlinear time-domain cochlear model for transient stimulation and human otoacoustic emission

J Acoust Soc Am. 2012 Dec;132(6):3842-8. doi: 10.1121/1.4763989.

Abstract

This paper describes the implementation and performance of a nonlinear time-domain model of the cochlea for transient stimulation and human otoacoustic emission generation. The nonlinearity simulates compressive growth of measured basilar-membrane impulse responses. The model accounts for reflection and distortion-source otoacoustic emissions (OAEs) and simulates spontaneous OAEs through manipulation of the middle-ear reflectance. The model was calibrated using human psychoacoustical and otoacoustic tuning parameters. It can be used to investigate time-dependent properties of cochlear mechanics and the generator mechanisms of otoacoustic emissions. Furthermore, the model provides a suitable preprocessor for human auditory perception models where realistic cochlear excitation patterns are desired.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acoustic Stimulation
  • Audiometry, Pure-Tone
  • Cochlea / anatomy & histology
  • Cochlea / physiology*
  • Computer Simulation*
  • Humans
  • Mechanotransduction, Cellular*
  • Nonlinear Dynamics*
  • Otoacoustic Emissions, Spontaneous*
  • Psychoacoustics
  • Reaction Time
  • Sound Spectrography
  • Time Factors