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

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...

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Bibliographic Details
Published inThe Journal of the Acoustical Society of America Vol. 132; no. 6; pp. 3842 - 3848
Main Authors Verhulst, Sarah, Dau, Torsten, Shera, Christopher A.
Format Journal Article
LanguageEnglish
Published Melville, NY Acoustical Society of America 01.12.2012
American Institute of Physics
Subjects
Acoustic Stimulation
Audiometry, Pure-Tone
Audition
Biological and medical sciences
Cochlea - anatomy & histology
Cochlea - physiology
Computer Simulation
Ear and associated structures. Auditory pathways and centers. Hearing. Vocal organ. Phonation. Sound production. Echolocation
Fundamental and applied biological sciences. Psychology
Humans
Mechanotransduction, Cellular
Nonlinear Dynamics
Otoacoustic Emissions, Spontaneous
Perception
Physiological Acoustics
Psychoacoustics
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reaction Time
Sound Spectrography
Time Factors
Vertebrates: nervous system and sense organs
Transient response
Time domain method
Otoacoustic emission
Cochlea
Auditory disorder
Non linear effect
Modeling
Inner ear
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Summary: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.
Bibliography:ObjectType-Article-1
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Author to whom correspondence should be addressed. Electronic mail: save@bu.edu
ISSN:0001-4966
1520-8524
1520-8524
DOI:10.1121/1.4763989