A hardware cochlear nonlinear preprocessing model with active feedback
作者:
Eberhard Zwicker,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1986)
卷期:
Volume 80,
issue 1
页码: 146-153
ISSN:0001-4966
年代: 1986
DOI:10.1121/1.394175
出版商: Acoustical Society of America
数据来源: AIP
摘要:
A hardware model of the nonlinear preprocessing established in the inner ear consisting of 90 sections corresponding to a frequency range from 900 to 8000 Hz is described. The model is based on assumptions described by Zwicker [Biol. Cybern.35, 243–250 (1979)]: The outer hair cells act as saturating nonlinear mechanical amplifiers which feed back to the vibration of the basilar membrane while only the inner hair cells transfer information towards higher centers. The model shows many effects which correlate very closely to physiological and psychoacoustical counterparts. Quantitative data on the level‐dependence of frequency responses and phase responses as well as an example of suppression are outlined.
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