Title
Nonlinear vibration response measured at umbo and stapes in the rabbit middle ear Nonlinear vibration response measured at umbo and stapes in the rabbit middle ear
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Human medicine
Source (journal)
Jaro: journal of the Association for Research in Otolaryngology. - New York, N.Y.
Volume/pages
16(2015) :5 , p. 569-580
ISSN
1525-3961
ISI
000361394400002
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Using laser vibrometry and a stimulation and signal analysis method based on multisines, we have measured the response and the nonlinearities in the vibration of the rabbit middle ear at the level of the umbo and the stapes. With our method, we were able to detect and quantify nonlinearities starting at sound pressure levels of 93-dB SPL. The current results show that no significant additional nonlinearity is generated as the vibration signal is passed through the middle ear chain. Nonlinearities are most prominent in the lower frequencies (125 Hz to 1 kHz), where their level is about 40 dB below the vibration response. The level of nonlinearities rises with a factor of nearly 2 as a function of sound pressure level, indicating that they may become important at very high sound pressure levels such as those used in high-power hearing aids.
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https://repository.uantwerpen.be/docman/iruaauth/8d3be8/128700.pdf
Full text (open access)
https://repository.uantwerpen.be/docman/irua/a256b5/128700_2016_07_11.pdf
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