An additional source of distortion-product otoacoustic emissions from perturbation of nonlinear force by reflection from inhomogeneities
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00360207" target="_blank" >RIV/68407700:21230/22:00360207 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/22:00360207
Result on the web
<a href="https://doi.org/10.1121/10.0013992" target="_blank" >https://doi.org/10.1121/10.0013992</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1121/10.0013992" target="_blank" >10.1121/10.0013992</a>
Alternative languages
Result language
angličtina
Original language name
An additional source of distortion-product otoacoustic emissions from perturbation of nonlinear force by reflection from inhomogeneities
Original language description
The basilar membrane in the cochlea can be modeled as an array of fluid coupled segments driven by stapes vibration and by the undamping nonlinear force simulating cochlear amplification. If stimulated with two tones, the model generates additional tones due to nonlinear distortion. These distortion products (DPs) can be transmitted into the ear canal and produce distortion-product otoacoustic emissions (DPOAEs) known to be generated in the healthy ear of various vertebrates. This study presents a solution for DPs in a two-dimensional nonlinear cochlear model with cochlear roughness-small irregularities in the impedance along the basilar membrane, which may produce additional DPs due to coherent reflection. The solution allows for decomposition of various sources of DPs in the model. In addition to the already described nonlinear-distortion and coherent-reflection mechanisms of DP generation, this study identifies a long-latency DPOAE component due to perturbation of nonlinear force. DP wavelets that are coherently reflected due to impedance irregularities travel toward the stapes across the primary generation region of DPs and there evoke perturbation of the nonlinear undamping force. The ensuing DP wavelets have opposite phase to the wavelets arising from coherent reflection, which results in partial cancellation of the coherent-reflection DP wavelets. (C) 2022 Author(s).
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10307 - Acoustics
Result continuities
Project
<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
ISSN
0001-4966
e-ISSN
1520-8524
Volume of the periodical
152
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
23
Pages from-to
1660-1682
UT code for WoS article
000855688900001
EID of the result in the Scopus database
2-s2.0-85139031590