Measurement and interpretation of cochlear reflectance

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Reflectance is the transfer function between forward and reflected waves. Cochlear reflectance (CR) contributes to measured ear-canal reflectance (ECR) and contains useful information about hearing status. Comparisons between measurements and models should lead to improved clinical interpretation of CR measurements. Our ECR model consists of (1) a uniform tube representing the ear canal, (2) a lumped-element representation of the middle ear and (3) a non-uniform transmission-line representing the cochlea. The model simulation results were compared with measurements of both ECR and CR in both the time domain and frequency domain. Substantial agreement between measurements and model supports the view that CR originates mainly as linear coherent reflection due to random impedance perturbations along the cochlear partition.

Original languageEnglish (US)
Title of host publicationProceedings of Forum Acusticum
PublisherEuropean Acoustics Association, EAA
Volume2014-January
ISBN (Print)9788361402282
StatePublished - 2014
Event7th Forum Acusticum, FA 2014 - Krakow, Poland
Duration: Sep 7 2014Sep 12 2014

Other

Other7th Forum Acusticum, FA 2014
CountryPoland
CityKrakow
Period9/7/149/12/14

Fingerprint

reflectance
canals
ear
middle ear
cochlea
reflected waves
hearing
transfer functions
transmission lines
partitions
impedance
tubes
perturbation
simulation

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Neely, S. T., & Rasetshwane, D. M. (2014). Measurement and interpretation of cochlear reflectance. In Proceedings of Forum Acusticum (Vol. 2014-January). European Acoustics Association, EAA.

Measurement and interpretation of cochlear reflectance. / Neely, Stephen T; Rasetshwane, Daniel M.

Proceedings of Forum Acusticum. Vol. 2014-January European Acoustics Association, EAA, 2014.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Neely, ST & Rasetshwane, DM 2014, Measurement and interpretation of cochlear reflectance. in Proceedings of Forum Acusticum. vol. 2014-January, European Acoustics Association, EAA, 7th Forum Acusticum, FA 2014, Krakow, Poland, 9/7/14.
Neely ST, Rasetshwane DM. Measurement and interpretation of cochlear reflectance. In Proceedings of Forum Acusticum. Vol. 2014-January. European Acoustics Association, EAA. 2014
Neely, Stephen T ; Rasetshwane, Daniel M. / Measurement and interpretation of cochlear reflectance. Proceedings of Forum Acusticum. Vol. 2014-January European Acoustics Association, EAA, 2014.
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