How many waves propagate in the cochlea?
How many waves propagate in the cochlea?
It is commonly assumed that only a single type of wave gives rise to almost all of the normal measured properties of the cochlea. It is shown here that any form of longitudinal coupling, in addition to 1D fluid coupling, will give rise to additional types of waves, which may or may nor propagate depending on their wavenumber and may or may not play a role in cochlear function depending on whether they are significantly excited. The properties of these waves can be calculated analytically for simple extensions of the standard model, or using the “wave finite element” method for more complicated numerical models. The wave parameters calculated by these methods can be used to decompose the behavior of a fully coupled cochlear model in terms of individual wave amplitudes and thus quantify the importance of other wave types.
hearing, acoustic impedance, acoustics, finite element analysis
0735409757
563-568
American Institute of Physics
Elliott, S.J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Ni, G.
f6ddc112-7d81-403a-b97a-7ecbc8fd4e59
Mace, B.R.
cfb883c3-2211-4f3a-b7f3-d5beb9baaefe
Lineton, B.
1ace4e96-34da-4fc4-bc17-a1d82b2ba0e2
July 2011
Elliott, S.J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Ni, G.
f6ddc112-7d81-403a-b97a-7ecbc8fd4e59
Mace, B.R.
cfb883c3-2211-4f3a-b7f3-d5beb9baaefe
Lineton, B.
1ace4e96-34da-4fc4-bc17-a1d82b2ba0e2
Elliott, S.J., Ni, G., Mace, B.R. and Lineton, B.
(2011)
How many waves propagate in the cochlea?
Shera, Christopher A. and Olson, Elizabeth S.
(eds.)
In What Fire is in Mine Ears: Progress in Auditory Biomechanics.
vol. 1403,
American Institute of Physics.
.
(doi:10.1063/1.3658149).
Record type:
Conference or Workshop Item
(Paper)
Abstract
It is commonly assumed that only a single type of wave gives rise to almost all of the normal measured properties of the cochlea. It is shown here that any form of longitudinal coupling, in addition to 1D fluid coupling, will give rise to additional types of waves, which may or may nor propagate depending on their wavenumber and may or may not play a role in cochlear function depending on whether they are significantly excited. The properties of these waves can be calculated analytically for simple extensions of the standard model, or using the “wave finite element” method for more complicated numerical models. The wave parameters calculated by these methods can be used to decompose the behavior of a fully coupled cochlear model in terms of individual wave amplitudes and thus quantify the importance of other wave types.
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More information
Published date: July 2011
Venue - Dates:
Proceedings of the 11th International Mechanics of Hearing Workshop, Williamstown, United States, 2011-07-16 - 2011-07-22
Keywords:
hearing, acoustic impedance, acoustics, finite element analysis
Organisations:
Signal Processing & Control Grp
Identifiers
Local EPrints ID: 349793
URI: http://eprints.soton.ac.uk/id/eprint/349793
ISBN: 0735409757
PURE UUID: c551379f-e31f-4fd8-9b54-65a9570caee2
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Date deposited: 11 Mar 2013 14:24
Last modified: 15 Mar 2024 03:15
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Contributors
Author:
G. Ni
Editor:
Christopher A. Shera
Editor:
Elizabeth S. Olson
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