Cochlear evanescent liquid sound-pressure waves during spontaneous Oto-Acoustic emissions

Authors

  • Reinhart Frosch Sommerhaldenstrasse 5B, CH-5200 Brugg, Switzerland

Keywords:

Laplace equation, Surface waves, Basilar membranes, Box models, Liquid particle, Mechanical coupling, Newton's second law, Surface mass

Abstract

Liquid particles having a no-wave location on one of these streamlines stay on that line during their oscillation. The evanescent liquid sound-pressure wave described in Section 2.2 fulfils the Laplace equation. It is however incompatible with Newton's second law applied to the friction-less passive basilar-membrane (BM) elements of a cochlear box model with x-independent BM stiffness S and BM surface mass density M and with negligible direct mechanical coupling of the BM elements. In the real cochlea, slow traveling surface waves of given frequency are impossible at the without-liquid BM resonance place for that frequency, but are possible at the corresponding with-liquid resonance place, which is more basal by typically 0.24 octave distance.

Additional Files

Published

2011-09-01

How to Cite

1.
Frosch R. Cochlear evanescent liquid sound-pressure waves during spontaneous Oto-Acoustic emissions. Canadian Acoustics [Internet]. 2011 Sep. 1 [cited 2025 Feb. 19];39(3):122-3. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2441

Issue

Vol. 39 No. 3 (2011)

Section

Proceedings of the Acoustics Week in Canada

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