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

Auteurs-es

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

Mots-clés :

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

Résumé

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.

Fichiers supplémentaires

Publié-e

2011-09-01

Comment citer

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

Numéro

Vol. 39 No. 3 (2011)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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