[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

*To*: AUDITORY@xxxxxxxxxxxxxxx*Subject*: Re: propagation speed of the traveling wave*From*: Reinhart Frosch <reinifrosch@xxxxxxxxxx>*Date*: Sat, 9 Apr 2005 20:25:20 +0000*Comments*: To: "Rossi Mark (PA-ATMO1/EES21) *" <Mark.Rossi@DE.BOSCH.COM>*Delivery-date*: Sat Apr 9 16:31:32 2005*In-reply-to*: <5C26DA67C8DFC343AEBE7BFB9F19F0BD010956B4@si-mail20.de.bosch.com>*Reply-to*: Reinhart Frosch <reinifrosch@xxxxxxxxxx>*Sender*: AUDITORY Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx>

Dear List, In my earlier answer (April 9, 2005, 13:20 h) to Mark Rossi there are wrong numbers. The mentioned figure of R. Patuzzi ("The Cochlea", page 211) is conistent with the following values: Water depths: h = 0.1, 1, 10, and 100 mm. Stiffness E = 10^3 kg / (m^2 s^2). Surface mass M = 1 kg / m^2. Also, the cochlea is a double channel. There is liquid on both sides of the elastic "surface layer". That can be accounted for by setting, in Patuzzi's formula, the density to d = 2000 kg / m^3. Consequence: At the base of the cochlea, the long-wave model with its frequency- independent propagation velocity is concluded, via Patuzzi's formula and de Boers stiffness (in his "The Cochlea" article), to be valid for an even smaller range of frequencies, namely for frequences much lower than 3.1 kHz. Reinhart Frosch, CH-5200 Brugg. reinifrosch@xxxxxxxxxx >-- Original-Nachricht -- >Date: Fri, 8 Apr 2005 12:21:19 +0200 >Reply-To: "Rossi Mark (PA-ATMO1/EES21) *" <Mark.Rossi@xxxxxxxxxxxx> >From: "Rossi Mark (PA-ATMO1/EES21) *" <Mark.Rossi@xxxxxxxxxxxx> >Subject: propagation speed of the traveling wave >To: AUDITORY@xxxxxxxxxxxxxxx

**References**:**propagation speed of the traveling wave***From:*Rossi Mark (PA-ATMO1/EES21) *

- Prev by Date:
**Re: propagation speed of the traveling wave** - Next by Date:
**location of the sacculus and utricles** - Previous by thread:
**Re: propagation speed of the traveling wave** - Next by thread:
**Re: propagation speed of the traveling wave** - Index(es):