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Re: HC selectivity ... was Re: Physiological models of cochlea activity - alternatives to the travelling wave

On 28 Sep 2007 at 12:55, Matt Flax wrote:


> With respect to a hair cell at rest ... take the following general 
> values for membrane resistance and capacitance :
> R= 40 Meg Ohms  ...  taken from [4] for example
> C= 1 pF         ...  taken from [5] for example
> The first order cut-off frequency would be about 25 kHz.
> fc=25 kHz.

How do you obtain this 25 kHz value?  Using
   f = 1 / (2 * pi * R * C)
I come up with about 4 kHz.

Best regards,

Bob Masta
            D A Q A R T A
Data AcQuisition And Real-Time Analysis
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