MY ETD IS MADE BY SIEMENS

[Don]

Hi Bill,

The accepted lower limit for hearing is 20 hertz--so I suspect that
anything lower would be perceived as beating. A0 is ~27 hertz--but with a
frequency wave length of ~26 feet it may rarely exist.

At 01:10 PM 3/20/2006 -0500, you wrote:
>On Mar 20, 2006, at 10:09 AM, 

>Then does anybody know the point at which a series of pulses turns into a
>tone? 10 Hz, 15Hz? Is the point which beat rate is too fast to be unusable
>for us aural tuners any higher than 12 bps?
> Bill Ballard
>Version: 7.1.385 / Virus Database: 268.2.5/284 - Release Date: 3/17/2006 

Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
Non calor sed umor est qui nobis incommodat

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