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Klarinet Archive - Posting 000215.txt from 2001/02

From: Bill Hausmann <>
Subj: Re: [kl] Re: strange intonation in warm up exercise
Date: Wed, 7 Feb 2001 06:50:09 -0500

At 08:20 PM 2/6/2001 -0800, William Wright wrote:
> <><> somebody wrote:
>when two people sound a major second interval, you hear a third tone
>called a difference tone.
> So far as I know, the word "hear" is very important because (so far
>as I have read) a difference tone is manufactured by flesh in the human
>ear, not by interference or summation of sound waves outside of the ear.
>(See Arhur Benade, "Horns, Strings, and Harmony, Chapter IV, pg. 80+ in
>the Dover paperback edition.)
> I don't think that the insides of a tuner manufacture a difference
>tone, and therefore the tuner won't "hear" a difference tone..... but I
>could be wrong.

You may be misreading Benade or something, but I don't think things like
wall-shaking resultant bass organ notes would work if summation of sound
waves was not purely a matter of physics. Nor would standing waves cause
any problems. A difference tone does not need to be manufactured; it
exists in the air, as surely as two pebbles dropped in a pond will cause
interfering waves in the water.

Bill Hausmann
451 Old Orchard Drive
Essexville, MI 48732 ICQ UIN 4862265

If you have to mic a saxophone, the rest of the band is TOO LOUD!

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