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Klarinet Archive - Posting 000278.txt from 2001/02

From: Bill Hausmann <>
Subj: Re: [kl] Combination tones......
Date: Thu, 8 Feb 2001 18:43:28 -0500

At 09:51 AM 2/8/2001 -0500, George Kidder wrote:
>I guess what surprises me with the organ example is not that difference
>tones are produced, but that there aren't so many of them that the result
>is a mess!

The oscilloscope picture of the resultant bass wave form was somewhat more
complex than the pure tone of the Open Bass that produced it.

>BTW, the "beats" phenomenon referred to below is, as stated, amplitude
>changes only, does not generate any additional tones, and does not require
>a non-linear system.

I think what happens is that when these beats occur at a frequency within
hearing range (i.e., greater than 20 Hz) that frequency is ITSELF heard
(or, if lower, FELT) as a separate tone, rather than being identified as
individual beats.

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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