Klarinet Archive - Posting 000649.txt from 2001/02

From: Bill Hausmann <bhausmann1@-----.com>
Subj: Re: [kl] The straight path of the audio engineer
Date: Sat, 17 Feb 2001 16:58:30 -0500

At 01:38 PM 2/16/2001 +0000, Tony Pay wrote:
>Well, surprise surprise, THD is a measure of how single pure sine tones
>have harmonics added to them by nonlinearities in the amplifier (input
>frequency P has added frequencies 2P, 3P, etc in the output); and IMD is
>a measure of how two pure sine tones have sum and difference tones added
>to them by nonlinearities in the amplifier (input frequencies P and Q
>have added frequencies P+Q, P-Q in the output).
>
>So an audio engineer's mouth would probably drop open in disbelief if
>you suggested that *air itself* had such properties.

Just as a system can be designed to MIMIMIZE these non-linearities, could
not one be designed to MAXIMIZE them? I think that is, in fact, what the
resultant bass stop does.

Bill Hausmann bhausmann1@-----.com
451 Old Orchard Drive http://homepages.go.com/~zoot14/zoot14.html
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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