Path: utzoo!attcan!uunet!munnari.oz.au!mullian!gja
From: gja@mullian.ee.mu.oz.au (Grenville Armitage)
Newsgroups: sci.electronics
Subject: Re: ..but what about _output_ filtering for D/A's?
Message-ID: <5877@munnari.oz.au>
Date: 26 Oct 90 06:52:09 GMT
References: <1319@beguine.UUCP> <17660121@hpfcdj.HP.COM>
Sender: news@cs.mu.oz.au
Reply-To: gja@mullian.ee.mu.OZ.AU (Grenville Armitage)
Organization: Basket Weavers, Inc.
Lines: 14

In article <17660121@hpfcdj.HP.COM> myers@hpfcdj.HP.COM (Bob Myers) writes:
>Wait just a minute, John.  As SOUND, the answer to this question is *no*.
>You will not, for example, hear a 1000 Hz tone when exposed to *sound sources*
>of, say, 20 kHz and 21 kHz.  The ear doesn't work that way.

Hmmm. Try telling that to guitar players who
tune their instruments by ear. At least one technique
I know of (and use) involves listening for the 'beat' notes
as you tune each higher string to a harmonic of the previous
string.

And this works at quite low volumes too.....

gja