this isn't 100% exactly what you are asking about, but it describes PCM
(Pulse Code Modulation) and sampling rate problems which are more than
likely the culprits here.
http://www.scena.org/lsm/sm7-2/dvd-en.html
Hope this helps.
-somrux.
http://www.somrux.com
----- Original Message -----
From: "nat hawks" <natbot@hotmail.com>
To: <zacharymastoon@hotmail.com>; <gollum@videotron.ca>;
<idm@hyperreal.org>; <microsound@hyperreal.org>
Sent: Friday, November 02, 2001 1:38 PM
Subject: Re: [idm] High-pitched hum in samples (was : in Pierre Henry CD)
quoted 3 lines the same thing happened to me the other day when i used soundedit to pitch
> the same thing happened to me the other day when i used soundedit to pitch
> down a ghetto casio drum track... and if it's anything like the tone you
> got, it's pretty annoying and unfortunately high in the mix (yes, i did
what
quoted 3 lines i could with the eq).
> i could with the eq).
>
> so, what's up with this, oh wise science bots?
----- Original Message -----
quoted 6 lines From: "zachary mastoon" <zacharymastoon@hotmail.com>
> >From: "zachary mastoon" <zacharymastoon@hotmail.com>
> >To: idm@hyperreal.org
> >actually, this reminds me of something i have been wondering about... for
> >those of you who digitally sample compact discs (or perhaps vinyl- i
> >haven't
> >noticed), you will know what i'm talking about: when you pitch down
certain
quoted 7 lines samples even slightly, this real high pitched tone is uncovered. is this
> >samples even slightly, this real high pitched tone is uncovered. is this
> >something from analog recording, like some weird inaudible pitch on the
> >tape
> >or something?
> >
> >thx,
> >zak.
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