Article View: comp.dsp
Article #27Re: Stereo separation of a mono signal
From: Ed Hall
Date: Thu, 29 Oct 1992 11:57
Date: Thu, 29 Oct 1992 11:57
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In article <1992Oct29.080645.2580@odin.corp.sgi.com> gints@prophet.esd.sgi.com (Gints Klimanis) writes: >In article <3936@randvax.rand.org>, edhall@rand.org (Ed Hall) writes: >|> Look in "Musical Application of Microprocessors," 2nd Ed. (by Hal >|> Chamberlin, Hayden Books, 1985, ISBN 0-8104-5768-7) for some practical, >|> non-mathematical material on the subject (and on stereo, too). Some of > >The book is an excellent starter. However, I remember the filter >coefficient equations contained a chock full o' errors. There are a few errors, including some typos which have been corrected in the second edition. Nothing which would lead someone too far astray. BTW, although constant power panning is probably best for this particular application, it is not the only "proper" way. For example, if the sounds are to be arranged in a /straight line/ in front of the listener things get a bit more complicated; constant power moves the apparent sound source in an arc. There is nothing here which doesn't fall out of some trig and the inverse square law, but I've heard more than one recording where this simple fact seems to have been forgotten. But in the teleconferencing case, a "round table" seems appropriate. Thanks for correcting my oversimplification (which would create a bit of a "hole in the middle"). -Ed Hall edhall@rand.org
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Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!usc!randvax!edhall From: edhall@rand.org (Ed Hall) Newsgroups: comp.dsp Subject: Re: Stereo separation of a mono signal Message-ID: <3937@randvax.rand.org> Date: 29 Oct 92 11:57:48 GMT References: <dfrankow.720325401@myria> <3936@randvax.rand.org> <1992Oct29.080645.2580@odin.corp.sgi.com> Sender: news@randvax.rand.org Organization: RAND Lines: 26 Nntp-Posting-Host: ives.rand.org