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From: Steve_Graham@ub.cc.umich.edu
Newsgroups: rec.audio.high-end
Subject: three mikes disclaimer/psychoacoustic tricks
Message-ID: <7314@uwm.edu>
Date: 30 Oct 90 13:58:46 GMT
Sender: news@uwm.edu
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Approved: tjk@csd4.csd.uwm.edu
Originator: tjk@csd4.csd.uwm.edu

I seem to have been misread by someone last time around.  I didn't say
or mean to imply that the three-mike system of recording lacks depth:
quite the opposite.
 
I am intrigued by these new systems that are supposed to generate the
appearance of sounds coming from all sorts of directions (up/down/around)
via two speakers.  However it seems to me that the only way to do this
successfully is during recording.  I can see how directional cues could be
generated artificially (and in fact have experienced the phenomenon of having
out-of-phase sounds appear to come from somewhere behind me, via the two front
speakers--try Blade Runner for instance for Dolby surround with no extra
speakers) but I can't see how any decoder could possibly know where unprocessed
sounds are "supposed" to come from and generate the appropriate cues.