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From: tarr-michael@YALE.EDU (michael tarr)
Newsgroups: rec.audio.high-end
Subject: Re: The Importance of Phase/Timing Info & Carver
Message-ID: <21997@cs.yale.edu>
Date: 10 Apr 90 13:07:10 GMT
References: <5013382@ub.cc.umich.edu>
Sender: news@uwm.edu
Reply-To: tarr-michael@YALE.EDU (michael tarr)
Organization: Department of Psychology, Yale University
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Approved: tjk@csd4.csd.uwm.edu


Without giving a psychology lecture there are essentially three systems
by which humans perceive the location of sound (imaging):
Timing or phase differences (best for < 1500 hz)
Intensity or amplitude differences (best for > 1500 hz)
Onset and offset differences in transients (good all over)

Plus particularly around 8000 hz we can use the diffraction patterns of
our pinnae to localize.

I have seen alot of misconceptions about what is known and unknown about
human audition. For a nice readable summary get Brian Moore's
"Introduction to hearing" (academic press I think). It is about $10 in
paperback.

By the way for all the hyper hi frequency peopl -- try getting an
audiologist to measure how high you can hear -- most people over 25
can't hear any higher than 15000 hz at anything near normal listening
levels.

As for Carver -- I still think Stereophile is harder on his products
than others. And they definitely have overly friendly relationships with
some manufacturers at the expense of others.

tarr@cs.yale.edu