Reply-To: "Kevin Aylward"
From: "Kevin Aylward"
References: <email@example.com> <3DC634B7.C303BC8E@scazon.com> <3DC78479.F3CEC5FB@scazon.com>
Subject: Re: Bullshit wins v. science
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Date: Tue, 5 Nov 2002 08:51:09 -0000
NNTP-Posting-Date: Tue, 05 Nov 2002 08:51:15 GMT
"Paul Burke" wrote in message
> John Woodgate wrote:
> > Strictly, that is 'polarity', not phase. Only a small percentage of
> > people can hear it. The difference is said by those who can to be
> > subtle. It should occur with male voices, as well, since the
> > are somewhat unsymmetrical. But most audio processing and most
> > loudspeakers introduce phase shifts that tend to mask the polarity
> > effect.
> I once attended a demonstration (by BBC engineers) in which a piece of
> music was being played, and suddenly they reversed the phase. The
> of virtually everyone in the audience suddenly turned, in the same
> direction. So, it would seem that most people are sensitive, but to
> dynamics of the phase, not the static relationships.
Yes. As I noted elsewhere, changing phase is phase modulation that
generates a spectrum of frequencies, much like FM.
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