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Subject: Re: Acoustic Feedback reduction
Organization: Nobody nowhere
X-Newsreader: Microsoft Outlook Express 6.00.2720.3000
Date: Sat, 11 Jan 2003 14:58:29 -0000
NNTP-Posting-Date: Sat, 11 Jan 2003 15:04:55 GMT
"Phil Allison" wrote in message
> "g0mem" wrote in message
> Phil wrote:
> > > ** Usually a positive shift of from 2 to 5 Hz is used- this is
> > virtually undetectable on speech aand most music too.
> > > ............ Phil
> > Well the musicians playing the instruments would certainly notice it.
> > Especially when there are 'miked' acoustic instruments involved. They
> > here there own instruments acoustically, and the sound of the PA
> > sharp at the same time. 5Hz is a lot expecially when it comes to piano
> > tuning.
> ** You have not tried it - what you say does *not* happen. If you
> direct and shifted signals you get beats - loud and clear. If you delay
> the shifted signal by even 3 mS the beats are destroyed. As the PA
> are more than 1 metre away from the performer.......
I've proved it here with pitch shifting in the past with real instuments.
Whats the delay got to do with it??
> One can try this out with a shifyter and a digital delay - it is
> quite astonishing.
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