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Re: Digital stereo synth

Subject: Re: Digital stereo synth
From: Wild Sanctuary <>
Date: Mon, 15 Nov 2004 09:08:54 -0800
>
>Waves, I think, either have a plug-in for synthesising stereo from a mono
>source, or a setting for their Q10 graphic EQ. Either way, what it does is
>split the frequency bands of the sound between 2 channels (ie band 1 to
left, band 2 to right, etc).

>
>Have you tried this technique? I've never experimented but would expect this
>to generate an illusion of space in the recording at the expense of audio
>fidelity - which may or may not sound OK. Might work for an installation
>where the 'feel' is more important than absolute frequency integrity.
>
>Geoff.


Yeah. Sure have tried it, Geoff. Robert Orban, a friend and colleague 
whose signal-processing product we used to represent world-wide, 
developed a stereo synth that was the best I've heard, so far. It 
divided the spectrum into five bands splitting out the "evens" to one 
side (channel) and the "odds" to the other. At each crossover point, 
he introduced a 90 degree phase shift. The spread was continuously 
variable and the effect is certainly credible. In addition, one could 
sum the right and left channels back into a mono output without the 
phase problems inherent in other comb filter systems. I still have 
one of the prototypes he developed and occasionally use it. However, 
for this material, I would need something way more robust and 
convincing.

Bernie

>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>


-- 

Wild Sanctuary, Inc.
P. O. Box 536
Glen Ellen, California  95442-0536
Tel: (707) 996-6677
Fax: (707) 996-0280
http://www.wildsanctuary.com


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