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Date: Mon, 18 Jan 1999 14:10:00 +0000
From: "P.J.Leonard" <P.J.Leonard@bath.ac.uk>
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Subject: Re: RTLinux/ALSA mix
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Thomas Sailer wrote:
> 
> Benjamin GOLINVAUX wrote:
> 
> > The very first goal of these drivers could be a simple FFT-based frequency
> > shifting echoed back to the card output... I'd like to have the app work
> > fine, even under high disk activity or heavy graphics or network load...
> 
> Ugh. For spectrum shifting the FFT is rather unsuitable. Better
> use a (complex) oscillator, mixer and appropriate filters.

 By oscillator do you mean a resonant filter ? If you need a whole
bank of these then it is going to get slow  . . . . for real time stuff
?
LPC analysis / synthesis may be worth a look ?



-- 
 Cheers Paul.                                        
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  Tel: +44 1225 826108
  Fax: +44 1225 826305
snail: P.J.Leonard
       Applied Electromagnetic Research Centre
       Bath University,
       BATH, UK   BA2 7AY

