From alsa-devel-owner@alsa.jcu.cz  Mon Jan 18 13:47:47 1999
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Date: Mon, 18 Jan 1999 13:45:55 +0100
From: Thomas Sailer <sailer@ife.ee.ethz.ch>
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Subject: Re: RTLinux/ALSA mix
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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.

Tom

