[LAD] stereospread.lv2 - Stereo spreading plugin (conjugate random phase all-pass filter pair)

Fons Adriaensen fons at linuxaudio.org
Fri Nov 18 17:35:54 CET 2022

On Fri, Nov 18, 2022 at 05:28:15PM +0100, Fons Adriaensen wrote:
> Create a filter, using an inverse FFT, that doesn't modify the phase
> but just has some random gain between -1 and +1 in each frequency bin.

Things could work as well with some completely random FIR filter 
and without the delay.

The trick is is that adding something for L and subtracting the same
for R will always result in the sum being equal to 2 * the input.



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