[PD] Building a compressor in PD?

[Chuckk Hubbard]

On Nov 28, 2007 2:08 AM, Vreahli the Audio Bandit <vreahli at gmail.com> wrote:
> Heya - I'm just curious - is it even possible to build a compressor in PD
> without coding it in C? The only way I can think of getting the overall
> loudness of a signal is by checking audio rate stuff - which won't work with
> control rate values. Just a curiosity. :)

[env~] gives such a level at control rate.
It's also possible to re-block~ a subpatch to 1, calculate whatever
average or level you like there, and pass it out; then [bang~] in the
containing patch will grab a value from it once per block.
It wouldn't be hard to have an audio-rate rms or peak calculator, then
use [bang~] and [snapshot~] to read it, if [env~] isn't good enough
for you.

-Chuckk

-- 
http://www.badmuthahubbard.com