[PD] feedback stability..?
Damian Stewart
damian at frey.co.nz
Mon Sep 15 22:18:45 CEST 2008
hey pd,
i'm trying to do feed forward in pd. i think i'm tired and not thinking
this through...
so, i have a [blackbox~] that does stuff to the audio. it uses feedback
internally and is currently a bit unstable. can i make it more stable by
going like this:
[...] [r~ fb]
| |
| [*~ -0.1]
| ______/
|/
[blackbox~]
|\______
| \
| [s~ fb]
|
[...]
is there some funky combination of delays i can achieve this? i get the
feeling this only works in analog electronics because you can say that on
some level everything happens at exactly the same time - the delays
inherent in digital systems mean that this doesn't work...
what alternative DSP techniques are there for damping unstable feedback loops?
thanks
d
--
damian stewart | skype: damiansnz | damian at frey.co.nz
frey | live art with machines | http://www.frey.co.nz
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