[PD] pd filter with pole and zero

Roman Haefeli reduzierer at yahoo.de
Sat Nov 24 04:05:28 CET 2007

hi cyrille

i am glad to hear that someone has similar thoughts. i would love to
have some filter abstractions based on pd's built-in elementary filters.
however, my understanding is far too limited to create them myself. 

i once ported and adapted a peakfilter from millers examples into pdmtl
abs (are they now part of pd-extended, actually?). it is called 


the sig stands for audio frequency inlet and audio q inlet. especially
modulating the q parameter with a signal is fun. 

to hear it in action (besides a lot of other modulations):


On Fri, 2007-11-23 at 20:54 +0100, cyrille henry wrote:
> hello,
> i know there is a lot's of filter externals available for pd, but i'd like to use some using rpole~ / cpole~ etc.
> my main motiviations are : 
> 1) i don't like using externals
> 2) this object allow an audio control of the cutoff frequency
> as there is not a lot's of exemples, i'd like to know if anyone used this objects to make good filter abstraction.
> or anyone have references in order to disign filter?
> (i'm looking for a low pass resonant filter by exemple)
> thanks
> Cyrille
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