[PD] filtering: a lowpass resonant filter

[Damian Stewart]

Damian Stewart wrote:
> can anyone point out to me a nice pure-pd resonant lowpass filter?
> 
> the only lowpass filter i know about is vcf_lp2~ from iemlib, but i can't 
> use iemlib in the project i'm working on.
> 
> so - how do i make a resonant lowpass resonant filter? can i chain two 
> biquad~s together? or is there some other trick?
> 
> thanks
> d
> 

to answer my own question:
use [biquad~] with coefficients taken from the [lowpass] external.

now, to turn the [lowpass] external into pure-pd...

-- 
damian stewart | +31 6 5902 5782 |  damian at frey.co.nz
frey | live art with machines | http://www.frey.co.nz