[PD] No "voltage-controlled" lowpass filter?
cyrille henry
ch at chnry.net
Fri Feb 19 00:52:46 CET 2010
hello,
there is a lot of discussion about filter in this list.
if you wish to build filter with vanilla object, you can build yours with pole~ and zero~ objects.
you can also use biquad~ object.
you can also use expr~ to make an equivalent of my bq~ object and use my abstraction to compute coeficients.
and there is certainly lot's of other possibility with pure vanilla pd...
and lot's more with externals...
c
Matteo Sisti Sette a écrit :
> Hi,
>
> Is vcf~ (which is bandpass) the only available type of signal-controlled
> (smoothly-changing) filter? Doesn't the "voltage-controlled" version of
> lop~ and hip~ exist? Is it for a "mathematical" reason? (i.e.
> impossibility to implement in a relatively simple way)
>
> Or is it because it is trivial to "build" it in PD? If so, how?
>
> And if not, how would you "approximate" it, that is create in PD
> something similar to a simple low-pass filter whose cutoff frequency is
> controlled by a signal?
>
> thanks
> m.
>
> P.S. of course I'm talking about PD Vanilla...
More information about the Pd-list
mailing list