[PD] No "voltage-controlled" lowpass filter?

[Ed Kelly]

--- On Thu, 18/2/10, cyrille henry <ch at chnry.net> wrote:
> and lot's more with externals...

...although don't use bsaylor/svf~ and moog~ which both cause denormal errors on modern computers (and your audio siezes up)

ed

> 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...
> 
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