[PD] why do [bp~] and [vcf~] sound different?

cyrille henry cyrille.henry at la-kitchen.fr
Tue Jul 14 14:32:37 CEST 2009

Ichabod a écrit :
> (posted this on the Pd forum, but it was suggested that I e-mail the 
> list as well, so here I am out of lurk mode)
> I was working on some patches with bandpass filters that were initially 
> [vcf~], but I ended up deciding not to vary the center frequency, so I 
> replaced them with [bp~].  Now I find that [bp~] sounds different; e.g., 
> a [phasor~ 100] going through a [bp~ 440 3] sounds different from one 
> going out the left outlet of a [vcf~ 3] with [sig~ 440] going into its 
> center inlet.  I couldn't find anything in the help files indicating 
> that they're different other than using control vs. signal for the 
> center frequency, so what's the deal?  How do I replace a non-varying 
> [vcf~] with a [bp~] that sounds the same?

source code for both object look really diferent, so i don't know if it is possible.
but seriously : why do you need to replace vcf~ with bp~???


> --Stefán
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