[PD] how to change bp~ frequency at sample rate?

Mike Moser-Booth mmoserbooth at gmail.com
Mon Oct 10 04:23:12 CEST 2011

On Fri, Sep 2, 2011 at 2:07 PM, Roman Haefeli <reduzent at gmail.com> wrote:
> According to its helpfile, [vcf~ ] is the same as [bp~ ], but with a
> voltage controlled aka signal rate inlet for frequency.

They're not the same. Stick them in H10.measurements, and you'll see
that the center frequency of [bp~] can go above 1, while [vcf~] seems
to normalize the center frequency. There's also a considerable phase
difference. Try making a notch filter by subtracting the filtered
signal from the unfiltered signal, and you'll see that [vcf~] looks
like a notch, while [bp~]...not so much.


> Roman
> _______________________________________________
> Pd-list at iem.at mailing list
> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list

Mike Moser-Booth
mmoserbooth at gmail.com

More information about the Pd-list mailing list