They're quite different. bp~ is the cheapest possible bandpass filter (as far as I know). vcf~ is a one-pole complex filter whose outputs are the real and imaginry parts. The real part may be used as a resonant bandpass filter and the imaginary as a resonant low-pass filter, but they can be combined to make other possibilities.
It's possible to graph their frequency responses using the help patch "H10.measurement.pd' in 3.audio.examples. cheers Miller On Sat, Apr 12, 2014 at 04:28:11AM -0300, Alexandre Torres Porres wrote: > Hi there, who can confirm that both [bp~] and [vcf~] are exactly the really > same thingy? The code looks quite different... > > Moreover, why the two outlets for vcf~? Help doesn't say anything. > > Thanks > _______________________________________________ > Pdfirstname.lastname@example.org mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list _______________________________________________ Pdemail@example.com mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list