(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)<br><br>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&#39;t find anything in the help files indicating that they&#39;re different other than using control vs. signal for the center frequency, so what&#39;s the deal?  How do I replace a non-varying [vcf~] with a [bp~] that sounds the same?<br>
<br>--Stefán<br>