[1] gives the magnitude frequency response given the biquad coefficents, and it linked to from several places around the net. Is this the sort of thing you're looking for?
[1] http://bit.ly/eFck4j -s On Sun, Feb 6, 2011 at 6:12 PM, Hans-Christoph Steiner <h...@at.or.at> wrote: > > I've started to write a GUI for generating biquad coefficients (something > like Max/MSP's [filtergraph~]). I've gotten the GUI interaction working > well, now I'm looking for the algorithms for generating a plot of the > frequency response of a given set of biquad coefficents? It'll end up being > Tcl, but I can easily read C, Csound, Java, Perl, Python, etc. > > .hc > > ---------------------------------------------------------------------------- > > All mankind is of one author, and is one volume; when one man dies, one > chapter is not torn out of the book, but translated into a better language; > and every chapter must be so translated.... -John Donne > > > > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list