2011/2/6 Hans-Christoph Steiner hans@at.or.at:
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.
Hey Hans,
Take a look in the wslib SC Quarks, it is implemented there.