[PD] algorithms for drawing filter response curves

[Spencer Russell]

[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 <hans at 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
>
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