[PD] algorithms for drawing filter response curves

[Mike Moser-Booth]

Sorry, sent that a little too quickly. I should've also mentioned that
fc=cutoff frequency and Fs=sample rate. And the magnitude of the
result will give the magnitude frequency response and the angle will
give the phase response.

.mmb

On Monday, February 7, 2011, Mike Moser-Booth <mmoserbooth at gmail.com> wrote:
> I don't know if this is what you're asking, but iirc it's really just
> a matter of substituting exp(j*2*pi*fc/Fs) for z in the transfer
> function. I can send a Pd patch illustrating it later, if you like.
>
> .mmb
>
> On Sunday, February 6, 2011, 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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>>
>>
>>
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>
> --
> Mike Moser-Booth
> mmoserbooth at gmail.com
>

-- 
Mike Moser-Booth
mmoserbooth at gmail.com