[PD] Filter design from scratch
hans at eds.org
Mon Aug 22 06:41:56 CEST 2005
IEM has a lot of abstractions that implement various filters, that
would be a good starting place. Or Guenter's objects to do the
calculations for [biquad~].
On Aug 12, 2005, at 4:10 AM, Chris McCormick wrote:
> I am a total filter-tech newbie, and I need a filter with the following
> specifications, preferably using [czero~] and [rpole~] and their
> pd-builtins ilk:
> * Lowpass filter
> * -18 dB per octave rolloff
> * Does not self-oscillate
> * Bipolar (cutoff can be modulated positively or negatively)
> * Adjustable cutoff, and resonance
> Any tips? Anyone love designing filters in PD so much that they want to
> do it for me? Perhaps somebody can point me at a document to help me
> started? I've already had a look at Miller's book, but before I spend
> so many nights revisiting long forgotten complex number mathematics I
> thought I'd check the list.
> Best regards,
> chris at mccormick.cx
> PD-list at iem.at mailing list
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There is no way to peace, peace is the way.
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