[PD] butterworth/chebyshev/etc in biquad?
claude at mathr.co.uk
Mon Dec 15 16:41:45 CET 2014
On 15/12/14 14:49, Alexandre Torres Porres wrote:
> Do any of you know if they're Butterworth or what?
I'm not sure how much difference it makes for low-order filters (biquad
has 2 poles and 2 zeros). The differences really matter more for higher
order filters, say 8 poles or more...
You could waste time calculating coefficients for a biquad cascade (the
process is quite involved - see the mkfilter package online), but I'd
just use the ones already made in iemlib...
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