[sdiy] Re: IIR and FIR

[Scott Gravenhorst]

>Veronica Merryfield wrote:
>I have used IIR filters going back 20 years now even on a poor 6Mhz
>Z80 and they do resonate. FIRs don't resonate but IIRs do - it's why
>they are called Infinite Impulse Response . I can some code somewhere
>in my archive for taking cutoff frequency and resonance and producing
>the parameters which I can try to find if required but there are
>examples on the web.

Are these sweepable filters?  

I'm interested in a frequency sweepable IIR with controllable resonance.  I.e., are they an acceptable alternative to an SVF?  

An SVF sounds very good to me, but does have high sample rate demands.

-- ScottG

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-- Scott Gravenhorst
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