Fw: [PD] about filtergraph~
mrjester at fledge.watson.org
Thu Mar 18 23:11:52 CET 2004
> Anyone does know how calculate the parameters of a biquad filter from the
> center frequencie, bandwith and quality ?
Here are two references that may help:
The first is Robert Bristow-Johnson's BiQuad "cookbook recipes" for the
various kinds of filter (such as lowpass, bandpass, highpass, shelving -
is this what you mena by "quality"?)
The second is the section of Julius Smith's Digital Filtering text on
biquads. The text as a whole is a very informative read.
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