[PD] can [bp~] be obtained with biquad coefficients?
grib at billgribble.com
Wed Apr 9 02:28:28 CEST 2014
The quick and dirty way is just to feed the filter white noise and plot the
output signal's spectrum. Guaranteed to show the actual performance of
the filter, and not somebody's idea of how it ought to be working.
If you need a theoretical curve, I'd start with a look at the [bp~] source
to see if you can extract some hints about how the filter is implemented.
It may be quite easy to figure out the poles and zeros if the code is clear
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