[PD] DQ-style 3-band EQ with "kill switch" capability

[derek holzer]

Just in case anyone's curious, here's what I have so far for a DJ-style, 
3-band EQ with kill switch capability, but not so flat frequency 
crossovers. The [lowpass]/[bandpass]/[highpass] objects are from the 
GGEE lib, and their equivalent in [biquad~] specs are posted afterwards 
for those who don't have that lib installed.

BASS:
[lowpass 370 310] --> 3 x [biquad~] in series
=
3 x [biquad~  1.86972 -0.872325 0.000650245 0.00130049 0.000650245] in 
series

MIDS:
[bandpass 1175 490] --> 3 x [biquad~] in series
=
3 x [biquad~ 1.36591 -0.385279 0.307361 0 -0.307361] in series

HIGHS:
[highpass 2350 130] --> 2 x [biquad~] in series
=
2 x [biquad~ 1.63386 -0.729864 0.840931 -1.68186 0.840931] in series

There are still noticable notches in the lower and upper mids, however. 
But they work in the "musical" sense, at least for the tracks I tested 
them with, to isolate the bass, melody and hi-end percussion. Developed 
rather unscientifically using [pink~] and also some crappy German 
techno. Oompah-oompah and 4-to-the-floor, baby!

Suggestions and improvements deeply appreciated,
d.


-- 
derek holzer ::: http://www.umatic.nl
---Oblique Strategy # 7:
"Accept advice"
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