BPeakEQ parametric equalizer.

BPeakEQ.ar(in, freq, rq, db, mul, add)

in - input signal to be processed

freq - center frequency.

rq - the reciprocal of Q.  bandwidth / cutoffFreq.

db - boost/cut the center frequency (in dBs).

The B equalization suite is based on the Second Order Section (SOS) biquad UGen.

note: Biquad coefficient calculations imply certain amount of CPU overhead. These plugin UGens contain optimizations such that the coefficients get updated only when there has been a change to one of

the filter's parameters. This can cause spikes in CPU performance and should be considered when using several of these units.

see also: SOS, BLowPass, BLowPass4, BHiPass, BHiPass4, BLowShelf, BHiShelf, BBandPass, BBandStop, BAllPass.

s.boot;

(

z = { // toy with boost/cut

BPeakEQ.ar(

SoundIn.ar([0,1]),

MouseX.kr(20,20000,\exponential),

0.8,  // rq

MouseY.kr(12.0, -12.0, \linear),

0.5); // mul

}.play)

z.release;

(

z = { // toy with rq

BPeakEQ.ar(

SoundIn.ar([0,1]),

MouseX.kr(20,20000,\exponential),

MouseY.kr(10, 0.4, \linear),  // rq

6, // boost/cut - +6dB

0.5); // mul

}.play)

z.release;