Classes | UGens > Filters > BEQSuite

BPeakEQ : BEQSuite : Filter : PureUGen : UGen : AbstractFunction : Object

Parametric equalizer
Source: BEQSuite.sc

Description

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.

Class Methods

BPeakEQ.ar(in, freq: 1200, rq: 1, db: 0, mul: 1, add: 0)

Arguments:

in

input signal to be processed.

freq

center frequency. WARNING: due to the nature of its implementation frequency values close to 0 may cause glitches and/or extremely loud audio artifacts!

rq

the reciprocal of Q. bandwidth / cutoffFreq.

db

boost/cut the center frequency (in dBs).

mul
add

Inherited class methods

Undocumented class methods

BPeakEQ.sc(dummy, freq: 1200, rq: 1, db: 0)

Instance Methods

Inherited instance methods

Examples

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;

helpfile source: /usr/local/share/SuperCollider/HelpSource/Classes/BPeakEQ.schelp
link::Classes/BPeakEQ::