61 lines
995 B
Text
61 lines
995 B
Text
|
#lang scribble/manual
|
||
|
|
@(require (for-label racket))
|
||
|
|
|
||
|
|
@title{BRF}
|
||
|
|
2nd order Butterworth band reject filter.@section{related}
|
||
|
|
Classes/BPF, Classes/HPF, Classes/LPF
|
||
|
|
@section{categories}
|
||
|
|
UGens>Filters>Linear
|
||
|
|
|
||
|
|
|
||
|
|
@section{description}
|
||
|
|
|
||
|
|
|
||
|
|
A second order band reject filter.
|
||
|
|
|
||
|
|
|
||
|
|
@section{classmethods}
|
||
|
|
|
||
|
|
|
||
|
|
@section{method}
|
||
|
|
ar, kr
|
||
|
|
|
||
|
|
@section{argument}
|
||
|
|
in
|
||
|
|
|
||
|
|
The input signal.
|
||
|
|
|
||
|
|
|
||
|
|
@section{argument}
|
||
|
|
freq
|
||
|
|
|
||
|
|
Cutoff frequency in Hertz.
|
||
|
|
WARNING: due to the nature of its implementation frequency values close to 0 may cause glitches and/or extremely loud audio artifacts!
|
||
|
|
|
||
|
|
@section{argument}
|
||
|
|
rq
|
||
|
|
|
||
|
|
The reciprocal of Q (bandwidth / cutoffFreq).
|
||
|
|
|
||
|
|
|
||
|
|
@section{Examples}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
@racketblock[
|
||
|
|
{ BRF.ar(Saw.ar(200,0.1), FSinOsc.kr(XLine.kr(0.7,300,20),0,3800,4000), 0.3) }.play;
|
||
|
|
|
||
|
|
{ BRF.ar(Saw.ar(200,0.5), MouseX.kr(100, 10000, 1), 0.3) }.play;
|
||
|
|
|
||
|
|
|
||
|
|
// BRF on control signals:
|
||
|
|
(
|
||
|
|
{ var vib = BRF.kr(SinOsc.kr([1, 3, 10], 0, [1, 0.5, 0.25]).sum, MouseX.kr(1, 10, 1), 0.3);
|
||
|
|
SinOsc.ar(vib * 200 + 600) * 0.2 }.play;
|
||
|
|
)
|
||
|
|
::
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
|