SuperCollider CLASSES

LPF

2nd order Butterworth lowpass filter
Inherits from: Filter : PureUGen : UGen : AbstractFunction : Object
Subclasses: HPF

Description

A second order low pass filter.

Class Methods

*ar (in: 0, freq: 440, mul: 1, add: 0)

*kr (in: 0, freq: 440, mul: 1, add: 0)

Arguments:

in

The input signal.

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!

mul

Output will be multiplied by this value.

add

This value will be added to the output.

Inherited class methods

Instance Methods

Inherited instance methods

Examples

{ LPF.ar(Saw.ar(200,0.1), SinOsc.kr(XLine.kr(0.7,300,20),0,3600,4000)) }.play;

// kr:
(
{ var ctl = LPF.kr(LFPulse.kr(8), SinOsc.kr(XLine.kr(1, 30, 5)) + 2);
    SinOsc.ar(ctl * 200 + 400)
}.play;
)

(
{ var ctl = LPF.kr(LFPulse.kr(8), MouseX.kr(2, 50, 1));
    SinOsc.ar(ctl * 200 + 400)
}.play;
)