StandardL : StandardN : ChaosGen : UGen : AbstractFunction : Object

Description

A linear-interpolating sound generator based on the difference equations:

    x(n+1) = (x(n) + y(n+1)) % 2pi
    y(n+1) = (y(n) + k * sin(x(n))) % 2pi

The standard map is an area preserving map of a cylinder discovered by the plasma physicist Boris Chirikov.

sclang code translation:( var k = 1, xi = 0.5, yi = 0, size = 64; plot(size.collect { yi = yi + (k * sin(xi)) % 2pi; xi = (xi + yi) % 2pi; xi - pi * 0.3183098861837907 }); )

(

var k = 1, xi = 0.5, yi = 0, size = 64;

plot(size.collect { yi = yi + (k * sin(xi)) % 2pi; xi = (xi + yi) % 2pi; xi - pi * 0.3183098861837907 });

)

Class Methods

StandardL.ar(freq: 22050, k: 1.0, xi: 0.5, yi: 0, mul: 1.0, add: 0.0)

Inherited class methods

Instance Methods

Inherited instance methods

Examples

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// vary frequency

{ StandardL.ar(MouseX.kr(20, SampleRate.ir)) * 0.3 }.play(s);

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// mouse-controlled param

{ StandardL.ar(SampleRate.ir/2, MouseX.kr(0.9,4)) * 0.3 }.play(s);

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// as a frequency control

{ SinOsc.ar(StandardL.ar(40, MouseX.kr(0.9,4))*800+900)*0.4 }.play(s);