Plfnoise2 Generates quadratically interpolated random values at a rate.

superclass: Pattern

Plfnoise2(nSamps, lo, hi, length)

nSamps number of samples between new random values

lo, hi lower and upper boundary of values (default: 0.0 and 1.0)

length number of values produced  (default: inf)

// example

(

var a;

a = Plfnoise2(20, 0.0, 1.0, inf);

c = a.asStream.nextN(500);

w = GUI.window.new("Plfnoise2", Rect(10, 10, 540, 800));

// plot the values

c.plot(bounds: Rect(10, 10, 520, 380), discrete: true, parent: w);

)

(

var a;

a = Plfnoise2(20, 0.0, 1.0, inf);

a.asStream.nextN(1000).plot;

)

// sound example

(

SynthDef(\help_sinegrain, 

{ arg out=0, freq=440, sustain=0.05;

var env;

env = EnvGen.kr(Env.perc(0.01, sustain, 0.2), doneAction:2);

Out.ar(out, SinOsc.ar(freq, 0, env))

}).send(s);

)

(

var a;

a = Plfnoise2(20, 0.0, 1.0, inf).asStream;

{

loop {

Synth(\help_sinegrain, [\freq, a.next * 600 + 300]);

0.02.wait;

}

}.fork;

)