rsc3/doc-schelp/HelpSource/Classes/Pclutch.scrbl

57 lines
1.1 KiB
Racket

#lang scribble/manual
@(require (for-label racket))
@title{Pclutch}
sample and hold a pattern@section{related}
Classes/StreamClutch, Classes/Pstutter, Classes/Latch
@section{categories}
Streams-Patterns-Events>Patterns>Repetition
@section{ClassMethods}
@section{method}
new
@section{argument}
pattern
any pattern.
@section{argument}
connected
a pattern that returns either a series of link::Classes/Boolean::s or the equivalent 0 and 1. If true (or 1), the pattern plays as usual, if false (or 0), the previous value is kept.
@section{Examples}
@racketblock[
Pclutch(Pseq([1, 2, 3, 4, 5], 3), Pseq([0, 0, 1, 0, 0, 0, 1, 1])).asStream.nextN(10);
// 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: Done.freeSelf);
Out.ar(out, SinOsc.ar(freq, 0, env))
}).add;
)
(
var a;
a = Pclutch(
Pseq([1, 2, 3, 4, 5], inf),
Pseq([0, 0, 1, 0, Pn(0, {30.rand}), 0, 1, 1], inf)
).asStream;
{
loop {
Synth(\help_sinegrain, [\freq, a.next * 200 + 200]);
0.02.wait;
}
}.fork;
)
::
]