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class:: PlazyEnvirN
summary:: instantiate new patterns from a function
related:: Classes/Plazy, Classes/PlazyEnvir, Classes/Pfunc
categories:: Streams-Patterns-Events>Patterns>Function
description::
Evaluates a function that returns a pattern and embeds it in a stream. In difference to link::Classes/Plazy::, the function is evaluated using the environment passed in by the stream. In difference to link::Classes/PlazyEnvir::, PlayzEnvirN expands to strong::multiple parallel patterns:: if the function arguments receive multiple channels. In difference to link::Classes/PlazyEnvir::, this works only with event streams.
ClassMethods::
method::new
argument::func
A link::Classes/Function:: that returns a pattern or any other valid pattern input.
Examples::
code::
(
SynthDef(\help_sinegrain,
{ arg out=0, freq=440, sustain=0.05, pan=0;
var env;
env = EnvGen.kr(Env.perc(0.01, sustain, 0.2), doneAction:2);
Out.ar(out, Pan2.ar(SinOsc.ar(freq, 0, env), pan))
}).add;
a = PlazyEnvirN({ arg g=0, h=0, dur=1;
postf("g: %, h: %, dur: %\n", g, h, dur);
Pbind(
\instrument, \help_sinegrain,
\dur, dur,
\degree, Pseq([g, g, h, g, h], 2)
)
});
)
// different variants
(a <> (g: 0, h: 3, dur:0.2)).play; // single stream
(a <> (g: [0, 4], h: [3, -1], dur:0.2)).play; // same durations, two streams
(a <> (g: [0, 4], h: [3, -1], dur: [0.2, 0.3])).play; // different durations, two streams
::
For more about the composition operator code::<>:: see: link::Classes/Pchain::.
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