69 lines
1.3 KiB
Text
69 lines
1.3 KiB
Text
class:: Psetpre
|
|
summary:: set values of one key in an event before it is passed up
|
|
related:: Classes/Pset, Classes/Psetp
|
|
categories:: Streams-Patterns-Events>Patterns>Filter
|
|
|
|
description::
|
|
|
|
Sets a value in an event, before it is passed up the stream. To set the value after it has been passed to the stream, use link::Classes/Pset::.
|
|
code::
|
|
(
|
|
var a, b;
|
|
a = Psetpre(\freq, 801, Pbind(\dur, 0.5));
|
|
x = a.asStream;
|
|
9.do({ x.next(Event.new).postln; });
|
|
)
|
|
::
|
|
|
|
ClassMethods::
|
|
|
|
method::new
|
|
|
|
argument::name
|
|
the key
|
|
|
|
argument::value
|
|
can be a pattern or a stream. The resulting stream ends when that incoming stream ends.
|
|
|
|
argument::pattern
|
|
the pattern
|
|
|
|
Examples::
|
|
|
|
code::
|
|
//Psetpre does not override incoming values:
|
|
|
|
(
|
|
var a, b;
|
|
a = Psetpre(\freq, 801, Pbind(\freq, 108));
|
|
x = a.asStream;
|
|
9.do({ x.next(Event.new).postln; });
|
|
)
|
|
|
|
|
|
(
|
|
var a, b;
|
|
a = Psetpre(\freq, Pseq([401, 801], 2), Pbind(\dur, 0.5));
|
|
x = a.asStream;
|
|
9.do({ x.next(Event.new).postln; });
|
|
)
|
|
|
|
|
|
//sound example
|
|
|
|
(
|
|
SynthDef(\sinegrain,
|
|
{ arg out=0, freq=440, sustain=0.02;
|
|
var env;
|
|
env = EnvGen.kr(Env.perc(0.001, sustain), 1, doneAction: Done.freeSelf);
|
|
Out.ar(out, SinOsc.ar(freq, 0, env * 0.1))
|
|
}).add;
|
|
)
|
|
|
|
(
|
|
a = Pbind(\dur, 0.5, \instrument, \sinegrain);
|
|
a = Psetpre(\freq, Pseq([500, 600, 700], inf), a);
|
|
a = Psetpre(\legato, Pseq([0.01, 1],inf), a);
|
|
a.play;
|
|
)
|
|
::
|