136 lines
3.7 KiB
Text
136 lines
3.7 KiB
Text
title:: play
|
|
summary:: Start a process
|
|
categories:: Common methods
|
|
|
|
method:: play
|
|
The code::play:: message is of common use in sc. Different objects respond to it in various
|
|
ways, but the simple meaning is: strong::start a process::.
|
|
It is usually implemented by objects in contributed libraries as well.
|
|
|
|
play usually returns the playing object which might not be the same as the one
|
|
the message was sent to.
|
|
|
|
opposite: code::stop::
|
|
|
|
section:: Clocks, Routines, Streams and Patterns
|
|
For a full list of which classes that implements code::play::, see link::Overviews/Methods#play::
|
|
|
|
subsection:: clock.play (stream)
|
|
returns: the clock
|
|
code::
|
|
(
|
|
r = Routine.new({ "...playing".postln; 1.wait; "ok, that was it".postln });
|
|
SystemClock.play(r);
|
|
)
|
|
::
|
|
See link::Classes/Clock#*play::
|
|
|
|
subsection:: routine.play (clock)
|
|
returns: the routine
|
|
code::
|
|
Routine.new({ "...playing".postln; 1.wait; "ok, that was it".postln }).play;
|
|
::
|
|
See link::Classes/Routine#-play::
|
|
|
|
subsection:: stream.play (clock)
|
|
returns: the stream
|
|
|
|
the stream will loop until it returns nil
|
|
code::
|
|
FuncStream({ "ok, that was it".postln; 1 }).play;
|
|
::
|
|
See link::Classes/FuncStream#-play::
|
|
|
|
subsection:: pausestream.play (clock) / task.play (clock)
|
|
returns: the stream
|
|
code::
|
|
a = PauseStream.new(FuncStream.new({ "ok, that was it".postln; 1 }));
|
|
a.play;
|
|
a.stop;
|
|
a.play;
|
|
a.stop;
|
|
|
|
a = Task.new({ loop({ "ok, that was it".postln; 1.wait; }) });
|
|
a.play;
|
|
a.stop;
|
|
::
|
|
See link::Classes/Stream#-play:: and link::Classes/Task#-play::
|
|
|
|
subsection:: pattern.play (clock, protoEvent)
|
|
returns: an link::Classes/EventStreamPlayer::
|
|
code::
|
|
(
|
|
Pseq([
|
|
Pbind(\freq, Pn(500, 1)),
|
|
Pbind(\dur, Pn(0.1, 1))
|
|
], 2).play;
|
|
)
|
|
::
|
|
See link::Classes/Pattern#-play::
|
|
|
|
section:: Playing single Synths from SynthDefs on the server
|
|
|
|
The following play messages both cause a SynthDef to be written, send it to the server
|
|
and start a synth with it there.
|
|
|
|
Note that they should not be used in quickly running automated processes,
|
|
as there are more efficient alternatives ( see link::Guides/SynthDefsVsSynths:: )
|
|
|
|
subsection:: function.play (target, outbus, fadeTime, addAction, args)
|
|
|
|
returns: a link::Classes/Synth::
|
|
table::
|
|
## outbus || on what bus to play (default: 0)
|
|
## fadeTime || in what time to fade out when released (default: 0.02)
|
|
## addAction || where to add the node (\addToHead by default)
|
|
## args || controls to set when starting the synth
|
|
::
|
|
|
|
See link::Classes/Function#-play::
|
|
|
|
code::
|
|
a = { PinkNoise.ar([0.1, 0.1]) }.play;
|
|
a.release;
|
|
|
|
// setting argument
|
|
a = { |freq = 500| HPF.ar(PinkNoise.ar([1, 1] * 0.4), freq) }.play;
|
|
a.set(\freq, 1000)
|
|
a.release;
|
|
|
|
// passing argument with play:
|
|
a = { |freq = 500| HPF.ar(PinkNoise.ar([1, 1] * 0.4), freq) }.play(args: [\freq, 10000]);
|
|
|
|
// note that you can use Out ugens but you do not need to
|
|
{ Out.ar(1, PinkNoise.ar(0.1)) }.play;
|
|
{ XOut.ar(0, MouseX.kr(0,1), PinkNoise.ar(0.1*[1,1])) }.play; // mouse x controls level
|
|
::
|
|
|
|
subsection:: synthDef.play (target, args, addAction)
|
|
returns: a link::Classes/Synth::
|
|
|
|
Note that you need an out ugen to hear the result.
|
|
Examples of how to write to the busses in the helpfiles: link::Classes/Out:: / link::Classes/ReplaceOut:: / link::Classes/XOut:: / link::Classes/OffsetOut::
|
|
|
|
Nevertheless, synths can also run without any writing activity: (see e.g. link::Classes/SendTrig::)
|
|
|
|
Some operations provide an out ugen internally: see for example code::function.play::, which plays out
|
|
to a bus number provided in the argument passed to code::.play::
|
|
|
|
code::
|
|
(
|
|
x = SynthDef("test", { arg out, amp=0.1;
|
|
var sound;
|
|
sound = PinkNoise.ar(amp * [1,1]);
|
|
Out.ar(out, sound);
|
|
}).play;
|
|
)
|
|
|
|
//set the synth
|
|
x.set(\amp, 0.2);
|
|
//free the synth
|
|
x.free;
|
|
::
|
|
See link::Classes/SynthDef#-play::
|
|
|
|
note:: code::Synth.play(function):: is synonymous, for backwards compatibility with sc2 ::
|
|
|