75 lines
2.2 KiB
Text
75 lines
2.2 KiB
Text
title:: Bundled Server Messages
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summary:: Sending OSC message bundles
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categories:: External Control>OSC, Server>Architecture
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related:: Guides/ServerTiming
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When using the Synth/Node/Group sclang objects there is often a need to construct bundles to send messages together. For example when you want to start a synth that should be mapped instantly to certain buses, or need to ensure that two synths start with precise synchronisation.
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The simplest way to deal with this is through Server's automated bundling support. This allows you to open a bundle into which all osc messages will be collected until it is sent. See Server for details of makeBundle's arguments.
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code::
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s.boot;
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(
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// send a synth def to server
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SynthDef("tpulse", { arg out=0,freq=700,sawFreq=440.0;
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Out.ar(out, SyncSaw.ar(freq, sawFreq,0.1) )
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}).send(s);
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)
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// all OSC commands generated in the function contained below will be added to a bundle
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// and executed simultaneously after 2 seconds.
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(
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s.makeBundle(2.0, {
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x = Synth.new("tpulse");
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a = Bus.control.set(440);
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x.map(\freq, a);
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});
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)
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x.free;
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// don't send
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(
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b = s.makeBundle(false, {
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x = { PinkNoise.ar(0.1) * In.kr(0, 1); }.play;
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});
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)
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// now pass b as a pre-existing bundle, and start both synths synchronously
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(
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s.makeBundle(nil, { // nil executes ASAP
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y = { SinOsc.kr(0.2).abs }.play(x, 0, 0, \addBefore); // sine envelope
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}, b);
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)
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x.free; y.free;
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::
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To send a bundle with the default latency of the server, use the message bind:
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code::
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(
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s.bind {
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SynthDef("tpulse2", { arg out=0, freq=700, sawFreq=440.0;
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Out.ar(out, Pan2.ar(SyncSaw.ar(freq, sawFreq, 0.1), SinOsc.kr(8)) )
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}).send(s);
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s.sync; // wait until synthdef is loaded
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x = Synth.new("tpulse2");
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a = Bus.control.set(440);
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x.map(\freq, a);
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};
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)
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a.free; x.free;
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::
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In addition to this there are a number of methods which return OSC messages which can be added to a bundle. These are detailed in the helpfiles for link::Classes/Node::, link::Classes/Synth::, and link::Classes/Group::.
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code::
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s.boot;
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b = List.new;
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c = Bus.control(s, 1).set(660);
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x = Synth.basicNew("default", s); // Create without sending
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b.add(x.newMsg);
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b.add(x.mapMsg(\freq, c));
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b.postln; // here's what it looks like
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s.listSendBundle(1.0, b); // Execute after 1 second
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c.set(440);
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s.queryAllNodes;
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x.free;
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::
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