192 lines
8 KiB
HTML
192 lines
8 KiB
HTML
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<html><head><title>ServerClock</title>
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<link rel='stylesheet' href='./../scdoc.css' type='text/css' />
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<link rel='stylesheet' href='./../frontend.css' type='text/css' />
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<link rel='stylesheet' href='./../custom.css' type='text/css' />
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<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />
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<script src='./../scdoc.js' type='text/javascript'></script>
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<script src='./../docmap.js' type='text/javascript'></script>
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<script src='./../prettify.js' type='text/javascript'></script>
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<script src='./../lang-sc.js' type='text/javascript'></script>
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<script type='text/javascript'>var helpRoot='./..';</script>
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</head>
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<ul id='menubar'></ul>
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<body onload='fixTOC();prettyPrint()'>
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<div class='contents'>
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<div class='header'>
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<div id='label'>SuperCollider CLASSES (extension)</div>
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<div id='categories'><a href='./../Browse.html#Libraries>BBCut'>Libraries>BBCut</a></div>
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<h1>ServerClock</h1>
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<div id='summary'>A server-controlled clock</div>
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</div>
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<div class='subheader'>
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<div id='filename'>Source: <a href='file:///Users/zzk/Library/Application Support/SuperCollider/downloaded-quarks/BBCut/classes/eventscheduling/ServerClock.sc'>/Users/zzk/Library/Application Support/SuperCollider/downloaded-quarks/BBCut/classes/eventscheduling/ServerClock.sc</a></div><div id='superclasses'>Inherits from: <a href="../Classes/ExternalClock.html">ExternalClock</a> : <a href="../Classes/Object.html">Object</a></div>
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<div id='related'>See also: <a href="./../Overviews/BBCut.html">BBCut</a></div>
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</div>
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<div id='toc'>
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<ul class='toc'><li class='toc1'><a href='#description'>Description</a></li>
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<ul class='toc'></ul><li class='toc1'><a href='#classmethods'>Class methods</a></li>
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<ul class='toc'><li class='toc2'><a href='#Inherited%20class%20methods'>Inherited class methods</a></li>
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</ul><li class='toc1'><a href='#instancemethods'>Instance methods</a></li>
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<ul class='toc'><li class='toc3'><a href='#-play'>play</a> </li>
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<li class='toc3'><a href='#-stop'>stop</a> </li>
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<li class='toc2'><a href='#Inherited%20instance%20methods'>Inherited instance methods</a></li>
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<li class='toc2'><a href='#Undocumented%20instance%20methods'>Undocumented instance methods</a></li>
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<ul class='toc'><li class='toc3'><a href='#-getMaterial'>getMaterial</a> </li>
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<li class='toc3'><a href='#-responder'>responder</a> </li>
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<li class='toc3'><a href='#-tempo'>tempo</a> </li>
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</ul></ul><li class='toc1'><a href='#examples'>Examples</a></li>
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<ul class='toc'></ul></ul></div><h2><a class='anchor' name='description'>Description</a></h2>
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<p>A scheduling clock driven from OSC Triggers from the Server. Allows the use of a UGen as a beat tracker controlling scheduling. This class assumes a UGen running on the Server, sending OSC trig messages at each beat. <h2><a class='anchor' name='classmethods'>Class Methods</a></h2>
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<h3><a class='anchor' name='Inherited%20class%20methods'>Inherited class methods</a></h3>
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<div id='inheritedclassmets'></div><h2><a class='anchor' name='instancemethods'>Instance Methods</a></h2>
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<h3 class='imethodname'><span class='methprefix'>-</span><a name='-play' href='./../Overviews/Methods.html#play'>play</a> (<span class='argstr'>trigID: 0</span>, <span class='argstr'>s</span>)</h3>
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<div class='method'>
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<p><h4>Arguments:</h4>
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<table class='arguments'>
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<tr><td class='argumentname'>trigID<td class='argumentdesc'>
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<p>Trigger OSC message ID number. <tr><td class='argumentname'>s<td class='argumentdesc'>
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<p>Server. </table></div><h3 class='imethodname'><span class='methprefix'>-</span><a name='-stop' href='./../Overviews/Methods.html#stop'>stop</a> </h3>
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<div class='method'>
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<p>A ServerClock must be stopped to remove the OSC responder that reacts to triggers sent from the Server. </div><h3><a class='anchor' name='Inherited%20instance%20methods'>Inherited instance methods</a></h3>
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<div id='inheritedinstmets'></div><h3><a class='anchor' name='Undocumented%20instance%20methods'>Undocumented instance methods</a></h3>
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<h3 class='imethodname'><span class='methprefix'>-</span><a name='-getMaterial' href='./../Overviews/Methods.html#getMaterial'>getMaterial</a> </h3>
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<h3 class='imethodname'><span class='methprefix'>-</span><a name='-responder' href='./../Overviews/Methods.html#responder'>responder</a> </h3>
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<h3 class='imethodname'><span class='methprefix'>-</span><a name='-tempo' href='./../Overviews/Methods.html#tempo'>tempo</a></h3>
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<h3 class='imethodname'><span class='methprefix'>-</span><a name='-tempo' href='./../Overviews/Methods.html#tempo'>tempo</a> = <span class='argstr'>val</span></h3>
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<h2><a class='anchor' name='examples'>Examples</a></h2>
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<pre class='code prettyprint lang-sc'>s=Server.default;
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s.latency=0.05; //must be small compared to half beat size in tempo
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(
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//react to an Impulse driven clock on the Server, SendTrig with ID of 100
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SynthDef(\help_ServerClock,{arg tempo=2.3, beepvol=0.0, trigID=100;
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var clocktick, beep;
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clocktick=Impulse.ar(tempo);
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beep= SinOsc.ar(440,0,0.1)*Decay.ar(clocktick,0.1);
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Out.ar(0,Pan2.ar(beepvol*beep,0.0));
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//trig from clock, trigID 100, always pass current tempo as parameter
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SendTrig.ar(clocktick,trigID,tempo); //sends with ID of 100 matching what clock expects
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}).send(s);
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)
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a=Synth(\help_ServerClock);
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//set up a ServerClock running off of these triggers
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c=ServerClock.new.play(100,s);
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//run a bbcut from it
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b=BBCutBuffer(Platform.resourceDir +/+ "sounds/break.aiff",8);
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d=BBCut2(CutBuf2(b)).play(c);
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a.set(\tempo,2.5);
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a.set(\tempo,1.7);
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//triggers stop
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a.free;
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//continue triggers
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a=Synth(\help_ServerClock)
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c.stop; //stop and free OSC responder.
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d.free; //free resources
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//frees clock
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a.free;
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//now a beat tracking example
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//change the ~source line with a path to some song file you want to track to load from your hard drive
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(
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var trackbus, trackgroup;
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s.latency=0.05;
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//clear any existing OSCresponder
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OSCresponder.all.do({arg val; if(val.cmdName=='/tr',{OSCresponder.remove(val)}); });
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//run a line at a time
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~clock= ServerClock.new;
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~clock.play(100,s); //will wait on trigID 100
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Routine.run({
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~buffers= BBCutBuffer.array([Platform.resourceDir +/+ "sounds/break.aiff",Platform.resourceDir +/+ "sounds/break2.aiff"],[8,4]);
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//choose some file you want to track off your hard drive
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~source=Buffer.read(s,"/Volumes/data/stevebeattrack/samples/100.wav");
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~trackbus=Bus.audio(s,1);
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trackgroup= Group.before(Node.basicNew(s,1));
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//run a beat tracker on the Server which sends the appropriate OSC message
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~tracksynth= SynthDef(\help_bbinduct,{arg vol=1.0, beepvol=0.0, lock=0;
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var trackb,trackh,trackq,tempo;
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var source, beep;
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source= PlayBuf.ar(1,~source.bufnum,1.0,1,0,1);
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//see AutoTrack help file
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#trackb,trackh,trackq,tempo=AutoTrack.kr(source, lock);
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beep= SinOsc.ar(1000,0.0,Decay.kr(trackb,0.1));
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Out.ar(~trackbus.index,source);
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Out.ar(0,Pan2.ar((vol*source)+(beepvol*beep),0.0));
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SendTrig.kr(trackb,100,tempo); //sends with ID of 100 matching what clock expects
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}).play(trackgroup);
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});
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)
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//cutters will run by default in Node.basicNew(s,1), so rendering order safe
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//will be added to run on this clock as soon as made, you'll hear from the next beat
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a=BBCut2(CutBuf2(~buffers[0],0.3), ChooseCutProc(1,2)).play(~clock);
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b=BBCut2(CutBuf2(~buffers[1],0.5, dutycycle:0.3), BBCutProc11.new).play(~clock);
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~tracksynth.set(\vol,0.1);
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~tracksynth.set(\beepvol,0.0);
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~store=Buffer.alloc(Server.default,44100,1);
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//stream cut the source with respect to the inferred beat
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c=BBCut2(CutStream1(~trackbus.index,~store), ChooseCutProc(0.25,4)).play(~clock);
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//lock in to a state that is working
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~tracksynth.set(\lock,1.0);
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//remove lock (ie track again)
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~tracksynth.set(\lock,0.0);
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a.end;
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b.end;
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c.stop;
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~store.free;
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//remove everything and terminate clock
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~clock.stop;
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~tracksynth.free;</pre>
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<div class='doclink'>helpfile source: <a href='file:///Users/zzk/Library/Application Support/SuperCollider/downloaded-quarks/BBCut/HelpSource/Classes/ServerClock.schelp'>/Users/zzk/Library/Application Support/SuperCollider/downloaded-quarks/BBCut/HelpSource/Classes/ServerClock.schelp</a><br>link::Classes/ServerClock::<br>sc version: 3.8.0</div></div></body></html>
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