85 lines
2.1 KiB
Plaintext
85 lines
2.1 KiB
Plaintext
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//-----------------------------------------------------------------------------
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// name: LiSa
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// desc: Live sampling utilities for ChucK
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//
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// author: Dan Trueman, 2007
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//
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// to run (in command line chuck):
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// %> chuck LiSa_readme.ck
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//-----------------------------------------------------------------------------
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/*
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These three example files demonstrate a couple ways to approach granular sampling
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with ChucK and LiSa. All are modeled after the munger~ from PeRColate. One of the
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cool things about doing this in ChucK is that there is a lot more ready flexibility
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in designing grain playback patterns; rolling one's own idiosyncratic munger is
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a lot easier.
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Example 1 (below) is simple, but will feature some clicking due to playing back
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over the record-point discontinuity.
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*/
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//-----------------------------------------------------------------------------
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SinOsc s => LiSa l => dac;
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s=>dac;
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//freq params
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s.freq(440.);
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s.gain(0.2);
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SinOsc freqmod => blackhole;
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freqmod.freq(0.1);
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//LiSa params
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l.duration(1::second);
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//set it recording constantly; loop records by default
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l.record(1);
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l.gain(0.1);
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now + 1000::ms => time later;
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while(now<later) {
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freqmod.last() * 500. + 200. => s.freq;
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10::ms => now;
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}
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l.record(0);
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s.gain(0.);
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l.recRamp(20::ms);
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l.maxVoices(30);
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//<<<l.maxvoices()>>>;
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//this arrangment will create some clicks because of discontinuities from
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//the loop recording. to fix, need to make a rotating buffer approach.
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//see the next two example files....
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while (true) {
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Std.rand2f(1.5, 2.0) => float newrate;
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Std.rand2f(250, 750) * 1::ms => dur newdur;
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spork ~ getgrain(newdur, 20::ms, 20::ms, newrate);
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10::ms => now;
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}
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fun void getgrain(dur grainlen, dur rampup, dur rampdown, float rate)
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{
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l.getVoice() => int newvoice;
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//<<<newvoice>>>;
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if(newvoice > -1) {
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l.rate(newvoice, rate);
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//l.playpos(newvoice, Std.rand2f(0., 1000.) * 1::ms);
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l.playPos(newvoice, 20::ms);
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//<<<l.playpos(newvoice)>>>;
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l.rampUp(newvoice, rampup);
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(grainlen - (rampup + rampdown)) => now;
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l.rampDown(newvoice, rampdown);
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rampdown => now;
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}
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}
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