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scd/fm pulsar terrain draft.scd

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(
// Generate a terrain table
~terrain = Buffer.alloc(s, 1024, 1);
~terrain.sine1([1, 0.5, 0.3, 0.2, 0.1], true); // You can sculpt this more chaotically
SynthDef("fm_pulsar_terrain", {
arg a, e, f, d;
var t, overlap, carfreq, modfreq, mInd, vel, vel_, tblPos, sig;
f = \freq.kr(100);
vel = \kel.kr(0.5);
vel_ = vel.clip(0,1.0).linlin( 0, 1, 2, 0.7);
e = EnvGen.kr(
Env.adsr(
\att.kr(0.025) * vel_,
\dec.kr(0.02) * vel_,
\susl.kr(0.7),
\rel.kr(4),
curve: \curve.kr(-4)
),
gate: \gate.kr(1),
doneAction:2
) * vel;
carfreq = f * \cf.kr(2) + LFNoise1.kr(3).range(0,50);
modfreq = carfreq * \mf.kr(2) + LFNoise1.kr(3).range(0,100);
t = Impulse.ar(f);
mInd = e.pow(3.3); // use envelope shape to shift table pos
overlap = 1.1 - e.pow(0.5);
d = overlap / f;
// convert modfreq to index between 0 and 1 for VOsc
tblPos = modfreq.linlin(0, 8000, 0, 1).wrap(0, 1); // safer than clip for edge cases
a = Mix([
SinOsc.ar(f),
GrainBuf.ar(1, t, d, ~terrain, tblPos, carfreq, 0, 2)
]);
a = LeakDC.ar(a * e);
a = FreeVerb.ar(a, 0.33, 1);
Out.ar(\outBus.kr(0), a.dup * \gain.kr(0.1));
}).add;
)
(
// MIDI
~notes = Array.newClear(128);
~ccVals = Array.fill(128, { 0.0 }); // NEW: store CC values
// Map CC knobs 015 on MIDI channel 2
(0..15).do { |ccNum|
MIDIdef.cc(\cc_ ++ ccNum, { |val, num, chan, src|
if (chan == 1) { // channel 2
~ccVals[num] = val.linlin(0, 127, 0.0, 1.0);
};
}, ccNum);
};
MIDIdef.noteOn(\noteOnTest, {
arg vel, nn, chan, src;
[vel, nn].postln;
if (chan == 0, {
~notes[nn] = Synth.new(
\fm_pulsar_terrain,
[
\amp, vel.linexp(1,127,0.01,0.3),
\freq, nn.midicps,
// NEW: use CC knob values
\att, ~ccVals[0].linlin(0, 1, 0.01, 0.2),
\dec, ~ccVals[1].linlin(0, 1, 0.01, 0.2),
\susl, ~ccVals[2].linlin(0, 1, 0.1, 1.0),
\rel, ~ccVals[3].linlin(0, 1, 0.2, 8.0),
\cf, ~ccVals[4].linlin(0, 1, 0.5, 4.0),
\mf, ~ccVals[5].linlin(0, 1, 0.5, 4.0),
\curve, ~ccVals[6].linlin(0, 1, -8, 8),
\gain, ~ccVals[7].linlin(0, 1, 0.01, 0.5),
\kel, ~ccVals[8].linlin(0, 1, 0.1, 1.0)
// Knobs 915 are unused for now
]
);
});
});
MIDIdef.noteOff(\noteOffTest, {
arg vel, nn, chan;
[vel, nn].postln;
if (chan == 0, {
~notes[nn].set(\gate, 0);
~notes[nn] = nil;
});
});
)
(
// MIDI setup
MIDIClient.init;
MIDIIn.connectAll;
)
(
~notes[60] = Synth(\fm_pulsar_terrain, [
\freq, 60.midicps,
\amp, 0.2,
\att, ~ccVals[0].linlin(0,1, 0.001, 0.2),
\dec, ~ccVals[1].linlin(0,1, 0.001, 0.2),
\susl, ~ccVals[2].linlin(0,1, 0.1, 1.0),
\rel, ~ccVals[3].linlin(0,1, 0.1, 8.0),
\cf, ~ccVals[4].linlin(0,1, 0.5, 5.0),
\mf, ~ccVals[5].linlin(0,1, 0.5, 5.0),
\curve, ~ccVals[6].linlin(0,1, -8, 8),
\gain, ~ccVals[7].linlin(0,1, 0.01, 0.5),
\kel, ~ccVals[8].linlin(0,1, 0.1, 1.0)
]);
)