multigrain/grains.scd

360 lines
9.2 KiB
Markdown

Server.killAll
// Execute this before booting the server
Server.default.options.inDevice_("Scarlett 2i2 USB");
// TODO - FIXME
// [X] mode switching isn't working
// [ ] playback speed isn't working
// [ ] lfo filter modulation isn't working
// [ ] setting parameters from defaults at startup like passthrough
s.sampleRate
(
~to = TouchOSC("192.168.0.209", 9000);
~buflen = 4.0;
// trying setting the playback LFOs before the controls
// granulator playback modes
// each of these is a control bus with a synth that drives the pattern
// the granulator mode control switches between them
// more ideas for modules: scramble - do a permutation of ABCDEFGH slots
// todo - encapsulate these in a class
~grainsinb = Bus.control(s, 1);
~grainsin = SynthDef(
\grainsin,
{
arg out=5, speed=1;
Out.kr(out, 0.5 + SinOsc.kr(speed, 0, 0.5));
}
).play(s, [\out, ~grainsinb, \speed, 1]);
~grainsawb = Bus.control(s, 1);
~grainsaw = SynthDef(
\grainsaw,
{
arg out=5, speed=1;
Out.kr(out, 0.5 + LFSaw.kr(speed, 0, 0.5));
}
).play(s, [\out, ~grainsawb, \speed, 1]);
~grainreverseb = Bus.control(s, 1);
~grainreverse = SynthDef(
\grainreverse,
{
arg out=5, speed=1;
Out.kr(out, 0.5 - LFSaw.kr(speed, 0, 0.5));
}
).play(s, [\out, ~grainreverseb, \speed, 1]);
~graintrib = Bus.control(s, 1);
~graintri = SynthDef(
\graintri,
{
arg out=5, speed=1;
Out.kr(out, 0.5 + LFTri.kr(speed, 0, 0.5));
}
).play(s, [\out, ~graintrib, \speed, 1]);
~grainrandb = Bus.control(s, 1);
~grainrand = SynthDef(
\grainrand,
{
arg out=5, speed=1;
Out.kr(out, 0.5 + WhiteNoise.kr(0.5));
}
).play(s, [\out, ~grainrandb, \speed, 1]);
~modes = [
[ ~grainsaw, ~grainsawb, "saw" ],
[ ~grainreverse, ~grainreverseb, "reverse", ],
[ ~grainsin, ~grainsinb, "sine" ],
[ ~graintri, ~graintrib, "triangle" ],
[ ~grainrand, ~grainrandb, "random" ]
];
~playbacklfo = ~modes[0][0];
// audio buses
// recordb = input to bufrecorder
// granulatorb = output from granulator
~usbinput = 2;
~recordb = Bus.audio(s, 1);
~granulatorb = Bus.audio(s, 2);
// LFO bus and synth used to modulate the filter
// TODO - have a couple of LFOs and an interface to patch them to
// different settings
~lfob = Bus.control(s, 1);
~lfo = SynthDef(
\lfo,
{
arg out=5, freq=1, amp=0;
Out.kr(out, SinOsc.kr(freq, 0, amp));
}
).play(s, [\out, ~lfob, \freq, 1, \amp, 0]);
// input filter chain
// ~infilter = SynthDef(
// \input_null,
// {x
// arg in = 2, out = 4;
// Out.ar(out, In.ar(in));
// }
// ).play(s, [\in, ~usbinput, \out, ~recordb]);
~fuzzbox = SynthDef(
\fuzzbox,
{
arg in=2, out=4, distort=0.1, decay=0.999;
var raw, cross, pf;
raw = In.ar(in, 1).softclip;
cross = CrossoverDistortion.ar(raw, 0.5, 0.5);
pf = PeakFollower.ar(raw, decay);
Out.ar(out, ((1 - distort) * raw) + (distort * pf * cross));
}
).play(s, [\in, ~usbinput, \out, ~recordb, \distort, 0 ]);
// ~decimator = SynthDef(
// \decimator,
// {
// arg in=2, out=4, modb, rate=10000, smooth=0.5;
// var raw, mod, decimated;
// raw = In.ar(in, 1);
// mod = In.kr (modb, 1);
// decimated = SmoothDecimator.ar(raw, rate + (0.2 * rate * mod), smooth);
// Out.ar(out, decimated);
// }
// ).play(s, [\in, ~usbinput, \out, ~recordb, \modb, ~lfob, \rate, 10000 ]);
//
// ~localmax = SynthDef(
// \localmax,
// {
// arg in=2, out=4, threshold=25;
// var chain;
// chain = FFT(LocalBuf(2048), In.ar(in, 1).distort);
// chain = PV_LocalMax(chain, threshold);
// Out.ar(out, IFFT.ar(chain));
// }
// ).play(s, [\in, ~usbinput, \out, ~recordb, \threshold, 25 ]);
//
// ~scramble = SynthDef(
// \scramble,
// {
// arg in=2, out=4, shift=1;
// var chain;
// chain = FFT(LocalBuf(2048), In.ar(in, 1).distort);
// chain = PV_BinScramble(chain, 0.5, 0.2, Impulse.kr(shift));
// Out.ar(out, IFFT.ar(chain));
// }
// ).play(s, [\in, ~usbinput, \out, ~recordb, \shift, 1 ]);
//
// buffer recorder
~frippbuffer = Buffer.alloc(s, s.sampleRate * ~buflen, 1);
~bufrecorder = SynthDef(
\fripp_record,
{
arg in = 2, fb = 4, buffer = 0, mix = 0.25, record = 0.0, feedback = 0.0;
var insig, fbsig;
insig = record * In.ar(in, 1);
fbsig = feedback * Mix.ar(In.ar(fb, 2));
RecordBuf.ar(insig + fbsig, buffer, 0, mix, 1 - mix, loop: 1)
}
).play(s, [\in, ~recordb, \record, 1.0, \fb, ~granulatorb, \out, 0, \buffer, ~frippbuffer], \addToTail);
// the main granulator synth
// todo - different styles of trigger
~granulator = SynthDef(
\grainsynth,
{
arg out=0, modb, trate=120, size=12, rate=1, posb=5, amp=1.0, freq=10000, rq=0.3, sweep=0.25, chorus=0.0, blur=0.0, dust = 0, buffer;
var dur, blen, clk, chor, pos, pan, grains, filtfreq;
dur = size / trate;
clk = (Impulse.kr(trate) * (1 - dust)) + (Dust.kr(trate) * dust);
chor = chorus * 2.pow((LFNoise0.kr(trate) + 0.5).floor) + (1 - chorus);
blen = BufDur.kr(buffer);
pos = Wrap.kr(In.kr(posb, 1) + WhiteNoise.kr(blur), 0, 1);
pan = WhiteNoise.kr(1 - sweep) + (2 * sweep * (pos - 1));
filtfreq = (In.kr(modb, 1) * freq * 0.5) + freq;
grains = TGrains.ar(2, clk, buffer, chor * rate, pos * blen, dur, pan, amp);
Out.ar(out, RLPF.ar(grains, freq, rq)); // note that I've turned off freq lfo mod here
}
).play(s, [\out, ~granulatorb, \buffer, ~frippbuffer, \posb, ~grainsawb, \modb, ~lfob]);
~mixerb = Bus.audio(s, 2); // this is what we will record from
~mixer = SynthDef(
\mixer_synth,
{
arg in = 2, gbus = 4, out = 0, amp = 1.0, passthrough = 0.0;
//Out.ar(out, In.ar(gbus, 2));
Out.ar(out, (amp * In.ar(gbus, 2)) + (passthrough * In.ar(~recordb, 1) ! 2));
}
).play(s, [\in, 2, \out, ~mixerb, \gbus, ~granulatorb, \amp, 1.0, \passthrough, 0.0], \addToTail);
~monitor = SynthDef(
\monitor_synth,
{
arg in=2, out=0;
Out.ar(out, In.ar(in, 2))
}
).play(s, [\in, ~mixerb, \out, 0 ], \addToTail);
// sync the server so that all the synths are ready for the touchosc stuff
)
s.sync(); // this needs to be done in a routine because it calls yield
// sidebar -
~to
(
~to.button('/record', 1, { | v | ~bufrecorder.set(\record, v) });
~to.button('/reset', 0, { | v |
if( v > 0, {
var sp = ~to.v('/grains/speed')[0];
~buflen = ~to.v('/grains/buflen');
[ "resetting buffer to", ~buflen ].postln;
~newbuffer = Buffer.alloc(s, s.sampleRate * ~buflen, 1);
~granulator.set(\buffer, ~newbuffer);
~bufrecorder.set(\buffer, ~newbuffer);
if( ~frippbuffer.isNil.not, { ~frippbuffer.free });
~frippbuffer = ~newbuffer;
~playbacklfo.set(\speed, sp / ~buflen);
});
});
~to.slider('/mix', 0.25, TouchOSCScale(0, 1), { |v| ~bufrecorder.set(\mix, v) } );
~to.slider('/grainamp', 0.5, TouchOSCScale(0, 1), { |v| ~granulator.set(\amp, v) } );
~to.slider('/passthrough', 0.5, TouchOSCScale(0, 1), { |v| ~mixer.set(\passthrough, v) } );
~to.slider('/feedback', 0, TouchOSCScale(0, 0.25), { |v|
~bufrecorder.set(\feedback, v) } );
~to.button('/grains/bpm', "~", {});
~tapper = TapBeats();
~to.button('/grains/tap', 0, { | v, t |
if( v > 0, {
~tapper.tap(t);
if( ~tapper.bpm.isNil.not, {
~to.v_('/grains/bpm', ~tapper.bpm.round(1));
})
})
});
// note: ~buflen is the variable for buffer length, which only gets set to
// ~to.v('/grains/buflen') when the buffer is reset with the clear button
~to.slider('/grains/buflen', ~buflen, TouchOSCScale(0.1, 10.0), {});
~to.xy('/grains/speed', [ 1, 40 ], TouchOSCScale(0, 2), TouchOSCScale(0, 120), { | v |
~playbacklfo.set(\speed, v[0] / ~buflen);
~granulator.set(\trate, v[1] / ~buflen);
});
~to.button('/grains/mode', 0, { |v|
var mode = ~modes[v];
[ "trying to set mode to", v ].postln;
[ "mode is ", mode].postln;
mode.isNil.postln;
if( mode.isNil.not, {
~granulator.set(\posb, mode[1]);
~playbacklfo = mode[0];
~playbacklfo.set(\speed, ~to.v('/grains/speed')[0]);
}, {
[ "Bad mode index", v ].postln;
});
});
// todo vvv quantise speed should be swappable
// var trate, qspeed;
// qspeed = 2.pow(v[0].floor);
// ~playbacklfo.set(\speed, qspeed / ~buflen);
// [ "speed", v[0], qspeed, qspeed / ~buflen ].postln;
// trate = 2.pow(v[1].floor) / ~buflen;
// ~granulator.set(\trate, trate);
~to.slider('/grains/size', 12, TouchOSCScale(0, 20),{ |v| ~granulator.set(\size, v) });
// Page 2: grainfx
~to.slider('/grainfx/blur', 0, TouchOSCScale(0, 1), { |v| ~granulator.set(\blur, v) });
~to.button('/grainfx/back', 1, { |v| ~granulator.set(\rate, if( v > 0, { -1 }, { 1}))});
~to.button('/grainfx/chorus', 0, { |v| ~granulator.set(\chorus, v) });
~to.button('/grainfx/dust', 0, { |v| ~granulator.set(\dust, v) });
// pitch gets quantised to octaves from 3 below to 3 above.
// NOTE: the pitch TouchOSC control is -1 to 1, not 0 to 1
// min/max gets ignored because I'm overloading the ctrlset/get
// TODO: fixme,
// ~to.slider('/grainfx/pitch', -1, 1, 1,
// { |self| ~granulator.set("rate", self.v) },
// { |self, ctrlv | self.v = 2.pow((ctrlv * 3).floor) },
// { |self| self.v.log2.floor / 3; }
// );
~to.slider('/fx/freq', 10000, TouchOSCScale(200, 10000), { |v| ~granulator.set(\freq, v) } );
~to.slider('/fx/rq', 0.3, TouchOSCScale(0.1, 1), { |v| ~granulator.set(\res, v) } );
~to.slider('/fx/lfofreq', 0.5,TouchOSCScale(0.001, 4), { |v| ~lfo.set(\freq, v) } );
~to.slider('/fx/lfoamp', 0, TouchOSCScale(0, 1), { |v| ~lfo.set(\amp, v) });
~to.slider('/fx/fuzz', 0, TouchOSCScale(0, 1), { |v| ~fuzzbox.set(\distort, v) });
)