Effects chain works
Mike Lynch
parent
e5bfc0d79d
commit
69c0d16a65
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NOTES.md
30
NOTES.md
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@ -1,29 +1,31 @@
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TODO
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# TODO
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Immediate todo -
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## Granulator
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Separate out the stuff which controls playback rates from the
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granulator into its own Synth - this should output a kr signal
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for the rate which the granulator takes as an input
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Fix chorus and detune - why isn't it being triggered?
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What this Synth should be able to do:
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Add pitch shifting
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- tracking the slope of the playback lfo so that it can play grains
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backwards when the playback is reversed
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Change harmonics for chorus
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- inverting playback (ie either play backwards all the time, or play
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the opposite way from the playback lfo
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Lock harmonics to octaves / ratios
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- detuning
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## Effects chain
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- pitch shifting
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Add an effects chain like with midilooper
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- chorus
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-> filter -> reverb -> out
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## LFO mod
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Add the new-style lfo mods to filter
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## More LFO mods
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- Convert the granulator (including the buffer stuff) to a class
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Allow other settings to be modulated
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## Input filter
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Switch in and out a single input filter like distort, peak FFT, etc,
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177
grains.scd
177
grains.scd
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@ -1,16 +1,7 @@
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Server.killAll
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// Execute this before booting the server
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Server.default.options.inDevice_("Scarlett 2i2 USB");
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// TODO - FIXME
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// [X] mode switching isn't working
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// [ ] playback speed isn't working
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// [ ] lfo filter modulation isn't working
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// [ ] setting parameters from defaults at startup like passthrough
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s.sampleRate
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(
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@ -97,7 +88,6 @@ s.sampleRate
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// audio buses
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// recordb = input to bufrecorder
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// granulatorb = output from granulator
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~recordb = Bus.audio(s, 1);
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@ -113,17 +103,25 @@ s.sampleRate
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~granulatorb = Bus.audio(s, 2);
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// LFO bus and synth used to modulate the filter
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// LFO buses and synths
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~lfob = Bus.control(s, 1);
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~lfoab = Bus.control(s, 1);
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~lfobb = Bus.control(s, 1);
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~lfocb = Bus.control(s, 1);
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~lfo = SynthDef(
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~lfoa =SynthDef(
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\lfo,
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{
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arg out=5, freq=1, amp=0;
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Out.kr(out, SinOsc.kr(freq, 0, amp));
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}
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).play(s, [\out, ~lfob, \freq, 1, \amp, 0]);
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).play(s, [\out, ~lfoab]);
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// These need to wait till the \lfo definition arrives at the server
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// ~lfoa = Synth(\lfo, [\out, ~lfoab ]);
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// ~lfob = Synth(\lfo, [\out, ~lfobb ]);
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// ~lfoc = Synth(\lfo, [\out, ~lfocb ]);
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// a kr synth which triggers grains
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@ -150,12 +148,12 @@ s.sampleRate
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{
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arg out, posb, triggerb, track=1, dir=1, detune=0.0, chorus=0, harmonic=2;
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var tracking, base, chor, det, csig, dsig;
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csig = Latch.kr(WhiteNoise.kr(), In.kr(triggerb));
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dsig = Latch.kr(WhiteNoise.kr(), In.kr(triggerb));
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// csig = Latch.kr(WhiteNoise.kr(), In.kr(triggerb));
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// dsig = Latch.kr(WhiteNoise.kr(), In.kr(triggerb));
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tracking = Schmidt.kr(Slope.kr(posb), 0, 0) * 2 - 1;
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base = dir * (track * tracking + (1 - track));
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det = detune * dsig + 1;
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chor = chorus * harmonic.pow(csig + 0.5).floor + (1 - chorus);
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det = detune * LFNoise1.kr(120) + 1;
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chor = chorus * harmonic.pow(LFNoise1.kr(120) + 0.5).floor + (1 - chorus);
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Out.kr(out, base * chor * det);
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}
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).play(s, [ \out, ~pitchb, \triggerb, ~triggerb, \posb, ~playbacklfob, \dir, 1, \track, 0]);
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@ -180,23 +178,19 @@ s.sampleRate
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// the main granulator synth
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// note - connect size back to the trigger rate?
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// todo - take the filter out of this
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~granulator = SynthDef(
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\grainsynth,
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{
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arg out=0, buffer, pitchb, triggerb, posb, modb, size=0.1, amp=1.0, freq=10000, rq=0.3, pan=0, track=0.25, jitter=0, blur=0.0;
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arg out=0, buffer, pitchb, triggerb, posb, modb, size=0.1, amp=1.0, pan=0, track=0.25, jitter=0, blur=0.0;
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var pitch, blen, trigger, chor, pos, pans, grains, filtfreq;
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trigger = Impulse.kr(120);
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pitch = In.kr(pitchb);
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blen = BufDur.kr(buffer);
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pos = Wrap.kr(In.kr(posb, 1) + WhiteNoise.kr(blur), 0, 1);
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pans = pan + WhiteNoise.kr(jitter) + (track * (In.kr(posb, 1) - 1));
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filtfreq = (In.kr(modb, 1) * freq * 0.5) + freq;
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grains = TGrains.ar(2, trigger, buffer, pitch, pos * blen, size, pans, amp);
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Out.ar(out, RLPF.ar(grains, filtfreq, rq));
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Out.ar(out, grains);
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}
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).play(s, [
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\out, ~granulatorb,
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@ -208,29 +202,88 @@ s.sampleRate
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\size, 0.1
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]);
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~mixerb = Bus.audio(s, 2); // this is what we will record from
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// mixing and effects
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~mixer = SynthDef(
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\mixer_synth,
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~fxb = Bus.audio(s, 2);
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~filterb = Bus.audio(s, 2);
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~grainsb = Bus.audio(s, 2);
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~delayb = Bus.audio(s, 2);
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~reverbb = Bus.audio(s, 2);
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~grainmixer = SynthDef(
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\grain_mixer,
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{
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arg in = 2, gbus = 4, out = 0, amp = 1.0, passthrough = 0.0;
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//Out.ar(out, In.ar(gbus, 2));
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Out.ar(out, (amp * In.ar(gbus, 2)) + (passthrough * In.ar(~recordb, 1) ! 2));
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arg in = 2, gbus = 4, out = 0, passthrough = 0.2;
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Out.ar(out, (In.ar(gbus, 2)) + (passthrough * In.ar(~recordb, 1) ! 2));
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}
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).play(s, [\in, ~usbinput, \out, ~mixerb, \gbus, ~granulatorb, \amp, 1.0, \passthrough, 0.0], \addToTail);
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).play(s, [\in, ~usbinput, \out, ~fxb, \gbus, ~granulatorb ], \addToTail);
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~filter = SynthDef(
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\filter, {
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arg in, out, mod, freq=10000, res=0.3, amp=1.0;
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var filt, lfo;
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lfo = LinExp.kr(In.kr(mod, 1), -1, 1, freq * 0.5, freq * 2);
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filt = RLPF.ar(In.ar(in, 2) * amp, lfo, res);
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Out.ar(out, filt);
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}
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).play(s, [ \in, ~fxb, \out, ~filterb, \mod, ~lfoab, \amp, 0.5 ], \addToTail);
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// delay always passes through 100% of its input + amp % of the delay
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~delay = SynthDef(
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\delay, {
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arg in, out, maxdelay=1, delaytime=0.2, decaytime=0.1, amp=0.5;
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var sig = In.ar(in, 2), del;
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del = CombC.ar(sig, maxdelay, delaytime, decaytime, amp);
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Out.ar(out, sig + del);
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}
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).play(s, [ \in, ~filterb, \out, ~delayb ], \addToTail);
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~reverb = SynthDef(
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\reverb, {
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arg in, out, mix=0.33, room=0.5, damp=0.5, amp=0.25;
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var input = In.ar(in, 2);
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Out.ar(out, input + FreeVerb2.ar(input[0], input[1], mix, room, damp, amp));
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}
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).play(s, [ \in, ~delayb, \out, 0 ], \addToTail);
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)
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~recordb.scope;
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~grainmixer.set(\amp, 0.5);
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~fxb.scope;
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~filter.set(\amp, 1);
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~granulatorb.scope;
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~reverbb.scope
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(
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~monitor = SynthDef(
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\monitor_synth,
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{
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arg in=2, out=0;
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Out.ar(out, In.ar(in, 2))
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}
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).play(s, [\in, ~mixerb, \out, 0 ], \addToTail);
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).play(s, [\in, ~fxb, \out, 0 ], \addToTail);
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// sync the server so that all the synths are ready for the touchosc stuff
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)
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~monitor.set(\in, ~reverbb)
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~monitor.free
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// s.sync(); // this needs to be done in a routine because it calls yield
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// sidebar -
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@ -260,7 +313,7 @@ OSCdef.freeAll;
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~to.slider('/mix', 0.25, TouchOSCScale(0, 1), { |v| ~bufrecorder.set(\mix, v) } );
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~to.slider('/gain', 0.5, TouchOSCScale(0, 1), { |v| ~granulator.set(\amp, v) } );
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~to.slider('/passthrough', 0.5, TouchOSCScale(0, 1), { |v| ~mixer.set(\passthrough, v) } );
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~to.slider('/passthrough', 0.5, TouchOSCScale(0, 1), { |v| ~grainmixer.set(\passthrough, v) } );
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~to.slider('/feedback', 0, TouchOSCScale(0, 0.25), { |v|
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~bufrecorder.set(\feedback, v) } );
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@ -365,20 +418,41 @@ OSCdef.freeAll;
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// );
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~to.xy(
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'/fx/filter',
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[ 10000, 0.3 ],
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TouchOSCScale(200, 10000),
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TouchOSCScale(0.1, 1),
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{ |v|
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~granulator.set(\freq, v[0]);
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~granulator.set(\res, v[1]);
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}
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~to.slider(
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'/fx/filterfreq',
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10000, TouchOSCScaleExp(100, 10000), { |v| ~filter.set(\freq, v) }
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);
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~to.slider('/fx/lfofreq', 0.5,TouchOSCScale(0.001, 4), { |v| ~lfo.set(\freq, v) } );
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~to.slider('/fx/lfoamp', 0, TouchOSCScale(0, 1), { |v| ~lfo.set(\amp, v) });
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~to.slider('/fx/filtermix', 0.2, TouchOSCScale(0, 1), { |v| ~filter.set(\amp, v) } );
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~to.slider('/fx/delay', 0.2,TouchOSCScale(0, 1), { |v| ~delay.set(\delaytime, v) } );
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~to.slider('/fx/decay', 1, TouchOSCScale(0, 5), { |v| ~delay.set(\decaytime, v) } );
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~to.slider('/fx/delaymix', 0.2, TouchOSCScale(0, 1), { |v| ~delay.set(\amp, v) } );
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~to.slider('/fx/reverbwet', 0.33,TouchOSCScale(0, 1), { |v| ~reverb.set(\mix, v) } );
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~to.slider('/fx/reverbroom', 0.5,TouchOSCScale(0, 1), { |v| ~reverb.set(\room, v) } );
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~to.slider('/fx/reverbdamp', 0.5,TouchOSCScale(0, 1), { |v| ~reverb.set(\damp, v) } );
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~to.slider('/fx/reverbmix', 0.2, TouchOSCScale(0, 1), { |v| ~reverb.set(\amp, v) } );
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~to.slider('/lfos/afreq', 0.5,TouchOSCScale(0.001, 20), { |v| ~lfoa.set(\freq, v) } );
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~to.slider('/lfos/aamp', 0, TouchOSCScale(0, 1), { |v| ~lfoa.set(\amp, v) });
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~to.slider('/lfos/bfreq', 0.5,TouchOSCScale(0.001, 20), { |v| ~lfob.set(\freq, v) } );
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~to.slider('/lfos/bamp', 0, TouchOSCScale(0, 1), { |v| ~lfob.set(\amp, v) });
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~to.slider('/lfos/cfreq', 0.5,TouchOSCScale(0.001, 20), { |v| ~lfoc.set(\freq, v) } );
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~to.slider('/lfos/camp', 0, TouchOSCScale(0, 1), { |v| ~lfoc.set(\amp, v) });
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)
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(
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~posdisplay = Task.new({
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{
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@ -392,14 +466,3 @@ OSCdef.freeAll;
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~posdisplay.start;
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)
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~to.slider('/grains/blur', 0, TouchOSCScale(0, 1), { |v| ~granulator.set(\blur, v) });
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~posdisplay.stop;
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~playbacklfob;
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~pitchb.scope;
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~posb;
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~frippbuffer.write("/Users/mike/Music/buffer.aiff")
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