«Stutter live looping buffer» by blueprint

on 25 Jan'18 06:10 in glitchstutter

The stutter tutorial really has it all. Just not with live audio :)

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(
~stutter = { |snd, reset, fragmentlength, rate = 1.0, maxdelay = 10|
    var phase, fragment, del;
    phase = Sweep.ar(reset);
    fragment = { |ph| (ph - Delay1.ar(ph)) < 0 + Impulse.ar(0) }.value(phase / fragmentlength % 1);
    del = Latch.ar(phase, fragment) + ((fragmentlength - Sweep.ar(fragment)) * (rate - 1));
    DelayC.ar(snd, maxdelay, del);
};
)

// This is just an example of doing it live which was missing in the stutter tutorial :)
(
{	var snd, reset;
	snd = AudioIn.ar([1,2]);
        reset = Onsets.kr(FFT(LocalBuf(512), snd), 0.7);
        snd = ~stutter.(snd, reset, 0.09);
        snd = DelayC.ar(snd, 0.2, 0.2);
        snd!2 * 0.3;
}.play;
)

// Of course you can also:
// sequencing with Pmono
(
SynthDef(\stuttertest, {
    |out = 0, buf, t_reset = 0, fragmentlength = 0.1, amp = 0.1|
    var snd, reset;
    snd = AudioIn.ar([1,2]);
    reset = Onsets.kr(FFT(LocalBuf(512), snd), t_reset);
    snd = ~stutter.(snd, reset, fragmentlength);
    Out.ar(out, snd * amp!2);
}).add;
)
(
Pmono(\stuttertest,
    \buf, b,
    \amp, 0.3,
    \reset, 0.7,
    \dur, 0.1,
    \fragmentlength, Pseq([0.01, 0.03, 0.07, 0.05, 0.06], inf)
).play;
)
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