«Looping Station» by rukano

on 10 Feb'12 13:42 in looper

GUI for recording and playing quantized loops. If you change the tempo, hit on refresh. You can change the output bus for the click (first variable declared) If you have troubles with the font, change it to a font you might have installed, I'm using: Synchro LET You might use MIDI responders to activate the buttons, but you have to write that yourself.

Execute, record, play, have fun

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var click_out = 0;
var win = Window("Super Looper", Rect(100, 200, 800, 600)).front;
var numbufs = 64;
var layout = win.addFlowLayout((0@0), (0@0));
var container = ();
var size = (40@40);
var metronome = ();
var font = Font("Synchro LET", 18);
var buffer = nil!numbufs;
var durations = [2,4,8,16];
var player = nil!numbufs;
var player_button = (nil!(numbufs/4))!4;
var recorder_button = (nil!(numbufs/4))!4;
var reload_func = {
	var tempo = TempoClock.default.tempo.reciprocal;
	numbufs.do{ |i|
		var slot = floor(i/(numbufs/4));
		buffer[i].free;
		buffer[i] = Buffer.alloc(s, s.sampleRate * durations[slot] * tempo);
	};
};

TempoClock.default.tempo = 90/60;

// Window
win.view.background_(Color.white);

// Controls
StaticText(win, (800@10));

StaticText(win, (100@30))
.font_(font)
.string_(" Tempo:");

NumberBox(win, (100@30))
.align_(\right)
.font_(font)
.step_(0.01)
.scroll_step_(0.1)
.clipLo_(40)
.clipHi_(400)
.value_(TempoClock.default.tempo * 60)
.action_{ |v| TempoClock.default.tempo = (v.value / 60).postln};

StaticText(win, (40@10));
Button(win, (120@30))
.font_(font)
.states_([["Reload", Color.red, Color.white]])
.action_{ reload_func.value };
StaticText(win, (40@10));


StaticText(win, (100@30))
.font_(font)
.align_(\center)
.string_(" Click:");

metronome.button = Button(win, (100@30)).states_([
	["OFF", Color.white, Color.black],
	["ON", Color.white, Color.red(0.75)],	
])
.font_(font)
.action_{ |v|
	if ( v.value.booleanValue )
		{ metronome.player_instance = metronome.player.play(quant:4) }
		{ metronome.player_instance.stop }
};

metronome.display = 4.collect{
	StaticText(win, (15@10));
	UserView(win, (30@30)).background_(Color.red(0.25))
};
StaticText(win, (15@10));
StaticText(win, (800@10));
layout.nextLine;

4.do{ |i| StaticText(win, (200@30)).align_(\center).font_(font).string_(durations[i]) };


// Loopers
4.do{ |i|
	var font = Font("Synchro LET", 14);
	var bsize = 43;
	container[i] = ();
	container[i].view = CompositeView(win, (200@400));
	container[i].view.background_([Color.black, Color.white, Color.black, Color.white][i]);
	container[i].layout = container[i].view.addFlowLayout((5@5),(5@5));
	(numbufs/4).do{ |j|
		var current_buffer = (i * (numbufs/4))+j;
		// REC
		recorder_button[i][j] = Button(container[i].view, (bsize@bsize))
		.font_(font)
		.states_([
			["REC", Color.red, Color.white],
			["-", Color.white, Color.red]
		])
		.action_{ |v|
			("will record buffer: "++current_buffer).postln;
			Pbind(
				\instrument, \buf_recorder,
				\buf, Pseq([buffer[current_buffer]], 1)
			).play(quant:4);
			AppClock.sched(
				(TempoClock.default.tempo.reciprocal * durations[i])
				+ ((TempoClock.default.nextBar - TempoClock.default.beats) * TempoClock.default.beatDur),
				{ v.value_(0) }
			);
		};
		
		// PLAY
		player_button[i][j] = Button(container[i].view, (bsize@bsize))
		.font_(font)
		.states_([
			["PLAY", Color.green, Color.white],
			["STOP", Color.black, Color.green(0.5)]
		])
		.action_{ |v|
			if (v.value.booleanValue) {
				("will play buffer: "++current_buffer).postln;
				buffer[current_buffer].postln;
				player[current_buffer] = Pbind(
					\instrument, \buf_player,
					\buf, buffer[current_buffer],
					\dur, durations[i]
				).play(quant:4);
			} {
				("stopping buffer: "++current_buffer).postln;
				player[current_buffer].stop;
			}
		};
	};
};

StaticText(win, (800@100)).font_(font).string_("Record and play loops in different lengths as you wish.
If you change the tempo, be sure to hit 'refresh'
Have fun!!!");

// Players
metronome.player = Pbind(
	\instrument, \click,
	\freq, Pseq([1000, Pn(500,3)], inf)
);

metronome.display_player = Pbind(
	\type, \setProperties,
	\args, #[\background],
	\receiver, Pstutter(2, Pseq(metronome.display, inf)),
	\background, Pseq([Color.green, Color.red(0.25)], inf),
	\dur, Pseq([9,1]/10, inf)
).play(quant:4);

win.onClose_{
	metronome.display_player.stop;
	metronome.player_instance.stop;
	numbufs.do{ |i| buffer[i].free };
	SystemClock.clear;
	AppClock.clear;
	TempoClock.default.clear;
};

s = Server.default;
s.waitForBoot {

reload_func.value;

SynthDef(\click, { |freq|
	var snd = SinOsc.ar(freq, 0.5pi) * EnvGen.ar(Env.perc(0.001,0.05), doneAction:2);
	OffsetOut.ar(click_out, snd!2);
}).add;

SynthDef(\buf_recorder, { |buf|
	RecordBuf.ar(SoundIn.ar(0), buf, loop:0, doneAction:2)
}).add;

SynthDef(\buf_player, { |out, buf, rate=1|
	var snd = PlayBuf.ar(1, buf, rate, loop:0, doneAction:2);
	OffsetOut.ar(out, snd!2)
}).add;
};
raw 4657 chars (focus & ctrl+a+c to copy)
reception
comments
redFrik user 11 Feb'12 07:02

really nice! though it breaks when the server is not booted before running. reload_func should be changed to waitForBoot

rukano user 11 Feb'12 09:07

changed, thanks!