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playing with quantization

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This commit is contained in:
Eric Rosenbaum 2016-08-16 16:32:35 -04:00
parent 27184762bd
commit d5e46535e8
4 changed files with 12 additions and 7 deletions
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playground/sounds/this_is_a_test.mp3 Normal file
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playground/sounds/who_put_the_bomp.mp3 Normal file
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4
src/blocks/scratch3_sound.js
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@ -48,7 +48,7 @@ Scratch3SoundBlocks.prototype.playNoteForBeats = function (args, util) {
return new Promise(function(resolve) {
setTimeout(function() {
resolve();
}, 1000 * args.BEATS);
}, (1000 * args.BEATS) );
});
};
@ -61,7 +61,7 @@ Scratch3SoundBlocks.prototype.playDrumForBeats = function (args, util) {
return new Promise(function(resolve) {
setTimeout(function() {
resolve();
}, 1000 * args.BEATS);
}, (1000 * args.BEATS) );
});
};

15
src/worker.js
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@ -18,6 +18,11 @@ function VirtualMachine () {
var tone = new Tone();
Tone.Transport.start();
var quantizeUnit = '@8n';
// var quantizeUnit = '';
// effects
var delay = new Tone.FeedbackDelay(0.25, 0.5);
@ -43,7 +48,7 @@ function VirtualMachine () {
// sounds
var soundFileNames = ['meow', 'boing', 'cave', 'drip_drop', 'drum_machine', 'eggs', 'zoop'];
var soundFileNames = ['meow','boing','this_is_a_test','who_put_the_bomp','cave','drip_drop','drum_machine','eggs','zoop'];
var soundSamplers = loadSoundFiles(soundFileNames);
// polyphonic samplers
@ -112,17 +117,17 @@ function VirtualMachine () {
function playNoteForBeats(note, beats) {
var midiNote = scaleNoteToMidiNote(note, currentScale, rootNote);
var freq = midiToFreq(midiNote);
synth.triggerAttackRelease(freq, beats);
synth.triggerAttackRelease(freq, beats, quantizeUnit);
}
// onmessage calls are converted into emitted events.
instance.vmWorker.onmessage = function (e) {
switch (e.data.method) {
case 'playsound':
soundSamplers[e.data.soundnum].nextVoice().triggerAttack();
soundSamplers[e.data.soundnum].nextVoice().triggerAttack(0, quantizeUnit);
break;
case 'playsoundwithpitch':
soundSamplers[e.data.soundnum].nextVoice().triggerAttack(e.data.pitch);
soundSamplers[e.data.soundnum].nextVoice().triggerAttack(e.data.pitch, quantizeUnit);
break;
case 'playnoteforbeats':
playNoteForBeats(e.data.note, e.data.beats);
@ -137,7 +142,7 @@ function VirtualMachine () {
case 'playdrumforbeats':
case 'playdrum':
var drumNum = e.data.drum - 1; // one-indexing
drumSamplers[drumNum].nextVoice().triggerAttack();
drumSamplers[drumNum].nextVoice().triggerAttack(0, quantizeUnit);
break;
case 'seteffect' :
switch (e.data.effect) {