format
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b8d2d02466
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65f1760fad
3 changed files with 11 additions and 18 deletions
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@ -446,19 +446,18 @@ export const { coarse } = registerControl('coarse');
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export const { drive } = registerControl('drive');
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/**
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* Allows you to set the output channels on the interface
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* Create byte beats with custom expressions
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*
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* @name byteBeatExpression
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* @synonyms bbexpr
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*
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* @param {number | Pattern} byteBeatExpression pattern the output channels
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* @example
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* note("e a d b g").channels("3:4")
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* s("bytebeat").bbexpr('t*(t>>15^t>>66)')
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*
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*/
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export const { byteBeatExpression, bbexpr } = registerControl('byteBeatExpression', 'bbexpr');
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/**
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* Allows you to set the output channels on the interface
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*
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@ -144,14 +144,13 @@ export function registerSynthSounds() {
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{ prebake: true, type: 'synth' },
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);
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registerSound(
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'bytebeat',
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(begin, value, onended) => {
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const ac = getAudioContext();
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let { byteBeatExpression } = value;
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let { duration} = value;
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let { duration } = value;
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const [attack, decay, sustain, release] = getADSRValues(
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[value.attack, value.decay, value.sustain, value.release],
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'linear',
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@ -163,7 +162,6 @@ export function registerSynthSounds() {
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ac,
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'byte-beat-processor',
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{
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begin,
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end,
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},
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@ -172,14 +170,13 @@ export function registerSynthSounds() {
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},
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);
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o.port.postMessage(byteBeatExpression);
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let envGain = gainNode(1);
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envGain = o.connect(envGain);
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getParamADSR(envGain.gain, attack, decay, sustain, release, 0, 1, begin, holdend, 'linear');
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let timeoutNode = webAudioTimeout(
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ac,
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() => {
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@ -762,12 +762,10 @@ class PulseOscillatorProcessor extends AudioWorkletProcessor {
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registerProcessor('pulse-oscillator', PulseOscillatorProcessor);
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class ByteBeatProcessor extends AudioWorkletProcessor {
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constructor() {
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super();
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this.bb = '0'
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this.bb = '0';
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this.port.onmessage = (event) => {
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this.bb = event.data;
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};
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@ -801,20 +799,19 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
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if (currentTime >= params.end[0]) {
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return false;
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}
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const bb = this.bb
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const bb = this.bb;
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const f = Function('t', 'return ' + bb)
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const f = Function('t', 'return ' + bb);
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const output = outputs[0];
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for (let i = 0; i < (output[0].length ?? 0); i++) {
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let t = currentTime
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t *= sampleRate
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const signal = ((f(t)&255)/127.5 - 1)/4
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let t = currentTime;
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t *= sampleRate;
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const signal = ((f(t) & 255) / 127.5 - 1) / 4;
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for (let o = 0; o < output.length; o++) {
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// Combination of both oscillators with envelope applied
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output[o][i] = signal
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output[o][i] = signal;
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}
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}
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