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Merge pull request #236 from tidalcycles/fix-mono

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fx on stereo speakers
This commit is contained in:
Felix Roos 2022-10-31 21:39:23 +01:00 committed by GitHub
commit ae6da0d6ef
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 19 additions and 7 deletions
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4
packages/webaudio/reverb.mjs
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@ -1,7 +1,7 @@
if (typeof AudioContext !== 'undefined') {
AudioContext.prototype.impulseResponse = function (duration) {
AudioContext.prototype.impulseResponse = function (duration, channels = 1) {
const length = this.sampleRate * duration;
const impulse = this.createBuffer(2, length, this.sampleRate);
const impulse = this.createBuffer(channels, length, this.sampleRate);
const IR = impulse.getChannelData(0);
for (let i = 0; i < length; i++) IR[i] = (2 * Math.random() - 1) * Math.pow(1 - i / length, duration);
return impulse;

22
packages/webaudio/worklets.mjs
View File

@ -22,8 +22,9 @@ class CoarseProcessor extends AudioWorkletProcessor {
this.notStarted = false;
output[0][0] = input[0][0];
for (let n = 1; n < blockSize; n++) {
if (n % coarse == 0) output[0][n] = input[0][n];
else output[0][n] = output[0][n - 1];
for (let o = 0; o < output.length; o++) {
output[o][n] = n % coarse == 0 ? input[0][n] : output[o][n - 1];
}
}
}
return this.notStarted || hasInput;
@ -52,11 +53,19 @@ class CrushProcessor extends AudioWorkletProcessor {
this.notStarted = false;
if (crush.length === 1) {
const x = Math.pow(2, crush[0] - 1);
for (let n = 0; n < blockSize; n++) output[0][n] = Math.round(input[0][n] * x) / x;
for (let n = 0; n < blockSize; n++) {
const value = Math.round(input[0][n] * x) / x;
for (let o = 0; o < output.length; o++) {
output[o][n] = value;
}
}
} else {
for (let n = 0; n < blockSize; n++) {
let x = Math.pow(2, crush[n] - 1);
output[0][n] = Math.round(input[0][n] * x) / x;
const value = Math.round(input[0][n] * x) / x;
for (let o = 0; o < output.length; o++) {
output[o][n] = value;
}
}
}
}
@ -86,7 +95,10 @@ class ShapeProcessor extends AudioWorkletProcessor {
if (hasInput) {
this.notStarted = false;
for (let n = 0; n < blockSize; n++) {
output[0][n] = ((1 + shape) * input[0][n]) / (1 + shape * Math.abs(input[0][n]));
const value = ((1 + shape) * input[0][n]) / (1 + shape * Math.abs(input[0][n]));
for (let o = 0; o < output.length; o++) {
output[o][n] = value;
}
}
}
return this.notStarted || hasInput;