buffers can now be repitched (still with aliasing)

packages/supradough/dough-worklet.mjs

@@ -10,10 +10,10 @@ class DoughProcessor extends AudioWorkletProcessor {
       if (event.data.spawn) {
         this.dough.scheduleSpawn(event.data.spawn);
       } else if (event.data.sample) {
-        this.dough.loadSample(event.data.sample, event.data.channels);
+        this.dough.loadSample(event.data.sample, event.data.channels, event.data.sampleRate);
       } else if (event.data.samples) {
-        event.data.samples.forEach(([name, channels]) => {
-          this.dough.loadSample(name, channels);
+        event.data.samples.forEach(([name, channels, sampleRate]) => {
+          this.dough.loadSample(name, channels, sampleRate);
         });
       } else {
         console.log('unrecognized event type', event.data);

packages/supradough/dough.mjs

@@ -385,14 +385,16 @@ export class Distort {
 
 export class BufferPlayer {
   static samples = new Map();
-  channels = [];
+  buffer; // { channels: Float32Array, sampleRate: number }
   pos = 0;
+  sampleFreq = 261.626; // middle c
   update(freq, channel = 0) {
-    if (this.pos >= this.channels[channel].length) {
+    if (this.pos >= this.buffer.channels[channel].length) {
       return 0;
     }
-    let s = this.channels[channel][this.pos];
-    this.pos++;
+    const speed = ((freq / this.sampleFreq) * this.buffer.sampleRate) / SAMPLE_RATE;
+    let s = this.buffer.channels[channel][Math.floor(this.pos)];
+    this.pos = this.pos + speed;
     return s;
   }
 }
@@ -576,7 +578,8 @@ export class DoughVoice {
       this._sound = new SourceClass();
     } else if (BufferPlayer.samples.has(this.s)) {
       this._sample = new BufferPlayer();
-      this._sample.channels = BufferPlayer.samples.get(this.s);
+      const buffer = BufferPlayer.samples.get(this.s);
+      this._sample.buffer = buffer;
     } else {
       console.warn('sound not found', this.s);
     }
@@ -738,7 +741,10 @@ export class DoughVoice {
     const env = this._adsr.update(t, gate, this.attack, this.decay, this.sustain, this.release);
     s = s * env;
 
-    s = s * this.postgain * 0.2;
+    s = s * this.postgain;
+    if (!this._sample) {
+      s = s * 0.2; // turn down waveforms
+    }
 
     if (this.pan === 0.5) {
       this.l = this.r = s; // mono
@@ -770,8 +776,8 @@ export class Dough {
     this._delayL = new Delay();
     this._delayR = new Delay();
   }
-  loadSample(name, channels) {
-    BufferPlayer.samples.set(name, channels);
+  loadSample(name, channels, sampleRate) {
+    BufferPlayer.samples.set(name, { channels, sampleRate });
   }
   scheduleSpawn(value) {
     if (value._begin === undefined) {

packages/webaudio/supradough.mjs

@@ -118,7 +118,7 @@ let samples = {
     'https://raw.githubusercontent.com/tidalcycles/Dirt-Samples/master/numbers/7.wav',
     'https://raw.githubusercontent.com/tidalcycles/Dirt-Samples/master/numbers/8.wav',
   ],
-  piano: ['https://raw.githubusercontent.com/felixroos/dough-samples/refs/heads/main/piano/A3v8.mp3'],
+  piano: ['https://raw.githubusercontent.com/felixroos/dough-samples/refs/heads/main/piano/C3v8.mp3'],
   flute: ['https://raw.githubusercontent.com/felixroos/samples/refs/heads/main/flute/c4.mp3'],
   bd: [
     'https://raw.githubusercontent.com/geikha/tidal-drum-machines/15eac73c5e878550f91d864a4863e014799403f1/machines/RolandTR909/rolandtr909-bd/Bassdrum-01.wav',
@@ -126,7 +126,7 @@ let samples = {
 };
 // for some reason, only piano and flute work.. is it because mp3??
 
-async function loadSampleChannels(url) {
+async function loadSampleChannels(key, url) {
   const buffer = await fetch(url)
     .then((res) => res.arrayBuffer())
     .then((buf) => getAudioContext().decodeAudioData(buf));
@@ -134,7 +134,7 @@ async function loadSampleChannels(url) {
   for (let i = 0; i < buffer.numberOfChannels; i++) {
     channels.push(buffer.getChannelData(i));
   }
-  return channels;
+  return [key, channels, buffer.sampleRate];
 }
 
 let loaded = false;
@@ -147,9 +147,7 @@ export async function doughsample() {
   const sampleMap = await Promise.all(
     Object.entries(samples).map(async ([key, url]) => {
       url = url[0];
-      const channels = await loadSampleChannels(url);
-      // console.log(key, 'url', url, channels);
-      return [key, channels];
+      return loadSampleChannels(key, url);
     }),
   );
   console.log('sampleMap', sampleMap);