Merge branch 'main' into patterns-tab

packages/superdough/README.md

@@ -67,6 +67,10 @@ superdough({ s: 'bd', delay: 0.5 }, 0, 1);
   - `crush`: amplitude bit crusher using given number of bits
   - `shape`: distortion effect from 0 (none) to 1 (full). might get loud!
   - `pan`: stereo panning from 0 (left) to 1 (right)
+  - `phaser`: sets the speed of the modulation
+  - `phaserdepth`: the amount the signal is affected by the phaser effect.
+  - `phasersweep`: the frequency sweep range of the lfo for the phaser effect.
+  - `phasercenter`: the amount the signal is affected by the phaser effect.
   - `vowel`: vowel filter. possible values: "a", "e", "i", "o", "u"
   - `delay`: delay mix
   - `delayfeedback`: delay feedback

packages/superdough/package.json

@@ -1,6 +1,6 @@
 {
   "name": "superdough",
-  "version": "0.9.10",
+  "version": "0.9.11",
   "description": "simple web audio synth and sampler intended for live coding. inspired by superdirt and webdirt.",
   "main": "index.mjs",
   "type": "module",

packages/superdough/sampler.mjs

@@ -58,7 +58,6 @@ export const getSampleBufferSource = async (s, n, note, speed, freq, bank, resol
   const bufferSource = ac.createBufferSource();
   bufferSource.buffer = buffer;
   const playbackRate = 1.0 * Math.pow(2, transpose / 12);
-  // bufferSource.playbackRate.value = Math.pow(2, transpose / 12);
   bufferSource.playbackRate.value = playbackRate;
   return bufferSource;
 };
@@ -163,9 +162,17 @@ export const samples = async (sampleMap, baseUrl = sampleMap._base || '', option
     if (handler) {
       return handler(sampleMap);
     }
+    if (sampleMap.startsWith('bubo:')) {
+      const [_, repo] = sampleMap.split(':');
+      sampleMap = `github:Bubobubobubobubo/dough-${repo}`;
+    }
     if (sampleMap.startsWith('github:')) {
       let [_, path] = sampleMap.split('github:');
       path = path.endsWith('/') ? path.slice(0, -1) : path;
+      if (path.split('/').length === 2) {
+        // assume main as default branch if none set
+        path += '/main';
+      }
       sampleMap = `https://raw.githubusercontent.com/${path}/strudel.json`;
     }
     if (sampleMap.startsWith('shabda:')) {
@@ -233,6 +240,8 @@ export async function onTriggerSample(t, value, onended, bank, resolveUrl) {
     begin = 0,
     loopEnd = 1,
     end = 1,
+    vib,
+    vibmod = 0.5,
   } = value;
   // load sample
   if (speed === 0) {
@@ -248,6 +257,19 @@ export async function onTriggerSample(t, value, onended, bank, resolveUrl) {
 
   const bufferSource = await getSampleBufferSource(s, n, note, speed, freq, bank, resolveUrl);
 
+  // vibrato
+  let vibratoOscillator;
+  if (vib > 0) {
+    vibratoOscillator = getAudioContext().createOscillator();
+    vibratoOscillator.frequency.value = vib;
+    const gain = getAudioContext().createGain();
+    // Vibmod is the amount of vibrato, in semitones
+    gain.gain.value = vibmod * 100;
+    vibratoOscillator.connect(gain);
+    gain.connect(bufferSource.detune);
+    vibratoOscillator.start(0);
+  }
+
   // asny stuff above took too long?
   if (ac.currentTime > t) {
     logger(`[sampler] still loading sound "${s}:${n}"`, 'highlight');
@@ -279,6 +301,7 @@ export async function onTriggerSample(t, value, onended, bank, resolveUrl) {
   envelope.connect(out);
   bufferSource.onended = function () {
     bufferSource.disconnect();
+    vibratoOscillator?.stop();
     envelope.disconnect();
     out.disconnect();
     onended();

packages/superdough/superdough.mjs

@@ -112,6 +112,48 @@ function getDelay(orbit, delaytime, delayfeedback, t) {
   return delays[orbit];
 }
 
+// each orbit will have its own lfo
+const phaserLFOs = {};
+function getPhaser(orbit, t, speed = 1, depth = 0.5, centerFrequency = 1000, sweep = 2000) {
+  //gain
+  const ac = getAudioContext();
+  const lfoGain = ac.createGain();
+  lfoGain.gain.value = sweep;
+
+  //LFO
+  if (phaserLFOs[orbit] == null) {
+    phaserLFOs[orbit] = ac.createOscillator();
+    phaserLFOs[orbit].frequency.value = speed;
+    phaserLFOs[orbit].type = 'sine';
+    phaserLFOs[orbit].start();
+  }
+
+  phaserLFOs[orbit].connect(lfoGain);
+  if (phaserLFOs[orbit].frequency.value != speed) {
+    phaserLFOs[orbit].frequency.setValueAtTime(speed, t);
+  }
+
+  //filters
+  const numStages = 2; //num of filters in series
+  let fOffset = 0;
+  const filterChain = [];
+  for (let i = 0; i < numStages; i++) {
+    const filter = ac.createBiquadFilter();
+    filter.type = 'notch';
+    filter.gain.value = 1;
+    filter.frequency.value = centerFrequency + fOffset;
+    filter.Q.value = 2 - Math.min(Math.max(depth * 2, 0), 1.9);
+
+    lfoGain.connect(filter.detune);
+    fOffset += 282;
+    if (i > 0) {
+      filterChain[i - 1].connect(filter);
+    }
+    filterChain.push(filter);
+  }
+  return filterChain[filterChain.length - 1];
+}
+
 let reverbs = {};
 
 let hasChanged = (now, before) => now !== undefined && now !== before;
@@ -226,6 +268,12 @@ export const superdough = async (value, deadline, hapDuration) => {
     bpsustain = 1,
     bprelease = 0.01,
     bandq = 1,
+
+    //phaser
+    phaser,
+    phaserdepth = 0.75,
+    phasersweep,
+    phasercenter,
     //
     coarse,
     crush,
@@ -261,6 +309,7 @@ export const superdough = async (value, deadline, hapDuration) => {
   if (bank && s) {
     s = `${bank}_${s}`;
   }
+
   // get source AudioNode
   let sourceNode;
   if (source) {
@@ -378,6 +427,11 @@ export const superdough = async (value, deadline, hapDuration) => {
     panner.pan.value = 2 * pan - 1;
     chain.push(panner);
   }
+  // phaser
+  if (phaser !== undefined && phaserdepth > 0) {
+    const phaserFX = getPhaser(orbit, t, phaser, phaserdepth, phasercenter, phasersweep);
+    chain.push(phaserFX);
+  }
 
   // last gain
   const post = gainNode(postgain);