supports old documented way of loading wavetables:

packages/superdough/sampler.mjs

@@ -1,4 +1,4 @@
-import { noteToMidi, valueToMidi, getSoundIndex } from './util.mjs';
+import { noteToMidi, valueToMidi, getSoundIndex, getCommonSampleInfo } from './util.mjs';
 import { getAudioContext, registerSound, registerWaveTable } from './index.mjs';
 import { getADSRValues, getParamADSR, getPitchEnvelope, getVibratoOscillator } from './helpers.mjs';
 import { logger } from './logger.mjs';
@@ -22,39 +22,16 @@ function humanFileSize(bytes, si) {
   return bytes.toFixed(1) + ' ' + units[u];
 }
 
-// deduces relevant info for sample loading from hap.value and sample definition
-// it encapsulates the core sampler logic into a pure and synchronous function
-// hapValue: Hap.value, bank: sample bank definition for sound "s" (values in strudel.json format)
 export function getSampleInfo(hapValue, bank) {
-  const { s, n = 0, speed = 1.0 } = hapValue;
+  const {  speed = 1.0 } = hapValue;
-  let midi = valueToMidi(hapValue, 36);
+  const {transpose, url, index, midi, label} = getCommonSampleInfo(hapValue, bank)
-  let transpose = midi - 36; // C3 is middle C;
-  let sampleUrl;
-  let index = 0;
-  if (Array.isArray(bank)) {
-    index = getSoundIndex(n, bank.length);
-    sampleUrl = bank[index];
-  } else {
-    const midiDiff = (noteA) => noteToMidi(noteA) - midi;
-    // object format will expect keys as notes
-    const closest = Object.keys(bank)
-      .filter((k) => !k.startsWith('_'))
-      .reduce(
-        (closest, key, j) => (!closest || Math.abs(midiDiff(key)) < Math.abs(midiDiff(closest)) ? key : closest),
-        null,
-      );
-    transpose = -midiDiff(closest); // semitones to repitch
-    index = getSoundIndex(n, bank[closest].length);
-    sampleUrl = bank[closest][index];
-  }
-  const label = `${s}:${index}`;
   let playbackRate = Math.abs(speed) * Math.pow(2, transpose / 12);
-  return { transpose, sampleUrl, index, midi, label, playbackRate };
+  return { transpose, url, index, midi, label, playbackRate };
 }
 
 // takes hapValue and returns buffer + playbackRate.
 export const getSampleBuffer = async (hapValue, bank, resolveUrl) => {
-  let { sampleUrl, label, playbackRate } = getSampleInfo(hapValue, bank);
+  let { url: sampleUrl, label, playbackRate } = getSampleInfo(hapValue, bank);
   if (resolveUrl) {
     sampleUrl = await resolveUrl(sampleUrl);
   }

packages/superdough/util.mjs

@@ -76,4 +76,31 @@ export function cycleToSeconds(cycle, cps) {
 export function secondsToCycle(t, cps) {
   return t * cps;
 }
-
+// deduces relevant info for sample loading from hap.value and sample definition
+// it encapsulates the core sampler logic into a pure and synchronous function
+// hapValue: Hap.value, bank: sample bank definition for sound "s" (values in strudel.json format)
+export function getCommonSampleInfo(hapValue, bank) {
+  const { s, n = 0 } = hapValue;
+  let midi = valueToMidi(hapValue, 36);
+  let transpose = midi - 36; // C3 is middle C;
+  let url;
+  let index = 0;
+  if (Array.isArray(bank)) {
+    index = getSoundIndex(n, bank.length);
+    url = bank[index];
+  } else {
+    const midiDiff = (noteA) => noteToMidi(noteA) - midi;
+    // object format will expect keys as notes
+    const closest = Object.keys(bank)
+      .filter((k) => !k.startsWith('_'))
+      .reduce(
+        (closest, key, j) => (!closest || Math.abs(midiDiff(key)) < Math.abs(midiDiff(closest)) ? key : closest),
+        null,
+      );
+    transpose = -midiDiff(closest); // semitones to repitch
+    index = getSoundIndex(n, bank[closest].length);
+    url = bank[closest][index];
+  } 
+  const label = `${s}:${index}`;
+  return { transpose, url, index, midi, label };
+}

packages/superdough/wavetable.mjs

@@ -1,5 +1,5 @@
 import { getAudioContext, registerSound } from './index.mjs';
-import { getSoundIndex, valueToMidi } from './util.mjs';
+import { getCommonSampleInfo, getSoundIndex, valueToMidi } from './util.mjs';
 import {
   destroyAudioWorkletNode,
   getADSRValues,
@@ -38,12 +38,12 @@ export const WarpMode = Object.freeze({
   FLIP: 21,
 });
 
-async function loadWavetableFrames(url, label, frameLen = 256) {
+async function loadWavetableFrames(url, label, frameLen = 2048) {
   const ac = getAudioContext();
   const buf = await loadBuffer(url, ac, label);
   const ch0 = buf.getChannelData(0);
   const total = ch0.length;
-  const numFrames = Math.floor(total / frameLen);
+  const numFrames = Math.max(1,Math.floor(total / frameLen));
   const frames = new Array(numFrames);
   for (let i = 0; i < numFrames; i++) {
     const start = i * frameLen;
@@ -86,14 +86,8 @@ function humanFileSize(bytes, si) {
   return bytes.toFixed(1) + ' ' + units[u];
 }
 
-export function getTableInfo(hapValue, tableUrls) {
+export function getTableInfo(hapValue, urls) {
-  const { s, n = 0 } = hapValue;
+  return getCommonSampleInfo(hapValue,urls)
-  let midi = valueToMidi(hapValue, 36);
-  let transpose = midi - 36; // C3 is middle C;
-  const index = getSoundIndex(n, tableUrls.length);
-  const tableUrl = tableUrls[index];
-  const label = `${s}:${index}`;
-  return { transpose, tableUrl, index, midi, label };
 }
 
 const loadBuffer = (url, ac, label) => {
@@ -191,8 +185,8 @@ export async function onTriggerSynth(t, value, onended, bank, frameLen) {
     wtWarpMode = WarpMode[wtWarpMode.toUpperCase()] ?? WarpMode.NONE;
   }
   const frequency = getFrequencyFromValue(value);
-  const { tableUrl, label } = getTableInfo(value, bank);
+  const { url, label } = getTableInfo(value, bank);
-  const payload = await loadWavetableFrames(tableUrl, label, frameLen);
+  const payload = await loadWavetableFrames(url, label, frameLen);
   const holdEnd = t + duration;
   const envEnd = holdEnd + release + 0.01;
   const source = getWorklet(