add nanFallback for better errors

packages/superdough/sampler.mjs

@@ -1,4 +1,4 @@
-import { noteToMidi, valueToMidi } from './util.mjs';
+import { noteToMidi, valueToMidi, nanFallback } from './util.mjs';
 import { getAudioContext, registerSound } from './index.mjs';
 import { getEnvelope } from './helpers.mjs';
 import { logger } from './logger.mjs';
@@ -33,6 +33,7 @@ export const getSampleBufferSource = async (s, n, note, speed, freq, bank, resol
   const ac = getAudioContext();
   let sampleUrl;
   if (Array.isArray(bank)) {
+    n = nanFallback(n, 0);
     sampleUrl = bank[n % bank.length];
   } else {
     const midiDiff = (noteA) => noteToMidi(noteA) - midi;

packages/superdough/superdough.mjs

@@ -7,7 +7,7 @@ This program is free software: you can redistribute it and/or modify it under th
 import './feedbackdelay.mjs';
 import './reverb.mjs';
 import './vowel.mjs';
-import { clamp } from './util.mjs';
+import { clamp, nanFallback } from './util.mjs';
 import workletsUrl from './worklets.mjs?url';
 import { getFilter, gainNode } from './helpers.mjs';
 import { map } from 'nanostores';
@@ -168,6 +168,7 @@ export const superdough = async (value, deadline, hapDuration) => {
     size = 2,
     velocity = 1,
   } = value;
+  gain = nanFallback(gain, 1);
   gain *= velocity; // legacy fix for velocity
   let toDisconnect = []; // audio nodes that will be disconnected when the source has ended
   const onended = () => {

packages/superdough/util.mjs

@@ -51,3 +51,11 @@ export const valueToMidi = (value, fallbackValue) => {
   }
   return fallbackValue;
 };
+
+export function nanFallback(value, fallback) {
+  if (isNaN(Number(value))) {
+    logger(`"${value}" is not a number, falling back to ${fallback}`, 'warning');
+    return fallback;
+  }
+  return value;
+}