feat: Improve resonance curve of filters

packages/superdough/superdough.mjs

@@ -123,9 +123,9 @@ const defaultDefaultValues = {
   density: '.03',
   ftype: '12db',
   fanchor: 0,
-  resonance: 1,
-  hresonance: 1,
-  bandq: 1,
+  resonance: 0.183,
+  hresonance: 0.183,
+  bandq: 0.183,
   channels: [1, 2],
   phaserdepth: 0.75,
   shapevol: 1,
@@ -182,6 +182,9 @@ export const getAudioContext = () => {
 export function getAudioContextCurrentTime() {
   return getAudioContext().currentTime;
 }
+function applyResonanceCurve(res) {
+  return Math.min(30.03, Math.pow(res * 5.48, 2));
+}
 
 let workletsLoading;
 function loadWorklets() {
@@ -526,6 +529,10 @@ export const superdough = async (value, t, hapDuration) => {
     compressorRelease,
   } = value;
 
+  resonance = applyResonanceCurve(resonance);
+  hresonance = applyResonanceCurve(hresonance);
+  bandq = applyResonanceCurve(bandq);
+
   gain = applyGainCurve(nanFallback(gain, 1));
   postgain = applyGainCurve(postgain);
   shapevol = applyGainCurve(shapevol);

packages/superdough/worklets.mjs

@@ -295,7 +295,7 @@ class LadderProcessor extends AudioWorkletProcessor {
     cutoff = (cutoff * 2 * _PI) / sampleRate;
     cutoff = cutoff > 1 ? 1 : cutoff;
 
-    const k = Math.min(8, resonance * 0.4);
+    const k = Math.min(8, resonance * 0.13);
     //               drive makeup  * resonance volume loss makeup
     let makeupgain = (1 / drive) * Math.min(1.75, 1 + k);