Add an aperiodic wave resembling the upper register of a piano

xenharmonic-devs · Jul 19, 2024 · e65d90d · e65d90d
1 parent 370e367
commit e65d90d
Showing 1 changed file with 21 additions and 0 deletions.
diff --git a/src/synth.ts b/src/synth.ts
@@ -37,6 +37,7 @@ export const APERIODIC_WAVEFORMS = [
   'jublag',
   'ugal',
   'gender',
+  'piano',
   'tin',
   'bronze',
   'steel',
@@ -386,6 +387,26 @@ function initializeAperiodic(audioContext: BaseAudioContext) {
       tolerance
     )
   })
+
+  APERIODIC_WAVES['piano'] = computed(() => {
+    const freqs = [
+      0.998711340392508, 1.0012886596074921, 2.000000001915048, 3.0077319605175252,
+      4.024484537329971, 4.028350517109971, 5.052835053482418, 6.0953608281898495,
+      6.100515466619817, 7.149484540322233, 7.158505158532202, 8.221649488874554, 9.326030932401801,
+      9.3298969121818, 9.33891753039177, 10.449742272914, 10.457474232474, 10.466494850683969,
+      11.597938150756168
+    ]
+
+    const amps = [
+      0.9123120265773679, 0.7281477301038842, 0.5078045641543809, 0.8061314224800064,
+      0.3177244232370868, 0.15135058363038334, 0.12440135191000032, 0.045007651288955175,
+      0.050804443667738106, 0.029671376885221354, 0.023841125287306208, 0.01853341284211317,
+      0.02380292893502422, 0.024761095205029133, 0.020866326567241505, 0.0017670624571622458,
+      0.0024893662658642206, 0.0012043792096897129, 0.0014228119365412375
+    ].map((a) => a * 0.38)
+
+    return new AperiodicWave(audioContext, freqs, amps, maxNumberOfVoices, tolerance)
+  })
 }
 
 export function initializeCustomWaves(audioContext: BaseAudioContext) {