Enhance Ableton export logic with scaled note velocity and filter fader canonicalization

tests/ableton-automation.test.ts

@@ -5,6 +5,7 @@ import {
   buildClipEnvelopes,
   convertFaderValue,
   getFaderValueAt,
+  getScaledNoteVelocity,
 } from '../src/lib/exporters/ableton/automation';
 import { AblGroupPatternOccurrence, AblTrack } from '../src/lib/transformers/ableton';
 import { FaderParam } from '../src/types/types';
@@ -49,6 +50,28 @@ const track = {
 test('uses original note velocity until a VEL point is reached', () => {
   assert.equal(getFaderValueAt(occurrence, FaderParam.VEL, 96), undefined);
   assert.equal(getFaderValueAt(occurrence, FaderParam.VEL, 192), 0.5);
+  assert.equal(getScaledNoteVelocity(101, occurrence, 96), 101);
+  assert.equal(getScaledNoteVelocity(101, occurrence, 192), 51);
+});
+
+test('scales P07-like note velocities with static and automated VEL values', () => {
+  const staticVelocity = {
+    ...occurrence,
+    faderParams: {
+      ...occurrence.faderParams,
+      [FaderParam.VEL]: 0.5325199961662292,
+    },
+    faderAutomation: [
+      { parameter: FaderParam.VEL, position: 192, value: 0.25, flags: 0 },
+    ],
+  };
+
+  assert.deepEqual(
+    [127, 127, 48].map((velocity) => getScaledNoteVelocity(velocity, staticVelocity, 96)),
+    [68, 68, 26],
+  );
+  assert.equal(getScaledNoteVelocity(127, staticVelocity, 192), 32);
+  assert.equal(getScaledNoteVelocity(0, staticVelocity, 192), 1);
 });
 
 test('preserves each pad pitch offset while applying group PTC automation', () => {