Quite a big update

src/lib/audio/processors/ExpFadeOut.ts

@@ -0,0 +1,27 @@
+import type { AudioProcessor } from './AudioProcessor';
+
+export class ExpFadeOut implements AudioProcessor {
+	getName(): string {
+		return 'Fade Out (Exp)';
+	}
+
+	getDescription(): string {
+		return 'Applies an exponential fade from current level to silence';
+	}
+
+	process(leftIn: Float32Array, rightIn: Float32Array): [Float32Array, Float32Array] {
+		const length = leftIn.length;
+
+		const leftOut = new Float32Array(length);
+		const rightOut = new Float32Array(length);
+
+		for (let i = 0; i < length; i++) {
+			const t = i / length;
+			const gain = Math.exp(-5.0 * t);
+			leftOut[i] = leftIn[i] * gain;
+			rightOut[i] = rightIn[i] * gain;
+		}
+
+		return [leftOut, rightOut];
+	}
+}