Ajout du sampler et de l'input

src/lib/audio/processors/Normalize.ts

@@ -0,0 +1,39 @@
+import type { AudioProcessor } from "./AudioProcessor";
+
+export class Normalize implements AudioProcessor {
+  getName(): string {
+    return "Normalize";
+  }
+
+  getDescription(): string {
+    return "Normalizes audio to maximum amplitude without clipping";
+  }
+
+  async process(
+    leftChannel: Float32Array,
+    rightChannel: Float32Array
+  ): Promise<[Float32Array, Float32Array]> {
+    let maxAmplitude = 0;
+
+    for (let i = 0; i < leftChannel.length; i++) {
+      maxAmplitude = Math.max(maxAmplitude, Math.abs(leftChannel[i]));
+      maxAmplitude = Math.max(maxAmplitude, Math.abs(rightChannel[i]));
+    }
+
+    if (maxAmplitude === 0) {
+      return [leftChannel, rightChannel];
+    }
+
+    const gain = 1.0 / maxAmplitude;
+
+    const newLeft = new Float32Array(leftChannel.length);
+    const newRight = new Float32Array(rightChannel.length);
+
+    for (let i = 0; i < leftChannel.length; i++) {
+      newLeft[i] = leftChannel[i] * gain;
+      newRight[i] = rightChannel[i] * gain;
+    }
+
+    return [newLeft, newRight];
+  }
+}