diff --git a/lib/hooks/useMultiTrackPlayer.ts b/lib/hooks/useMultiTrackPlayer.ts
index ba41797..2bdd6bc 100644
--- a/lib/hooks/useMultiTrackPlayer.ts
+++ b/lib/hooks/useMultiTrackPlayer.ts
@@ -61,15 +61,15 @@ export function useMultiTrackPlayer(tracks: Track[], masterVolume: number = 1) {
       const track = tracksRef.current[index];
       if (!track) return;
 
-      const dataArray = new Uint8Array(analyser.frequencyBinCount);
-      analyser.getByteTimeDomainData(dataArray);
+      const dataArray = new Float32Array(analyser.fftSize);
+      analyser.getFloatTimeDomainData(dataArray);
 
-      // Calculate peak level (more responsive than RMS for visual meters)
+      // Calculate peak level using float data (-1 to +1 range)
       let peak = 0;
       for (let i = 0; i < dataArray.length; i++) {
-        const normalized = Math.abs((dataArray[i] - 128) / 128);
-        if (normalized > peak) {
-          peak = normalized;
+        const abs = Math.abs(dataArray[i]);
+        if (abs > peak) {
+          peak = abs;
         }
       }
 
diff --git a/lib/hooks/useRecording.ts b/lib/hooks/useRecording.ts
index 606a98d..a120a2b 100644
--- a/lib/hooks/useRecording.ts
+++ b/lib/hooks/useRecording.ts
@@ -71,19 +71,19 @@ export function useRecording(): UseRecordingReturn {
     if (!analyserRef.current) return;
 
     const analyser = analyserRef.current;
-    const dataArray = new Uint8Array(analyser.frequencyBinCount);
+    const dataArray = new Float32Array(analyser.fftSize);
 
     const updateLevel = () => {
       if (!isMonitoringRef.current) return;
 
-      analyser.getByteTimeDomainData(dataArray);
+      analyser.getFloatTimeDomainData(dataArray);
 
-      // Calculate peak level (more responsive than RMS for visual meters)
+      // Calculate peak level using float data (-1 to +1 range)
       let peak = 0;
       for (let i = 0; i < dataArray.length; i++) {
-        const normalized = Math.abs((dataArray[i] - 128) / 128);
-        if (normalized > peak) {
-          peak = normalized;
+        const abs = Math.abs(dataArray[i]);
+        if (abs > peak) {
+          peak = abs;
         }
       }