Update issue_detection.py

issue_detection.py

@@ -96,7 +96,7 @@ def detect_audio_issues(spectral, time_stats):
     # ============================================================
 
     if flatness is not None:
-        hf_flat = np.mean(flatness[-20:])
+        hf_flat = flatness
 
         if hf_flat > 0.40 and len(notches) >= 3:
             issues.append((