Update app.py

app.py

@@ -146,6 +146,8 @@ def analyze_audio(audio_file: str,
                   preprocess: bool = True,
                   preprocess_params: Optional[Dict[str, Any]] = None) -> AnalysisResults:
     results = AnalysisResults()
+    ends: List[float] = [] 
+    rows: List[Dict[str, Any]] = []
     if not os.path.exists(audio_file):
         results.message = f"Error: Input audio file '{audio_file}' not found."
         return results
@@ -200,6 +202,7 @@ def analyze_audio(audio_file: str,
         else:
             warn(results, "DIAR_SKIP", "HF_TOKEN not set. Skipping speaker diarization.")
         print("Assigning speakers to words...")
+        
         try:
             diarize_segments_for_assignment = []
             if diarize_output is not None:
@@ -247,7 +250,6 @@ def analyze_audio(audio_file: str,
                     except (TypeError, ValueError):
                         continue
             return None
-        rows: List[Dict[str, Any]] = []
         for seg in final.get("segments", []):
             seg_speaker = normalize_speaker(seg.get("speaker") or seg.get("speaker_label") or "Speaker_1")
             word_list = seg.get("words") or seg.get("tokens") or seg.get("items") or []
@@ -290,7 +292,6 @@ def analyze_audio(audio_file: str,
                 })
         rows = sorted(rows, key=lambda r: r.get("start", 0.0))
         results.timelineData = rows
-        ends = []
         for w in rows:
             e = w.get("end")
             f_e = force_float(e)