update threshold

app.py

@@ -724,21 +724,16 @@ class WhisperTranscriber:
         for dseg in diarization_segments:
             d_start = float(dseg["start"])
             d_end = float(dseg["end"])
-            has_overlap = False
-            for seg in transcription_results:
-                # Instead of just checking if any single segment covers 60%,
-                # let's calculate total coverage from ALL transcription segments
-                total_coverage = 0.0
-                for s in transcription_results:
-                    overlap = interval_overlap(d_start, d_end, float(s["start"]), float(s["end"]))
-                    total_coverage += overlap
-
-                coverage_ratio = total_coverage / (d_end - d_start)
-                if coverage_ratio >= 0.85:  # Less than 80% covered
-                    # This diarization segment needs re-transcription
-                    has_overlap = True
-                    break
-            if not has_overlap:
+            # Calculate total coverage
+            total_coverage = 0.0
+            for s in transcription_results:
+                overlap = interval_overlap(d_start, d_end, float(s["start"]), float(s["end"]))
+                total_coverage += overlap
+
+            coverage_ratio = total_coverage / (d_end - d_start)
+            is_well_covered = coverage_ratio >= 0.85  # 85% or more covered
+
+            if not is_well_covered and (d_end - d_start) > 1.5:  # If poorly covered, add to unmatched list
                 unmatched_diarization_segments.append({
                     "start": d_start,
                     "end": d_end,