Update pipeline/postprocess.py

pipeline/postprocess.py

@@ -39,13 +39,17 @@ def merge_segments(segments: list) -> list:
         ends_sentence     = current["text"].rstrip().endswith((".", "!", "?"))
         current_duration  = current["end"] - current["start"]
         is_short          = current_duration < 1.5
+        same_speaker      = current.get("speaker") is None or current.get("speaker") == seg.get("speaker")
 
         should_merge = (
             not ends_sentence
             and combined_duration <= MAX_DISPLAY
             and (
-                is_short
-                or (len(combined_text) <= MERGE_MAX_CHARS and gap <= MAX_GAP)
+                same_speaker
+                and (
+                    is_short
+                    or (len(combined_text) <= MERGE_MAX_CHARS and gap <= MAX_GAP)
+                )
             )
         )