Sync with engine v5

src/voice/turn_start.py

@@ -18,7 +18,12 @@ _COUNTABLE_TEXT_RE = re.compile(r"[\w\u4e00-\u9fff]", re.UNICODE)
 
 
 class InterruptionGateUserTurnStartStrategy(BaseUserTurnStartStrategy):
-    """Starts user turns only after likely intentional speech."""
+    """Starts user turns only after likely intentional speech.
+
+    When the assistant is speaking, short background speech should not barge in
+    unless it is a common answer to a yes/no style question. When the assistant
+    is not speaking, any non-empty transcript can start a normal user turn.
+    """
 
     def __init__(
         self,