Update app.py

app.py

@@ -153,6 +153,14 @@ class RAGVoiceHandler(AsyncStreamHandler):
         self.input_buffer = bytearray()
         self.last_input_time = asyncio.get_event_loop().time()
 
+    def copy(self) -> "RAGVoiceHandler":
+        # Return a new instance with the same configuration
+        return RAGVoiceHandler(
+            expected_layout="mono",
+            output_sample_rate=self.output_sample_rate,
+            output_frame_size=self.output_frame_size,
+        )
+
     async def stream(self) -> AsyncGenerator[bytes, None]:
         # Continuously check for new audio; if a short silence occurs (timeout), process the buffered utterance.
         while not self.quit.is_set():