fix: fix audio input

app.py

@@ -47,7 +47,7 @@ def process_audio(audio: tuple, state: AppState):
     else:
         state.stream = np.concatenate((state.stream, audio[1]))
 
-    return None, state
+    return state  # Only state is returned
 
 
 def update_or_append_conversation(conversation, id, role, new_content):
@@ -235,7 +235,7 @@ with gr.Blocks() as demo:
     stream = input_audio.stream(
         process_audio,
         [input_audio, state],
-        [input_audio, state],
+        [state],
         stream_every=0.25,  # Reduced to make it more responsive
         time_limit=60,  # Increased to allow for longer messages
     )