Update app.py

app.py

@@ -1680,7 +1680,7 @@ with gr.Blocks(theme='gradio/soft') as demo:
             clear_button = gr.Button("Clear")
             clear_button.click(lambda: [None, None], outputs=[chat_input, state])
 
-             def stop_audio():
+            def stop_audio():
                 audio_output.stop()
                 return None