Add buttion

app.py

@@ -375,11 +375,11 @@ def chat_interface():
         )
         response_textbox = gr.Textbox(label="Response Text")
         audio_output = gr.Audio(label="Response Audio")
+        btn = gr.Button(value="Submit")
 
-        # Link inputs and outputs
-        audio_input.change(
-            fn=get_chatbot_response,
-            inputs=audio_input,
+        btn.click(
+            get_chatbot_response,
+            inputs=[audio_input],
             outputs=[response_textbox, audio_output],
         )