Update app.py

app.py

@@ -3,15 +3,20 @@ import gradio as gr
 def identity(audio):
     return audio, audio
 
+def enable_button():
+    return gr.Button(interactive=True)
+
 with gr.Blocks() as demo:
     with gr.Row():
         with gr.Column():
             audio_in = gr.Audio(sources=["microphone"], type="filepath")
-            run_button = gr.Button("Generate audio")
+            run_button = gr.Button("Generate audio", interactive=False)  # Start with the button disabled
         with gr.Column():
             audio_out = gr.Audio(type="filepath")
             path_out = gr.Textbox(label="audio filepath")
 
+    # Enable the button on upload
+    audio.upload(fn=enable_button, outputs=button)
     run_button.click(fn=identity, inputs=[audio_in], outputs=[audio_out, path_out])
 
 demo.launch()