Update app.py

app.py

@@ -12,7 +12,10 @@ def convert_to_mp4_with_aac(input_path, output_path):
     return output_path
 
 def load_audio(audio_listed):
-    return f"data/audio/{audio_listed}"
+    if audio_listed is None:
+        return None
+    else:
+        return f"data/audio/{audio_listed}"
 
 def execute_command(command: str) -> None:
     subprocess.run(command, check=True)
@@ -150,7 +153,7 @@ with gr.Blocks(css=css) as demo:
                     examples_per_page=5
                 )
                 with gr.Row():
-                    gr.ClearButton([audio_input, image_path])
+                    gr.ClearButton([audio_input, image_path, audio_list])
                     run_btn = gr.Button("Run", elem_id="run-btn")
             with gr.Column():
                 output_video = gr.Video(format="mp4")