fix typo

app.py

@@ -42,8 +42,8 @@ def extract_waveform_animation(audio_file):
 # Define the Gradio interface
 iface = gr.Interface(
     fn=extract_waveform_animation,
-    inputs=gr.Audio(source="upload", type="file"),
-    outputs=gr.Video(type="file"),
+    inputs=gr.Audio(type="filepath"),
+    outputs=gr.Video(),
     description="Upload an audio file to extract a video animation from its waveform."
 )