Update app.py

app.py

@@ -42,7 +42,7 @@ def create_waveform_video(image, audio_path):
 
         # Combine image, waveform overlay, and audio into one video
         final_clip = CompositeVideoClip([img_clip, waveform_clip.set_opacity(0.7)]).set_audio(audio_clip)
-        final_clip.write_videofile(video_path, codec="libx264", fps=24)
+        final_clip.write_videofile(video_path, codec="libx264", fps=24, audio_codec="aac")
 
         # Cleanup temporary files
         os.remove(image_path)
@@ -63,4 +63,4 @@ iface = gr.Interface(
     title="Image + Audio to Video with Waveform Overlay"
 )
 
-iface.launch(debug = True)
+iface.launch(debug=True)