Update app.py

app.py

@@ -401,6 +401,7 @@ def crear_video(prompt_type, input_text, selected_voice, musica_file=None):
     video_final = None
     source_clips = []
     clips_to_concatenate = []
+    final_audio = None 
 
     try:
         # 1. Generar o usar guion