Update app.py

app.py

@@ -339,7 +339,7 @@ async def concat_story_audio(story: StoryCreationDTO, base_output: str, final_pa
 
                 # Adjust volume
                 bg_audio = bg_audio - (1 - scene.bgMusic.volume) * 30  # approximate
-                bg_audio = bg_audio - 25
+                bg_audio = bg_audio - 15
                 # Loop if shorter than scene
                 if len(bg_audio) < len(scene_audio):
                     loops = (len(scene_audio) // len(bg_audio)) + 1