how to add background effects on voice acting?

[DnALANGE]

Do you have an FULL CONVERSION MOD?
Meaning you can change everything about the game.
With a custom story unfortunatly you can NOT change the background.
If you want to create it just for yourself you can do that easely.
Then go here :
Amnesia - The Dark Descent\redist\main_menu\main
Open the menu_bg.map and check how they did it.
We can tell how to do, but might be cooler to learn a little yourself.
Check the billboard, and see where it loading from.
Then make your own logo and overwrite it in the folder where the billboard is coming from.
I DO NOT RECOMMEND OVERWRITING ORIGINAL ASSETS!!!
Do that on your own risk OR if you know what you are doing!
HINT: Always make a backup from a folder your are changing \ adding things.