[Sanguin]

Originally Posted by Kulyok

Yes, it is possible that your saved game will be all right, but you will almost certainly have to use "string fixers" for your characters, because their soundsets will be messed up.

For Kelsey, select him and press K key.
For BG1 NPC Project characters, click on them(player-initiated dialogue will show up) and choose "your voice is strange" option.

Good luck, and enjoy your game.

Excellent! Thanks a lot!