After the 2024 POE1 update, player voice files are no longer exposed to be swapped out. The files are still present in the directory but modifying or removing them has no effect in game. I also looked for soundbank files which is common in a lot of games, but could not find any. 

How can we override player voices since this update?

Did you ever figure out a solution to this? I've also been unsuccesful adding custom voices to the game. The folder structure I've seen people mention 10 years ago isn't there for me and trying to create it manually or in the assetbundles/override folder does nothing. I really want to dive back into the franchise with the advent of turn-based mode.