Here’s something interesting I came across. While I do agree that I’m not a fan of the high pitched voices for the battle droids, and while most of it has been removed from this edit, there are still some bits and pieces you can hear it. This guy here attempts to replace them all using voice clips taken from video games from the 2000s such as the original Battlefront games and the Revenge of the Sith game.
https://www.reddit.com/r/fanedits/comments/12o2ap2/hi_again_yesterday_i_posted_a_short_clip_in_which/
I think the mixing needs some work but I like the idea of matching the droid voices to the rest of the trilogy, especially since you can still hear the squeaky voices at a few points in Labyrinth of Evil.