This is an issue that I experienced since last year game release to this day (patch 3.01). Sometimes when characters are speaking and their lines have a recorded voice, they start in the middle of a sentence, completely ommiting the first words. Most notably this happens with Hiravias and Maneha, but there were other cases as well.
So, imagine that this is the line seen on screen:
"My name is some random NPC, and I came from a distant land to kill dragons and find a treasure!"
And this is what you hear from the voice actor:
"...stant land to kill dragons and find a treasure!"
This happenes randomly in all builds from 1.00 to 3.01 so I have no idea if putting the output log and savagames will do the trick. I think some of you experienced this as well. It is not gamebreaking, but annoying as hell.