Technically, the existing voice packs were made with AI. But you're right, they kinda suck and the technology's come a long way in the past two years. These could probably be redone much better (and easier) now. I just don't have the bandwidth to do everything, and hundreds of audio lines can be tedious work especially compared to rendering sexy naked ladies, so it hasn't quite risen to the top of my list yet. If only there were a bunch of enthusiastic fans around that had time to help... ;)