I don’t know why this didn’t occur to me earlier, but I wanted to mention this in case some of you don’t visit the forums.
krfsm on the mirror moon forums has announced the creation of a patch which allows the importing of voices from the PS2 version.
While I haven’t had a chance to enjoy the patch yet (my game probably arrives next week), I can imagine it must be great!
Much thanks to krfsm for his contribution to the fan community!
Read the details here.