As stated already, it would take veeeeeeeeeeeeeeery much work to do such a thing - and there is a simple reason for why they did it in Mass Effect, but not in Dragon Age. In Mass Effect you have 2 voices - Male or Female In Dragon Age you have human, dwarf, elf - male/female, so its so much much more work to do voices for that. I seriously doubt any modder could do this ( with good result ) unless a whole team gets together and records in a studio.