from what I understand Poserspeak is purely keyed off of typed text and creates an electronic voice track from that, and does not actually key off of a natural recorded voice track wwheras Mimic actually anylizes a natural voice track and creates the keys off of that. the text track is only there for added accuracy. I'm not aware if poserspeak actually offers you a timeline to fine tune your lipSync. Mimic does have an advanced timeline to do so.