What I do is play the final soundtrack wav file into my earphones, while dictating/creating a new wav of the one character using my own voice. Now you have a new wav, with the same timing only separated. Dictate the other character into it's own wav. Then create separate Mimic pz2 files. I also do this if a track has alot of music or noise. I just use the built in Windows wav recorder. This makes a separate, clean wav for individual MiMIC files.