You might find the first answer interesting here: http://dsp.stackexchange.com/questions/7833/how-to-mimic-copy-fake-someones-voice http://dsp.stackexchange.com

You might find the first answer interesting here: http://dsp.stackexchange.com/questions/7833/how-to-mimic-copy-fake-someones-voice http://dsp.stackexchange.com/questions/7833/how-to-mimic-cop... Looks like there's some interesting research on Voice Conversion out there, but I'm not knowledgeable enough to comment on how close we are to seeing it as an actual product. This pdf (from 10 years ago) seems interesting, though. Hmmm: http://nlp.lsi.upc.edu/papers/thesis_helenca.pdf http://nlp.lsi.upc.edu/papers/thesis_helenca.pdf