um.. as far as i know audio hijack pro doesn't do this... it's solely meant as a recording application. you will need an audio editing application... maybe Audacity? i imagine you could using an audiounit (if they provide one or you can find one) then play the audio through itunes, tell AHP to capture from itunes and then slow it down that way... but your best bet is to just use an audio editing app like audacity and slow it down that way... AHP won't do this easily, and you'd just be rerecording the audio again to get it to slow down.. not worth it