When using Speak the voice of the system settings has to be used.We receive many enquiries on how to download the Text-to-Speech voices from our site… I have to say the experience can be a little bit of a treasure hunt.Designed to empower high‑quality self‑service applications, Nuance TTS creates natural sounding speech in 53 languages and 119 voice options. Nuance TTS establishes a unique voice for your brand and maintains consistent caller experience across your IVR and mobile channels.The funny part is, on my wife's iMac, we laughed and bemoaned the nocturnal annoucements, but never did anything about it until the logic board released it's last store of magic smoke and finally died. Or just leaving the voice prompts on and getting 'Excuse me, iTunes needs your attention' in the middle of the night.10.2 news: Speaking of speaking: Several of 10.2's many new features for the disabled are useful for almost anybody including the system's ability to read. These are terrific timesavers for efficiency freaks. You can operate every menu in every program entirely from the keyboard or new in 10.2 even by voice.