The American Telephone and Telegraph Company -- better known as AT&T -- has a natural affinity to voice-transmissions. It comes to no surprise that a company with telephony-roots would encourage and sponsor the developement of a high-quality, artificial voice system.

Still, listening to the Natural Voices demos is quite amazing anyway. Except for minor glitches, Natural Voices intoniation is first class. What's even more amazing: I like the german speech better than the english one. It sounds even more natural to me.