Film critic Roger Ebert (At The Movies, Siskel & Ebert) lost most of his throat structures due to thyroid cancer a few years ago, which is why he hasn't been in the public eye. He was on Oprah talking about it and also previewed his new synthetic voice. The below video (on Oprah's site) is the first time his wife Charlie (aka: "Chaz") has heard it.
Popular Science story....
Popular Science story....