Stephen Hawking speeds up thanks to high-tech speech aid

Stephen Hawking is to take a quantum leap forward in the world of communication thanks to new technology that will allow him to write faster.

For the past decade, he has composed sentences one letter and word at a time, by using a twitch of his cheek muscle to stop a cursor moving across text on a screen. His sentences are then read out by a computerised speech device, producing his distinctive robotic voice.

http://www.thetimes.co.uk/tto/technology/article3664239.ece