Vocal Joystick — better than speech recognition?
University of Washington researchers have developed a technique that uses different vocal sounds to move a cursor on a screen in different directions. The longer and louder the sound, the further and faster the movement. This analog input system may be more efficient than discrete recognition of words for the same navigational purpose; very innovative!
Vocal Joystick for accessibility - Boing Boing
Update: here’s a video.