WASHINGTON—People robbed of the ability to talk due to a stroke or another medical condition may soon have real hope of regaining a voice thanks to technology that harnesses brain activity to produce synthesized speech, researchers said on April 24.
Scientists at the University of California, San Francisco, implanted electrodes into the brains of volunteers and decoded signals in cerebral speech centers to guide a computer-simulated version of their vocal tract—lips, jaw, tongue, and larynx—to generate speech through a synthesizer.
