Neuroscientists are racing to turn brain waves into speech

Breakthroughs in neurotechnology are bringing voice back to those who cannot speak, as researchers work to translate brainwaves into naturalistic speech using implants and AI. Pioneering efforts by teams at UC San Francisco, UC Berkeley, and companies like Precision Neuroscience are making strides in turning thought patterns into spoken words. A recent study achieved a one-second delay between brain signals and speech output—closer to normal conversation—and produced speech at 47.5 words per minute, a major leap toward restoring communication for the severely disabled.