Brain interface restores real-time speech for man with ALS
- On June 11, 2025, a team from UC Davis unveiled a novel brain-computer interface that enabled a man with ALS to communicate through a computer by translating his brain signals into synthesized speech in real time.
- The man underwent surgery five years after symptoms began to implant four microelectrode arrays into the brain region responsible for speech production for this BrainGate2 clinical trial.
- The system decoded the participant's neural activity as he tried to speak, translating signals into audible synthesized speech played within one-fortieth of a second.
- Senior author Sergey Stavisky said this new synthesis is "more like a voice call," and the participant’s voice conveyed tone, pitch, and emphasis to express meaning.
- Although promising, the study involved one participant, so expanding trials to more users is crucial to confirm effectiveness and usability for speech restoration.
24 Articles
24 Articles
Brain-computer interface restores real-time speech in als patient
A team at UC Davis has made a major leap in neurotechnology, enabling a man with ALS to speak again through a brain-computer interface that converts thoughts into speech in real time. Unlike prior systems that translated neural signals into text, this one synthesizes actual voice with tone, pacing, and even melody, creating a near-conversational experience. The device interprets neural signals via implants and advanced AI, making it possible for…
This brain interface, coupled with artificial intelligence models, opens the door to more dignified and full communication for those who have lost their voices.
Online speech synthesis using a chronically implanted brain–computer interface in an individual with ALS
Brain–computer interfaces (BCIs) that reconstruct and synthesize speech using brain activity recorded with intracranial electrodes may pave the way toward novel communication interfaces for people who have lost their ability to speak, or who are at high risk of losing this ability, due to neurological disorders. Here, we report online synthesis of intelligible words using a chronically implanted brain-computer interface (BCI) in a man with impai…
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