The artificial intelligence system restores speech to patients with a special sound
California researchers have made a major penetration with an artificial intelligence -powered system that restores the natural speech of paralyzed individuals in real time, using their own sounds, specifically in a participant in the clinical experience with severe paralysis and cannot speak.
This innovative technology, developed by teams at the University of California in Berkeley and UC San Francisco, combines the BCI brain interfaces with advanced artificial intelligence to dismantle nervous activity in an audible speech.
Compared to other recent attempts to create a letter from the brain signals, this new system represents great progress.
Artificial Intelligence System (Kaylo Littlejohn, Cheol Jun Cho, et al. Nature Neuroscience 2025)
How to work
The system uses devices like high -density electrodes that record nervous activity directly from the surface of the brain. It also works with micro -electrodes that penetrate the electric surface sensors of the brain and non -invasive on the face to measure muscle activity. These devices take advantage of the brain to measure nervous activity, which is then learned by artificial intelligence, shifting to the sound of the patient’s voice.
Neurological cells designate nerve data from the kinetic cortex in the brain, the area that controls the production of speech, and the disintegration of artificial intelligence that data in speech. According to the study of the co -author Cheol Jun Cho, neurons object to signals where the thought is translated into expression, and in the middle of that, the engine control.

Artificial Intelligence System (Kaylo Littlejohn, Cheol Jun Cho, et al. Nature Neuroscience 2025)
Amnesty International enables the paralyzed man to control the automatic arm with brain signals
Main developments
- Speaking in real time: The artificial intelligence -based model flows a clear speech from the brain in a near -real time, and deals with the challenge of cumin in nervous speech. This “flow approach brings the same ability to decode fast speech to devices such as Alexa and Siri to nerve cells,” according to Jobala Anumsheibi, co -investigator From the study. The model dismantles nerve data with 80 milliliters, allowing use without interruption from the unit of coding, which increases the speed of speed.
- Natural speech: This technology aims to restore natural speech, allowing the most heroic and expression communication.
- Personal voice: Artificial intelligence is trained using the patient’s voice before being injured, generating a sound that resembles them. In cases where patients have no remaining ambiguity, researchers use a model of text to pre -trained speech and the patient’s voice before infection to fill the missing details.
- Speed and accuracy: The system can start deciphering the brain signals and removing speech within a second of the patient who is trying to speak, a significant improvement in eight seconds delay in a previous study of 2023.
What is artificial intelligence (AI)?

Artificial Intelligence System (Kaylo Littlejohn, Cheol Jun Cho, et al. Nature Neuroscience 2025)
The outer structure helps the paralyzed people restore independence
Overcoming challenges
One of the main challenges was to set nervous data to take out speech when the patient had no remaining audio. The researchers overcame this by using a text form to the words of the trained in advance and the patient’s voice before infection to fill the lost details.
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Artificial Intelligence System (Kaylo Littlejohn, Cheol Jun Cho, et al. Nature Neuroscience 2025)
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Impact and future trends
This technology has the ability to significantly improve the quality of life for people with paralysis and conditions like als. It allows them to connect their needs, express complex ideas and communicate with their loved ones naturally.
“It is interesting that the latest progress of artificial intelligence is highly accelerating BCIS for practical use in the nearby world,” said UCSF.
The following steps include accelerating the treatment of artificial intelligence, making the output sound more expressive and exploring to integrate the differences of the tone and stadium and the height of the made speech. Researchers also aim to decipher linguistic features of brain activity to reflect changes in the tone, stadium and height.
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The really amazing thing about this artificial intelligence is that not only translates the brain signals into any kind of speech. It aims to naturally talk, using the patient’s voice. It is like returning them their voice, and it is a changing toys. It gives a new hope for effective communication and renewed communications to many individuals.
What role do you think that government agencies and organizational bodies should play in overseeing the development and use of computer facades in the brain? Let’s know through our writing in Cyberguy.com/contact.
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