“…speech is produced using the cerebral cortex of the brain, meaning with the right electrodes and system in place we should be able to reconstruct speech just from brain waves.
This is what a team from Cognitive Systems Lab at KIT and the Wadsworth Center in New York has managed to do. Using 7 epileptic patients who volunteered for the study, they each had an electrode array attached to the surface of their cerebral cortex in order to monitor brain waves related to speech. A combination of this information combined with machine learning and linguistic knowledge allowed a system to be created that can reconstruct what is being spoken.
The video below shows the speech decoding system in action.” read full article