India, Jan. 20 -- London (PAMedia/dpa) - Stroke patients have been given their voice back thanks to a new washable device worn around the neck. University of Cambridge experts have created Revoice, a technology which could cut out the need for invasive brain implants and enables patients to communicate naturally. Revoice combines sensors and artificial intelligence to decode speech signals and emotional cues in patients to deliver words and complete sentences. The team behind it hope it could also be used by people with other conditions, such as Parkinson's and motor neurone disease (MND). Revoice is worn as a soft and flexible choker around the neck, picking up the patient's heart rate and tiny vibrations from throat muscles. These signals...