Ultrasound lets users whisper across distance

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A new technology is being developed by the University of Bristol that could revolutionize communications, particularly for Special Forces troops and Secret Service agents. The full name of the concept is “Project Telepathy: Targeted Verbal Communication Using 3D Beamforming Speakers and Facial Electromyography” and it's been led by engineer Asier Marzo. Users need to wear a speaker on their head or chest and attach four electrodes around their lips and jaw. The electrodes then read the facial movements as the user speaks, and the speaker fires a narrow ultrasonic beam, projected at a six-degree angle, that only anyone in its path can…

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