A new technique sends sound to a specific person without the surrounding people hearing it
The researchers believe that these ‘whispering beams’ could be used to transmit personalized messages in public spaces, such as museums, or for military purposes
The institution itself acknowledges that “it sounds like science fiction.” A team of scientists from Pennsylvania State University has created a technique for sending sounds remotely to a specific person, without anyone hearing it along the way. In the experiment announced on March 17, the researchers fired two independent beams of inaudible ultrasound, each surrounding the recipient’s head on one side. When they cross in front of the face, they interact, producing the sound of the famous chorus from Handel’s Messiah: “Hallelujah! Hallelujah!” The scientists call these remote sound bubbles “audible enclaves” or “whispering beams.”
