<ul><li>Scientists at Penn State have developed 'audible enclaves' which allow private listening without headphones.</li><li>The technology uses ultrasonic beams that create a private listening zone at the intersection point.</li><li>These 'audible enclaves' work by utilizing an acoustic metasurface and sound bending lenses.</li><li>The system can project sound up to a meter away and at a volume similar to regular speaking.</li></ul>

Scientists create ‘audible enclaves’ for private listening without headphones

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