Scientists at ETH Zurich and the Swiss Federal Institute of Technology Lausanne have developed a device that directs sound waves in one direction without wasting energy. This breakthrough sound wave ...
7monon MSN
A wild new sound tech promises to create 'personal' sound only you can hear, but without headphones
Twin ultrasound transducers create highly focused audio Curved sound waves aren't audible if you're not in the sweet spot ...
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