News From the Field
Caltech Engineers Develop One-way Transmission System for Sound Waves

July 26, 2011

While many hotel rooms, recording studios and even some homes are built with materials to help absorb or reflect sound, mechanisms to truly control the direction of sound waves are still in their infancy. However, researchers at the California Institute of Technology have now created the first tunable acoustic diode--a device that allows acoustic information to travel only in one direction, at controllable frequencies. Full Story

Source
California Institute of Technology

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