Engineers and scientists at Duke University have developed an “acoustic cloaking deivce” using “metamaterials”. The device passively disrupts sound waves in such a way that the device itself, and anything within it, can not be detected acousticly. The result is that the sound waves behave as if they are reflected from a flat surface. Professor of Electrical and Computer Engineering, Steven Cummer, is the leader of this design project.
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World’s first 3D acoustic cloaking device created.
The discussion on ductwork noise transmission from Acoustic Fields highlights crucial aspects of HVAC system acoustics. The movement of air…
Great build plans. thank you Denis
You must use absorption. Never place a chair against a wall.
A friend and I built several diffusors using these plans and they turned out absolutely beautiful. Very good instructions and…