Ben Posted September 3, 2014 Report Share Posted September 3, 2014 http://www.neomatica.com/2014/08/27/designed-metasurface-thin-near-perfect-acoustic-absorber/ Maybe some of y'all saw this one already. But some scientists at Hong Kong University have created a type of sound absorption technology that relies on a metasurface suspended over a pocket of gas and a small weighted platelet that can be tuned to dampen a particular frequency nearly 100%. It also generates a small amount of energy. The down side is each membrane can only be tuned to absorb one frequency. But there is interesting potential Tl;dr Smart people have made super sound blankets Quote Link to comment Share on other sites More sharing options...
Jay Rose Posted September 4, 2014 Report Share Posted September 4, 2014 It also apparently works on harmonics. So how would it be for killing the buzz from lamp ballasts? Quote Link to comment Share on other sites More sharing options...
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