Contemporary hand held devices are moving from a two to a three dimensional shape challenging speaker and screen makers to adapt. FujiFilm has made a quantum step forward in this field with its unparalled ultra-thin Electroacoustic Film. In this new design the elasticity of the film depends on its frequency preventing sound distortion. The new generation of speakers using this film will outperform the current ones using paper cones.
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Electro acoustic film that is paper thin. WOW !
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I’m seeking info for sanctuary reverberation absorbsion material ( panels) and best placement.
There may be apps that do that. You can definitely find spectrum analyzers that will measure ultra low.
Is there an APP that can measure the ultra low frequency levels?