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Envirotech Anechoic Chamber is an Enclosed Room With Surfaces And Materials that Have Been Specially Designed to Absorb And Reflect Sound Waves. this Sound Absorption And Reflection are Used in Various Fields of Research, Including Acoustics, Medicine, Psychology, And the Military. the Quietest Place on Earth, Envirotech Anechoic Chamber at Orefield Laboratories in Minnesota, is So Quiet that the Longest Anybody Has Been Able to Bear it is 45 Minutes. Inside the Room It's Silent. So Silent that the Background Noise Measured is Actually Negative Decibels, -9.4 Dba” Anechoic Chamber is the Reco.
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