For relatively highly damped material such as cork, rubber or neoprene, the material’s dynamic stiffness is significantly greater than its static stiffness. This reduces the effective deflection possibly by around 30% to 40%, with a corresponding reduction in the level of vibration isolation that is achieved in practice.
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The Trees / Hedge will Stop the Noise
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Put a Hole in the Wall to Let the Noise Out
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Lining a Room Won't Make it Acoustic
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An Acoustic Barrier Forces Sound to Bend Around it
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