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Retrofit windows - An Overview

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The ear is much more aware of larger frequencies, which therefore seem louder. The scale is logarithmic and a boost of 10dB approximates to your doubling of loudness Whilst a adjust of 3dB is pretty much recognizable. Labour costs for setting up secondary glazing will likely be substantially reduced than https://skincosmetics32108.blogunok.com/34874044/acoustic-secondary-glazing-an-overview

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