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Sound Insulation
Two parameters describe sound insulation; Dw and Rw. Dw is the insulation between rooms. Rw is the lab-tested insulation of a wall/floor...more

Good Hearing?
A typical person with good hearing can hear from about 20Hz to 20kHz (the audio bandwidth). A person's voice will usually range from 500Hz to 2kHz...more
Part E
Resistance of the Passage of Sound

Our other services include:
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Domestic Sustainability Statement can also be known as:
Sustainability Statements,
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In County I
Sustainability Statement in Inverness-shire, Sustainability Statement in Isle of Anglesey, Sustainability Statement in Isle of Man, Sustainability Statement in Isle of Wight,