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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

How loud is too loud?
Noise above 85 dBA over time will cause hearing loss. In general, the louder the noise, the less time required before hearing loss...more
Part E
Resistance of the Passage of Sound

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Code for Sustainable Homes can also be known as:
C4SH, Code Assessment, Code for Sustainable Homes Daylight Calculation, CSH, Sustainable Homes,
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Company No. 06728970
In County N
C4SH - Code For Sustainable Homes in Norfolk, C4SH - Code For Sustainable Homes in North Yorkshire, C4SH - Code For Sustainable Homes in Northamptonshire, C4SH - Code For Sustainable Homes in Northumberland, C4SH - Code For Sustainable Homes in Nottinghamshire,