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Sound Levels
Decibels (dB) are most commonly used as a measure of sound level, but they are also used in electronics, signals and communications...more

The Decibel Scale
Gives an approx of human perception of loudness. This is because the human ear has a logarithmic response to changes in sound level...more
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CSH can also be known as:
Code for Sustainable Homes Daylight Calculation, Code for Sustainable Homes, C4SH, Code Assessment, Sustainable Homes,
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