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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

Sound Intensity
Sound intensity's measured in Decibels (dB). An logarithmic scale where an increase of 10 dB gives an apparent doubling of loudness...more
Part L2A
Conservation of fuel and power in new builds other than dwellings

St. George - DEC - 029 2193 0147
The office that covers this area is: Cardiff
Phone Number: 029 2193 0147 Email: st-george-@e2consultants.co.uk
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DEC can also be known as:
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