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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

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

Wrexham County - C4SH - 01978 633 079
The office that covers this area is: Wrexham
The towns & cities that are covered within this county are:
Chirk, Llay, Wrexham,
Phone Number: 01978 633 079 Email: wrexham-county@e2consultants.co.uk
Our other services include:
C4SH can also be known as:
Sustainable Homes, Code for Sustainable Homes, CSH, Code for Sustainable Homes Daylight Calculation, Code Assessment,


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