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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

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

East Dereham - Commercial Energy Audits - 01733 600 149
The office that covers this area is: Peterborough
Phone Number: 01733 600 149 Email: east-dereham@e2consultants.co.uk
Our other services include:
Commercial Energy Audits can also be known as:
Building Thermal Imaging Survey, Thermography, Commercial Thermal Imaging Survey, Commercial Thermal, Heat Loss Survey, Commercial Code Air Infiltration Survey, Commercial Thermal Imaging, Commercial Thermography Survey, Commercial Energy Audit, Commercial Thermography, Thermal, Commercial Building Thermal Imaging Survey, Code Air Infiltration Survey, Energy Audit, Commercial Heat Loss Survey, Thermal Imaging Survey, Thermography Survey, Thermal Imaging, Commercial Thermal Imaging Inspection,


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