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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

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
Derbyshire - Commercial Sustainability Statement - 0114 368 0192
The office that covers this area is: Sheffield
The towns & cities that are covered within this county are:
Alfreton, Ashbourne, Bakewell, Belper, Bolsover, Buxton, Chapel en le Frith, Chesterfield, Clay Cross, Creswell, Derby, Dronfield, Glossop, Hadfield, Heanor, High Peak, Holloway, Hope Valley, Ilkeston, Langley Mill, Long Eaton, Matlock, Melbourne, New Mills, Ripley, Somercotes, Swadlincote, Whaley Bridge, Wirksworth,
Phone Number: 0114 368 0192 Email: derbyshire@e2consultants.co.uk
Our other services include:
Commercial Sustainability Statement can also be known as:
Sustainability Statement, Commercial Sustainability Statements,


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Company No. 06728970