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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
London - Low Zero Carbon Reports - 020 3390 0301
The counties covered by this office are:
London, Middlesex, Surrey, East Sussex, Berkshire, Hertfordshire, Kent, , Essex, Oxfordshire,
Phone Number: 020 3390 0301 Email: london@e2consultants.co.uk
Our other services include:
Low Zero Carbon Reports can also be known as:
Energy Statements, Low Zero Carbon Report, LZC Report,


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Company No. 06728970