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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

Reverberation Time
The reverberation time of a room is defined as the time it takes for sound to decay by 60 dB after an abrupt termination...more
Cardiff - Display Energy Certificates - 029 2193 0147
The counties covered by this office are:
Gwent, Pembrokeshire, Carmarthenshire, Glamorgan, Avon, Swansea County, Gloucestershire, Dyfed, Powys,
Phone Number: 029 2193 0147 Email: cardiff@e2consultants.co.uk
Our other services include:
Display Energy Certificates can also be known as:
Display Energy Certificate, DEC,


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