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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

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 L2B
Conservation of fuel and power

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For further Commercial_BS4142 information for your area, be sure to check out Sound-Testing-.co.uk.
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Commercial BS4142 can also be known as:
BS4142, Commercial Industrial Noise Survey, Environmental Noise Assessment, Commercial Noise Survey For Residential Development, Industrial Noise Survey, Commercial BS8233 Noise Assessment and Noise Survey, Building and Room Acoustics, Sound Testing Environmental Noise, BS8233 Noise Assessment and Noise Survey, Commercial Environmental Noise Assessment, Noise Survey For Residential Development, Commercial Noise Impact Assessment, Commercial Sound Testing Environmental Noise, Noise Impact Assessment, Commercial Building and Room Acoustics, PPG24, Commercial PPG24,
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Company No. 06728970
In County G
Enviromental & Road Traffic Noise in Glamorgan, Enviromental & Road Traffic Noise in Gloucestershire, Enviromental & Road Traffic Noise in Grampian, Enviromental & Road Traffic Noise in Greater Manchester, Enviromental & Road Traffic Noise in Gwent, Enviromental & Road Traffic Noise in Gwynedd County,