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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

Point of Reference
10 dBA is the sound level of normal human breathing. To put it into perspective, thunder is a whopping 120 dBA...more
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Welwyn - PPG24 - 020 3390 0301
The office that covers this area is: London
Phone Number: 020 3390 0301 Email: welwyn@e2consultants.co.uk
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For further PPG24 information for your area, be sure to check out Sound-Testing-London.co.uk.
Our other services include:
PPG24 can also be known as:
Sound Testing Environmental Noise, Commercial Environmental Noise Assessment, Noise Impact Assessment, Commercial Noise Survey For Residential Development, Commercial Noise Impact Assessment, Commercial PPG24, Commercial BS4142, Commercial Sound Testing Environmental Noise, Commercial BS8233 Noise Assessment and Noise Survey, Industrial Noise Survey, BS4142, Commercial Building and Room Acoustics, Building and Room Acoustics, Commercial Industrial Noise Survey, BS8233 Noise Assessment and Noise Survey, Environmental Noise Assessment, Noise Survey For Residential Development,


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