Offices Nationwide
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
Sound Absorption
The loss of sound energy when sound waves come into contact with an absorbent material such as ceilings, walls, floors and other objects...more
Offering practical advice on how to achieve a reasonable level of air tightness in dwellings.
Copyright 2026 E2 Specialist Consultants Limited
Company No. 06728970
In Area P
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