Sound absorption coefficient
Approved document E: Resistance to the passage of sound, defines the ‘absorption coefficient’ as:
A quantity characterising the effectiveness of a sound absorbing surface. The proportion of sound energy absorbed is given as a number between zero (for a fully reflective surface) and one (for a fully absorptive surface). Note that sound absorption coefficients determined from laboratory measurements may have values slightly larger than one.
See BS EN 20354:1993 (Acoustics. Measurement of sound absorption in a reverberation room).
[edit] Related articles on Designing Buildings Wiki
- Airborne sound.
- Approved Document E.
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- Building Bulletin 93: acoustic design of schools.
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- Impact sound.
- Noise nuisance.
- Reverberation.
- Robust details certification scheme.
- Sound absorption.
- Sound insulation in buildings.
- Sound reduction index (SRI).
- Sound v noise.
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