Sound Propagation Outdoors
In this chapter, the reader is introduced to the analysis of outdoor sound propagation, including:
various phenomena affecting the sound pressure level arriving at the receiver, such as:
o spherical divergence;
o atmospheric absorption;
o ground reflection;
o atmospheric wind and temperature gradients and turbulence;
o source height;
o absorption by foliage;
o shielding by barriers, houses and process equipment/industrial buildings;
commonly used methods of prediction, including the CONCAWE and ISO 9613-2 (1996) propagation models; and
Sound propagation outdoors is a complex process, with the sound pressure level produced at a receiver by a source, at a ...
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