Bass, Henry E. Physical Acoustics Research Laboratory, University of Mississippi, Oxford, Mississippi.
Campanella, Angelo J. Campanella Associates, Columbus, Ohio.
Chambers, James P. University of Mississippi, Oxford, Mississippi.
Lindsay, R. Bruce Formerly, Brown University, Providence, Rhode Island.
Last reviewed:January 2020
- Classical sources
- Measurement of absorption in fluids
- Molecular relaxation in gases
- Relaxation processes in liquids
- In the atmosphere
- In seawater
- In solids
- At boundaries
- Related Primary Literature
- Additional Reading
The process by which the intensity of sound is diminished by the conversion of the energy of the sound wave into heat. The absorption of sound is an important case of sound attenuation. This article will address absorption mechanisms in varying media but will concentrate on absorption in ideal gases (such as air), since these effects are the most commonly observed.
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