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::Sound pressure

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Sound pressure or acoustic pressure is the local pressure deviation from the ambient (average, or equilibrium) atmospheric pressure, caused by a sound wave. In air, sound pressure can be measured using a microphone, and in water with a hydrophone. The SI unit of sound pressure is the pascal (Pa).<ref name=“engineering toolbox">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>


Sound pressure sections
Intro  Mathematical definition  Sound measurements  Inverse-proportional law  Sound pressure level  Examples of sound pressure  See also  References  External links  

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