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- Sound intensity
Instantaneous product of sound pressure and particle velocity
Sound intensity, also known as acoustic intensity, is defined as the power carried by sound waves per unit area in a direction perpendicular to that area. The SI unit of intensity, which includes sound intensity, is the watt per square meter (W/m 2 ). One application is the noise measurement of sound intensity in the air at a listener's location as a sound energy quantity. Sound intensity is not t... Wikipedia
