. . . . . . "w/m2" . . . "Sound intensity"@en . . . . "http://en.wikipedia.org/wiki/Sound_intensity"^^ . . . "I" . . . . . . "belongs to SOQ-ISO" . "Sound intensity or acoustic intensity (\\(I\\)) is defined as the sound power \\(P_a\\) per unit area \\(A\\). The usual context is the noise measurement of sound intensity in the air at a listener's location as a sound energy quantity." . "\\(I = pv\\), where \\(p\\) is the sound pressure and \\(v\\) is sound particle velocity."^^ . .