14.2 Sound Intensity Level

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Sound Intensity Level

SOUND INTENSITY LEVEL
Sound Intensity Level
(Decibel Level)
β = 10 log I/I0          I = Intensity          I0 = 10-12 W/m2
Intensity of Spherical
Waves
I = P / 4πr2          I1 / I2 = r2 2 / r1 2