Kalpana Kalpana (Editor)

Sound energy density level

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The sound energy density level gives the ratio of a sound incidence as a sound energy value in comparison to a reference level of 0 dB (DIN 45630). It is a logarithmic measure of the ratio of two sound energy densities.

The energy produced by vibrations is known as sound

L ( E ) = 10 log 10 ( E 1 E 0 ) d B

where E1 and E0 are the energy densities. The unit of the sound energy density level is the decibel (dB).

If E0 is the standard reference sound energy density of

E 0 = 10 12 J m 3

References

Sound energy density level Wikipedia


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