Half-integer: Difference between revisions

Latest revision as of 03:40, 11 November 2014

Name: Wilhelmina Throssell
Age: 20
Country: Australia
City: Raukkan
ZIP: 5259
Street: 19 Hereford Avenue

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-{{multiple issues|
+Name: Wilhelmina Throssell<br>Age: 20<br>Country: Australia<br>City: Raukkan <br>ZIP: 5259<br>Street: 19 Hereford Avenue<br><br>Also visit my page [http://Gdgmanch.com/?q=users/emil-wylie Fifa 15 Coin Generator]
-{{Notability|date=October 2008}}
-{{Refimprove|date=October 2008}}
-}}
-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]].
-== Definition ==
-The sound energy density level ''L''<sub>E</sub> is:
-:<math>
-L(E)=10\, \log_{10}\left(\frac{E_1}{E_0}\right){\rm dB}
-</math>
-where ''E''<sub>1</sub> and ''E''<sub>0</sub> are the energy densities. The unit of the sound energy density level is the [[decibel]] (dB).
-If ''E''<sub>0</sub> is the standard reference [[sound energy density]] of<ref name="DIN1320">DIN 1320: Acoustics, Version 1997-06, Beuth publishing</ref>
-:<math>
-E_0 = 10^{-12} \mathrm{\frac{J}{m^3}}
-</math>
-==References==
-<references/>
-[[Category:Sound]]
-[[de:Schallenergiedichtepegel]]