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    lang:en
    Sound power level
    lang:""
    Sound Power Level abbreviated as \(SWL\) expresses sound power more practically as a relation to the threshold of hearing - 10-12 W - in a logarithmic scale.
    lang:""
    http://en.wikipedia.org/wiki/Sound_power#Sound_power_level
    lang:""
    \(L_W = 10 \log_{10} \frac{P}{P_0} dB\), where \(P\) is sound power and the reference value is \(P_0 =1pW\).
    lang:""
    belongs to SOQ-ISO