7/23/2019 Noise Level Calculator

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Noise Level Calculation

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Units of Measure : Metric

Sound Level at 30-m from the oint of discharge! L : 98.0 db

"e#uired distance for Sound Level calculation! r : 1.0 meters

 

Ne$ Sound Level at "e#uired %istance! Lr : &'()( db

E"uation from #rosb$ Engineering %andboo&'

(here) ) decibels *db+

r) decibels *db+

r) feet

 Lr= L−20⋅ LOG

10(   r100 )