Noise Pollution Level-Compute

The noise pollution level calculator can accurately calculate the current noise average decibel intensity.
The noise pollution level (LNP) is the amount of noise that is given by the combined effects of the energy average and the variation characteristics (indicated by the standard deviation).
It has been proved by experiments that adding an amount indicating the magnitude of noise variation to the equivalent continuous sound level can better reflect the actual pollution level. It is more appropriate to use this noise pollution level to evaluate the traffic noise of aviation or roads.