Sound pressure level (SPL) calculator - formula & step by step calculation to measure the logarithmic RMS value of the sound or acoustic pressure caused by the sound wave relative to a reference value in decibels. SPL (dB) = 10 log10(p2/po2). Sound pressure p in Pa & reference sound pressure level po in Pa are the key elements of this calculation. It's useful tool to find out the audible sound or noise pollution.
Formula
In environmental engineering, the below formula is used to calculate the sound wave's acoustic pressure level. The step by step calculation for each set of inputs let users to understand how to perform such noise wave pressure calculations manually.
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