Direct conversion applied

How to convert sound pressure to decibel

Converting sound pressure to decibel is done through a simple mathematical relationship. This is because 1 sound pressure corresponds to exactly 1 dB.

To perform this calculation, use the following formula:

dB=SPL (mesmaescalalogar��tmica)mathrm{dB} = mathrm{SPL} text{ (mesma escala logarítmica)}

Quick guide:

  1. Define the amount in SPL you want to convert.
  2. Enter that number into the formula.
  3. Start by equivalent using the 1 value.

The number obtained will be your exact measurement in Decibels (dB).

Example:

To get the value in dB from 120 SPL, we apply the 1 conversion factor as follows: 120 = 1 = 120. With this, we conclude that 120 SPL results in 120 dB.

120 SPL=120 dB120 text{ SPL} = 120 text{ dB}

Continue converting!