Question

Determine the linear Sound Pressure Level (in dB re 20 μPa) when the ambient pressure is 101.35 kPa and the r.m.s. of the pressure fluctuations is p_rms.

Answer 1

The SPL in decibels equals 194.09 dB.

The R.M.S of the pressure fluctuations is 101.35 kPa

Step-by-step explanation:

The Sound Pressure level is calculated by the formula

`SPL(dB)=20log((p)/(p_(o)))`

where

`p` = the sound pressure level

`p_(0)=20* 10^(-6)Pa` = reference pressure level

Applying the given values in the formula we get

`SPL(dB)=20log((101.35* 10^(3))/(20* 10^(-6)))\\\\SPL(dB)=194.09dB`

The R.M.S of the pressure fluctuations is 101.35 kPa