Voice level at various distance
- a normal voice approximates to sound pressure level 70 dB
- a raised voice approximates to sound pressure level 76 dB
- a very loud voice approximates to sound pressure level 82 dB
- a shouting voice approximates to sound pressure level 88 dB
at 1 ft distance.
|Distance||Voice Level (dB)|
In a social situation people often talk with normal voice levels at distances 1 to 4 meters. In such cases background noise levels should not exceed 55 to 60 dB(A).
In outdoor play and recreational areas people often communicate with raised or very loud voices at distances 5 to 10 meters and background noise should not exceed 45 to 55 dB(A).