Enter information in green cells.  Sound level at receiver based on input conditions shown in red cell.  Click here to read document describing the theory used in these calculations.

 

Base Sound Level at Specified Feet From Boat

dBA

feet

Sound Level Attenuation

Distance To Receiver

feet

Distance Attenuation

dBA

# of Feet of Dense Foliage

feet

Foliage Attenuation

dBA

# of Feet of Groundcover (such as grass)

feet

Groundcover Attenuation

dBA

Temperature

degrees F

 

 

Relative Humidity

%

Air Attenuation

dBA

Distance of Boat from Shore

feet

 

 

Water Level Below Ground Level

feet

Water Level Attenuation

dBA

Sound level at Receiver

dBA