Empirical Calculation of the Noise Level in a Room-Heerema
Building Size Length
m Width
m Height
m
Number of Fittings
Fitting Height
m Surface Covered
%
Hard Surface Area
m
2
Panelled Area
m
2
Treated Area
m
2
125 250 500 1000 2000 4000 Hz
Treated Absorption
Sound Power Level (usually Sound Pressure Level at 1m + 8 dB)
X Y Z 125 250 500 1000 2000 4000 Hz
Source 1
dB
Receiver 1
dB
Receiver 2
dB
Receiver 3
dB
Receiver 4
dB
Receiver 5
dB
Receiver 6
dB
Receiver 7
dB
Receiver 8
dB
Receiver 9
dB