TM 5-805-4/AFJMAN 32-1090
Table 3-6. Summary of Data and Calculations Illustrating Use of Equation 3-2.
Col. 2
Col. 4
Col. 3
Col. 1
Col. 5
Octave
REL SPL
PWL
Band
of
Room
from
SPL at
Center
Source
Constant
Fig. 5-1
Distance
(ft.2)
(dB)
(Hz)
(dB)
(dB)
-10
400
31
95
85
-12
600
81
63
93
800
-13
81
125
94
1200
80
-15
250
95
-16
1600
83
500
99
2000
1000
102
-17
85
2000
108
2000
-17
91
2000
88
-17
4000
105
2000
-17
8000
77
94
3-9
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