LxT Manual
LxT2
B
-
15
Section 9.3
a) Reference Sound Pressure Level
The reference sound pressure level is 114 dB re 20 µPa.
b) Reference Level Range
The reference level range is normal.
c) Microphone Reference Point
The microphone reference point is the center of the diaphragm of the 7052 microphone.
d) Periodic Testing
See table 2 for values of Larson Davis LxT2 with PRMLxT2 and 7052 Microphone adjustment data of
A-weighted levels used for periodic measurements.
11220.18
-0.8
0.8
-0.1
-0.9
0.9
0.8
11885.02
-0.8
0.8
-0.3
-1.1
1.1
0.9
12589.25
-0.8
0.8
-0.2
-1.0
1.0
1.0
13335.21
-0.9
0.9
-0.3
-1.2
1.2
1.0
14125.38
-1.1
1.1
-0.3
-1.4
1.4
1.0
14962.36
-0.7
0.7
-0.3
-1.0
1.0
1.0
15848.93
-0.7
0.7
-0.4
-1.1
1.1
1.0
16788.04
-0.7
0.7
-0.8
-1.5
1.5
1.0
17782.79
-0.7
0.7
-0.7
-1.5
1.5
1.0
18836.49
-0.7
0.7
-0.8
-1.5
1.5
1.0
19952.62
-0.7
0.7
-0.9
-1.6
1.6
1.0
1
add numbers in this column to levels read on the LxT2 to correct the level at a specific frequency
2
data includes average free-field microphone response and average effects of reflections and diffraction
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