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Data Addendum
Sound Examiner SE-400 Series
62
Pressure to free field corrections with BK4936 microphone and remote preamp and windscreen (sections: 5.2.8,
9.2.7d)
Note: add to pressure response to get 0⁰incidence free-field response. B&K 4226 calibrator may be used to determine the
pressure field response.
Frequency
in Hz
BK4936 microphone
Pressure Field to
Free Field
Corrections
in dB
32
0.1
40
0.0
50
-0.1
63
-0.1
80
-0.1
100
-0.1
125
-0.1
160
-0.1
200
-0.1
250
0.0
315
0.0
400
0.0
500
0.1
630
0.0
800
-0.1
1000
0.0
1250
0.3
1600
0.2
2000
0.5
2500
0.9
3150
1.4
4000
1.7
5000
2.4
6300
3.1
8000
3.8
10000
5.2
12500
6.2
16000
7.8