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7.3 Corrections of the electret microphone
The following corrections are measured by the electret microphone and the power
supply.
Corrections of the electret microphone
d
10,0
B
5,0
0,0
Freq. [Hz] Value [dB] Freq. [Hz] Value [dB] Freq. [Hz] Value [dB] Freq. [Hz] Value [dB]
200
0,000
224
0,002
250
0,004
280
0,006
315
0,009
355
0,013
400
0,017
450
0,022
500
0,027
560
0,034
Extended uncertainties: U=0.19 (k=2) at <= 4 kHz, U=0.34 (k=2) at 4 kHz to 10 kHz,
U=0.39 (k=2) at >= 10 kHz.
SW-BA-e-2020
630
0,043
710
0,053
800
0,065
900
0,080
1000
0,096
1120
0,116
1250
0,140
1400
0,170
1600
0,213
1800
0,260
H
z
2000
0,312
2240
0,378
2500
0,456
2800
0,554
3150
0,678
3550
0,832
4000
1,020
4500
1,245
5000
1,488
5600
1,798
6300
2,184
7100
2,651
8000
3,204
9000
3,840
10000
4,488
11200
5,264
12500
6,081
14000
6,960
16000
7,956
18000
8,664
20000
9,272
51
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