3M Version A: QE7052 Microphone User Manual


 
Page 11 Self Generated Noise
1/3 Octave Band
053-469 RevC
SoundPro models SE and DL Data Addendum
Table A.23- Fast Response and LEQ
When using 18 pF, 50 Ohm Termination
A Weighting, Fast Response, LEQ
Range
12.5
Hz
16
Hz
20
Hz
25
Hz
31.5
Hz
40
Hz
50
Hz
63
Hz
80
Hz
100
Hz
125
Hz
160
Hz
200
Hz
250
Hz
315
Hz
400
Hz
500
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
-10 to 70
-16.9
-16.9
-16.9
-16.9
-15.8
-12.1
-10.0
-6.2
-3.3
-1.1
0.6
3.1
4.1
5.4
6.0
7.0
7.9
0 to 80
-16.9
-16.9
-16.9
-16.9
-16.0
-12.8
-9.5
-6.6
-3.9
-1.5
0.7
3.3
3.8
5.4
6.3
7.4
7.8
10 to 90
-16.9
-16.5
-16.9
-16.1
-16.2
-12.5
-9.4
-6.7
-3.7
-1.3
0.6
3.3
4.0
5.4
6.3
6.9
7.9
20 to 100
-15.1
-6.6
-14.6
-9.5
-12.4
-10.7
-8.3
-6.5
-3.4
-0.8
1.3
3.0
4.0
5.3
6.5
7.2
7.7
30 to 110
-5.9
3.4
-4.1
-0.8
-3.6
-5.7
-5.0
-3.7
-2.4
-0.8
0.7
3.1
4.0
5.2
5.9
6.9
7.6
40 to 120
3.7
13.4
5.5
10.2
6.4
3.5
4.3
4.7
4.4
7.2
7.2
7.2
10.2
10.2
10.2
13.2
13.2
50 to 130
14.2
23.1
14.5
20.0
17.2
14.5
14.3
14.6
14.2
17.2
17.2
17.2
20.2
20.2
20.2
23.2
23.2
60 to 140
24.0
33.7
24.8
29.9
27.2
24.0
24.3
24.4
24.2
27.2
27.2
27.2
30.2
30.2
30.2
33.2
33.2
90 to 170
61.9
59.8
57.4
58.3
56.9
54.6
55.8
56.6
55.7
58.7
58.7
58.7
61.7
61.7
61.7
64.7
64.7
Range
630
Hz
800
Hz
1000
Hz
1250
Hz
1600
Hz
2000
Hz
2500
Hz
3150
Hz
4000
Hz
5000
Hz
6300
Hz
8000
Hz
10
kHz
12.5
kHz
16
kHz
20
kHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
-10 to 70
8.4
8.5
8.9
9.0
9.0
9.1
9.4
9.5
9.6
9.9
9.8
9.7
9.2
8.2
6.9
5.2
0 to 80
8.2
8.6
8.9
9.1
9.1
9.1
9.3
9.5
9.7
9.8
9.6
9.7
9.1
8.1
6.8
5.1
10 to 90
8.3
8.4
8.9
9.0
9.0
9.1
9.2
9.5
9.6
9.7
9.6
9.6
9.1
8.0
6.7
5.2
20 to 100
8.2
8.3
8.7
9.1
9.0
9.0
9.2
9.2
9.3
9.6
9.8
9.9
8.4
8.3
8.3
8.3
30 to 110
8.1
8.0
9.0
9.1
9.2
9.2
9.3
12.3
12.3
12.3
15.3
15.3
15.3
18.3
18.3
18.3
40 to 120
13.2
16.2
16.2
16.2
19.2
19.2
19.2
22.3
22.3
22.3
25.3
25.3
25.3
28.3
28.3
28.3
50 to 130
23.2
26.2
26.2
26.2
29.2
29.2
29.2
32.3
32.3
32.3
35.3
35.3
35.3
38.3
38.3
38.3
60 to 140
33.2
36.2
36.2
36.2
39.2
39.2
39.2
42.3
42.3
42.3
45.3
45.3
45.3
48.3
48.3
48.3
90 to 170
64.7
67.7
67.7
67.7
70.7
70.7
70.7
73.8
73.8
73.8
76.8
76.8
76.8
79.8
79.8
79.8