3M BK4936, Version A: QE7052 C-Weighting

Page 6 Self Generated Noise
Octave Band
053-469 RevC
SoundPro models SE and DL Data Addendum
Table A.9- Slow Response and LEQ
When using 18 pF, 50 Ohm Termination
A Weighting, Slow Response, LEQ
Range
(dB)
16 Hz
(dB)
31.5 Hz
(dB)
63 Hz
(dB)
125 Hz
(dB)
250 Hz
(dB)
500 Hz
(dB)
1000 Hz
(dB)
2000 Hz
(dB)
4000 Hz
(dB)
8000 Hz
(dB)
16 kHz
(dB)
in dB
in dB
in dB
in dB
in dB
in dB
in dB
in dB
in dB
in dB
in dB
in dB
-10 to 70
-16.9
-10.0
-0.3
6.5
11.2
14.0
15.3
15.7
15.8
15.2
12.4
0 to 80
-16.9
-10.0
-0.2
6.5
11.1
13.9
15.2
15.5
15.7
15.1
12.2
10 to 90
-15.9
-9.8
-0.4
6.6
11.1
13.8
15.2
15.5
15.5
15.1
12.1
20 to 100
-6.8
-6.6
-0.6
6.3
10.9
13.7
15.3
14.5
14.3
17.3
17.3
30 to 110
3.0
3.2
6.2
9.2
12.3
15.3
18.3
21.3
24.3
27.3
27.3
40 to 120
12.9
13.2
16.2
19.2
22.3
25.3
28.3
31.3
34.3
37.3
37.3
50 to 130
23.2
23.2
26.2
29.2
32.3
35.3
38.3
41.3
44.3
47.3
47.3
60 to 140
33.2
33.2
36.2
39.2
42.3
45.3
48.3
51.3
54.3
57.3
57.3
C-Weighting
Table A.10 - Fast Response and SPL
When using 18 pF, 50 Ohm Termination
C Weighting, Fast Response, SPL
Range
(dB)
16 Hz
(dB)
31.5 Hz
(dB)
63 Hz
(dB)
125 Hz
(dB)
250 Hz
(dB)
500 Hz
(dB)
1000 Hz
(dB)
2000 Hz
(dB)
4000 Hz
(dB)
8000 Hz
(dB)
16 kHz
(dB)
-10 to 70
21.8
24.2
23.8
22.2
19.4
17.2
15.2
14.2
13.8
13.2
10.3
0 to 80
22.3
24.9
24.6
22.4
19.4
16.9
15.3
14.1
13.7
13.0
10.1
10 to 90
21.1
24.6
24.8
22.1
19.8
17.0
15.1
13.9
13.7
13.0
10.1
20 to 100
22.4
24.1
24.8
22.2
19.6
17.3
15.0
13.9
13.7
13.0
11.3
30 to 110
22.7
24.6
24.4
22.3
19.5
17.0
15.1
12.7
15.3
18.3
18.3
40 to 120
22.3
24.6
23.8
22.8
19.7
16.3
19.2
22.3
25.3
28.3
28.3
50 to 130
25.6
26.2
24.9
23.0
23.2
26.2
29.2
32.3
35.3
38.3
38.3
60 to 140
34.4
30.0
28.1
30.2
33.2
36.2
39.2
42.3
45.3
48.3
48.3
70 to 150
80 to 160
90 to 170
67.6
64.7
70.7
73.8
76.8
79.8
82.8
82.8
85.8
88.8
88.8
Table A.11- Fast Response and LEQ
When using 18 pF, 50 Ohm Termination
C Weighting, Fast Response, LEQ
Range
(dB)
16 Hz
(dB)
31.5 Hz
(dB)
63 Hz
(dB)
125 Hz
(dB)
250 Hz
(dB)
500 Hz
(dB)
1000 Hz
(dB)
2000 Hz
(dB)
4000 Hz
(dB)
8000 Hz
(dB)
16 kHz
(dB)
-10 to 70
22.9
25.2
24.3
22.2
19.6
17.3
15.4
14.2
13.9
13.2
10.2
0 to 80
22.2
25.0
24.3
22.2
19.3
17.1
15.2
14.0
13.8
13.1
10.1
10 to 90
21.7
24.3
24.2
22.0
19.5
17.2
15.2
14.0
13.7
13.0
10.1
20 to 100
21.6
24.2
24.4
22.1
19.7
17.1
15.1
14.0
13.6
13.0
11.3
30 to 110
22.0
24.7
24.1
22.4
19.7
17.0
15.1
12.7
15.3
18.3
18.3
40 to 120
22.7
25.3
24.7
22.6
19.6
16.3
19.2
22.3
25.3
28.3
28.3
50 to 130
25.7
26.2
24.9
23.1
23.2
26.2
29.2
32.3
35.3
38.3
38.3
60 to 140
33.7
30.8
28.6
30.2
33.2
36.2
39.2
42.3
45.3
48.3
48.3
90 to 170
67.7
64.7
67.7
70.7
73.8
76.8
79.8
82.8
85.8
88.8
85.0