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Tabla 2: Council of Physical Therapy 2ª Fórmula
Pérdida
500
en dB
(Hz)
5
10
0.2
15
0.5
20
1.1
25
1.8
30
2.6
35
3.7
40
4.9
45
6.3
50
7.9
55
9.6
60
11.3
65
12.8
70
13.8
75
14.6
80
14.8
85
14.9
90
15.0
95
15.0
100
1000
2000
4000
(Hz)
(Hz)
(Hz)
0.3
0.4
0.1
0.9
1.3
0.3
2.1
2.9
0.9
3.6
4.9
1.7
5.4
7.3
2.7
7.7
9.8
3.8
10.2
12.9
5.0
13.0
17.3
6.4
15.7
22.4
8.0
19.0
25.7
9.7
21.5
28.0
11.2
23.5
30.2
12.5
25.5
32.2
13.5
27.2
34.4
14.2
28.8
35.8
14.6
29.8
37.5
14.8
29.9
39.2
14.9
30.0
40.0
15.0
187
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