(C)
1
(D)
1
(E)
(F)
MT*H7P3*WS5**
Frequency (Hz)
2)
Mean attenuation (dB)
3)
Std deviation (dB)
4)
Assumed Protection Value (dB)
1)
393g
MT*H7AWS5**
Frequency (Hz)
2)
Mean attenuation (dB)
3)
Std deviation (dB)
4)
Assumed Protection Value (dB)
1)
368g
MT*H7BWS5**
Frequency (Hz)
2)
Mean attenuation (dB)
3)
Std deviation (dB)
4)
Assumed Protection Value (dB)
1)
358g
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2
2
63
125
250
500
17.2
18.6
23.2
30.8
3.8
2.7
2.7
4.4
13.4
15.9
20.4
26.3
5)
63
125
250
500
19.2
17.4
24.0
31.9
4.0
2.8
2.9
3.0
5)
15.2
14.5
21.1
28.9
63
125
250
500
17.0
15.6
21.8
30.8
3.8
3.8
3.5
2.9
5)
13.2
11.8
18.2
27.9
3
3
1000
2000
4000
8000
35.4
35.5
37.0
34.2
2.5
4.2
3.2
3.7
32.9
31.2
33.8
30.5
SNR=31 db H=32 db M=29 db L=22 db
1000
2000
4000
8000
34.4
35.1
37.0
35.1
2.6
4.3
4.0
3.2
31.9
30.8
33.1
32.0
SNR=31 db H=32 db M=29 db L=22 db
1000
2000
4000
8000
32.7
33.6
36.4
34.9
2.9
2.5
3.3
2.4
29.8
31.1
33.1
32.4
SNR=30 db H=32 db M=27 db L=19 db