C
A
7 dB
E
E
75 dB
C
A
71 dB
C
A
72 dB
E
E
C
B
7 dB
C
A
D
B
72 dB
C
B
C
B
70 dB
D
C
7 dB
C
B
7 dB
C
B
7 dB
C
B
70 dB
C
B
72 dB
C
B
71 dB
C
B
7 dB
E
D
7 dB
C
B
7 dB
C
A
7 dB
C
B
C
A
71 dB
C
B
B
B
70 dB