C
C
A
72 dB
C
B
C
A
72 dB
E
B
B
C
A
72 dB
D
B
72 dB
D
B
70 dB
C
A
72 dB
D
B
72 dB
C
B
C
A
72 dB
E
B
C
A
72 dB
C
B
74 dB
B
A
C
B
B