C
B
B
B
A
68 dB
C
C
B
B
69 dB
E
B
E
G
B
B
69 dB
E
B
C
A
C
A
70 dB
C
B
69 dB
D
A
70 dB
C
B
70 dB
C
A
70 dB
E
C
C
A