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