C
A
A
72 dB
C
B
7 dB
C
A
71 dB
C
B
D
A
7 dB
C
A
71 dB
D
A
72 dB
C
A
A
A
69 dB
C
A
71 dB
C
A
71 dB
D
A
72 dB
F
A