C
A
72 dB
C
A
72 dB
C
A
72 dB
C
A
A
B
A
B
A
B
D
A
72 dB
A
B
72 dB
C
A
C
A
72 dB
A
B
72 dB
C
A
71 dB
C
A
72 dB
C
A
72 dB
A
B
72 dB
A
B
72 dB
A
B
72 dB
D
A
72 dB
A
A
72 dB
C
A
B
71 dB
A
B
72 dB
C
B
72 dB