C
A
67 dB
C
A
67 dB
C
A
A
B
69 dB
C
A
A
A
71 dB
C
A
67 dB
A
A
A
C
B
B
67 dB
B
B
C
A
B
A
C
A
68 dB
A
B
A
A
71 dB
C
A
68 dB
A
A
B
A
67 dB
C
A
C
A
69 dB
D
B
69 dB
D
A
69 dB