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