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