C
A
69 dB
D
C
70 dB
E
C
70 dB
B
A
70 dB
B
A
70 dB
B
A
70 dB
B
A
70 dB
B
A
70 dB
B
A
70 dB
B
A
70 dB
B
A
70 dB
B
A
70 dB
B
A
70 dB
B
A
70 dB
C
A
69 dB
B
A
70 dB
B
A
70 dB
B
A
69 dB
A
B
68 dB
B
B
67 dB