D
B
73 dB
C
B
70 dB
D
C
71 dB
C
A
71 dB
C
A
70 dB
E
C
C
A
71 dB
C
A
D
B
72 dB
F
C
C
A
72 dB
C
A
C
A
71 dB
C
A
71 dB
C
A
C
A
70 dB
A
A
C
A
69 dB
D
A
69 dB
A
A
71 dB
C
D
C
A
E
C
71 dB