D
A
70 dB
C
A
D
A
70 dB
E
A
A
D
A
70 dB
B
B
D
B
70 dB
C
A
70 dB
D
A
70 dB
E
A
D
A
70 dB
E
A
A
E
C
A
72 dB
C
A
C
A
70 dB
D
A
70 dB
E
A
D
B
70 dB
C
A
D
A
70 dB
D
A
70 dB
C
A
70 dB