E
C
D
C
72 dB
C
A
C
A
C
A
E
C
C
A
D
C
72 dB
C
A
E
C
C
A
D
C
72 dB
C
C
72 dB
C
A
C
C
72 dB
E
C
C
C
72 dB
D
C
72 dB
C
A
D
C
72 dB
C
A