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