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