C
E
C
C
D
C
70 dB
D
C
70 dB
C
C
69 dB
E
C
C
D
C
70 dB
D
C
70 dB
E
C
E
C
E
C
C
C
B
70 dB
D
C
70 dB
E
C
C
C
B
70 dB
D
C
70 dB
C
D
C
70 dB
C
C
69 dB
C
B
70 dB