C
C
69 dB
C
E
C
E
C
C
C
A
70 dB
C
C
69 dB
D
C
C
C
D
C
C
C
A
C
C
C
C
E
E
E
E
C
D
C
E
D
D
68 dB
C
C
72 dB
D
C
C
C
C
C
A
70 dB