C
A
68 dB
C
A
67 dB
C
C
C
A
C
C
71 dB
C
A
67 dB
B
A
C
A
D
A
72 dB
B
A
71 dB
A
D
B
71 dB
B
70 dB
D
B
70 dB
B
C
A
68 dB