C
A
70 dB
C
A
70 dB
C
A
C
A
72 dB
B
A
72 dB
B
A
72 dB
C
A
C
A
72 dB
B
B
70 dB
B
A
72 dB
B
B
70 dB
C
A
68 dB
C
A
68 dB
B
B
70 dB
C
A
70 dB
B
B