C
A
72 dB
C
A
72 dB
C
A
C
A
70 dB
C
A
70 dB
C
A
C
A
72 dB
C
A
72 dB
C
A
72 dB
C
A
72 dB
C
A
C
B
72 dB
C
B
72 dB
C
B
B
A
B
A
69 dB
C
B
69 dB
C
B