C
C
75 dB
C
C
75 dB
C
C
75 dB
B
A
75 dB
C
A
C
C
75 dB
C
C
C
A
73 dB
B
A
C
A
C
A
73 dB
B
A
B
A
75 dB
B
A
75 dB
C
A
73 dB
B
A
75 dB
C
A