C
A
73 dB
B
B
75 dB
C
A
75 dB
B
A
74 dB
C
A
75 dB
C
A
C
B
75 dB
C
B
75 dB
C
B
75 dB
C
A
75 dB
C
A
C
A
73 dB
B
C
71 dB
C
A
C
B
C
C
C
C
75 dB
B
B
73 dB
B
B
71 dB
B
C
C
75 dB
C
B
75 dB
D
D
74 dB
D
B
74 dB