C
A
71 dB
C
A
71 dB
D
B
72 dB
C
A
70 dB
C
A
70 dB
C
A
C
A
73 dB
B
B
D
D
72 dB
C
A
C
A
71 dB
C
A
71 dB
C
A
71 dB
C
A
71 dB
D
D
D
72 dB
C
A
71 dB
C
A
C
A
71 dB
C
A
70 dB
C
A
C
A
D
D
72 dB