C
A
69 dB
C
A
71 dB
C
C
71 dB
B
C
C
C
B
A
69 dB
C
A
69 dB
C
A
71 dB
C
A
69 dB
B
B
7 dB
D
B
71 dB
C
A
D
C
70 dB
B
A
69 dB
C
A
70 dB
A
B
70 dB
C
C
69 dB
B
C
7 dB
C
A
B
A
69 dB
D
C
71 dB