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