C
C
69 dB
C
C
69 dB
B
B
71 dB
B
B
71 dB
B
A
A
A
68 dB
C
B
C
C
C
B
71 dB
A
A
B
A
69 dB
C
C
70 dB
C
C
C
C
69 dB
C
A
72 dB
C
C
70 dB
C
C
69 dB
A
A
C
C
C
C
C
C
69 dB