C
D
C
C
70 dB
C
C
67 dB
C
C
D
D
67 dB
C
C
67 dB
C
C
70 dB
C
C
70 dB
C
C
70 dB
C
C
70 dB
C
C
70 dB
C
C
70 dB
C
C
C
C
C
C
67 dB
C
C
C
C
C
C
67 dB
C
C
C
C
70 dB
C
C
67 dB
C
C
67 dB
C
C
C
C