C B 71 dB

C C 73 dB

C A 73 dB

C B 73 dB

C B 71 dB

C B 73 dB

C B 73 dB

C A 69 dB

A B 72 dB

C B 71 dB

C A 71 dB

B A 71 dB

B A 72 dB

C B 73 dB

C A 71 dB

C B 68 dB

C B 68 dB

D B 69 dB

C A 71 dB

C A 72 dB