B A 71 dB

C A 70 dB

C C 73 dB

C B 71 dB

C A 73 dB

C C 71 dB

C B 73 dB

D A 71 dB

D B 73 dB

A B 70 dB

B B 73 dB

B A 71 dB

D B 73 dB

A A 71 dB

B B 73 dB

E A 69 dB

B A 71 dB

B B 72 dB

B B 72 dB

B B 72 dB