B A 71 dB

A B 71 dB

A C 73 dB

A C 73 dB

C B 73 dB

B A 69 dB

B A 72 dB

B A 71 dB

C C 72 dB

D A 70 dB

C A 74 dB

C B 73 dB

C B 73 dB

D B 73 dB

C A 74 dB

E A 74 dB

B B 71 dB

B A 71 dB

B A 71 dB