B A 70 dB

E B 73 dB

D B 73 dB

D B 73 dB

A B 70 dB

C A 70 dB

A B 73 dB

C A 68 dB

C A 71 dB

C B 73 dB

D B 73 dB

C B 74 dB

B B 71 dB

B A 70 dB

A A 71 dB

A A 71 dB

B B 70 dB

B A 72 dB

B A 71 dB