C B 72 dB

C A 75 dB

D B 73 dB

C A 73 dB

C A 73 dB

C A 73 dB

C B 73 dB

C A 72 dB

D B 74 dB

D A 72 dB

C A 73 dB

C A 73 dB

C B 73 dB

C A 75 dB

C B 73 dB

D B 74 dB

D A 74 dB

C B 68 dB

B B 72 dB

B C 75 dB