D A 72 dB

D A 71 dB

C A 72 dB

B A 70 dB

A A 72 dB

B B 68 dB

D A 71 dB

A B 69 dB

D A 71 dB

C A 72 dB

A B 70 dB

D A 71 dB

D D 70 dB

C B 71 dB

D A 69 dB

D A 72 dB

C A 69 dB

C A 72 dB