19"

C B 72 dB

C C 73 dB

D D 71 dB

C A 71 dB

B A 69 dB

B A 71 dB

D E 72 dB

A A 70 dB

D B 71 dB

D A 72 dB

C D 70 dB

A B 70 dB

A B 71 dB

C A 71 dB

A B 70 dB

A B 67 dB

C A 70 dB

A A 70 dB

A B 72 dB

A A 69 dB

C B 71 dB

B A 70 dB

A B 69 dB

A C 71 dB