More a/c db levels from my last trip:
73.5 db A320 CEO Row 12 over wing CFM56
74.5 db A320 CEO Row 11 Over wing CFM 56
75 db A320 CEO Row 23 CFM 56
71.0 db A319 Row 10 over wing CFM 56
70.0 db at climb, 69.5 db cruising alt/speed Boeing 787-900 Row 8 Exit GENX
70.5 db at climb, 76 db cruising CRJ 900 Row 1