Indeed I do have Airbus cockpit levels - those are easier since the dBA overall SPLs are included in the Airbus data package for sound.
For now all have access to is for the A320 w/ CFM engines:
Ground idle = 67.8dBA
Engines max pwr on-ground w/brakes (71.5%N1) = 73.4dBA
Typical climb profile = 73.4dBA
Cruise FL330 M0.78 = 70.5dBA
Cheers, GY