I have recently downloaded a number of sound files including one for the default Boeing 747_400. Correct me if I am wrong but the sound file for this a/c defaults to the 737_800 sound file (alias=B737_800\sound) which I assume means both a/c have the same engine sounds etc. The sound.ai also defaults the same way so again I assume a 747 aircraft in traffic makes exactly the same sounds.
My question is:- If I replace the sound file with the one downloaded do I have to change anything in the sound.ai file? Am I right in assuming if I leave it alone, 747 aircraft in traffic will retain the 737_800 sounds? I don't really see the need to change AI aircraft to the new sounds as for me they are mainly there for a "look see" at other traffic.
Any assistance is appreciated.