FSX Default Boeing 747-400 Sound Fix

@mdlvas I'm sorry to hear that. May I know which version of fsx are you using?

I'm using Steam Edition. And did you install it correctly?

Otherwise do one thing,

Go to your Fsx main folder and go to the 747 folder. In that, delete the sound and sound ai folder. Now copy the sound and sound ai folder from 737 and paste it in 747. Now go into sound folder and open sound.cfg with notepad. In that, erase eng1_jet_whine=JET_WHINE.1.00 and eng2_jet_whine=JET_WHINE.2.00.

Come down and erase [JET_WHINE.1.00] and [JET_WHINE.2.00] (fully). And then delete the files ban11 and bbn11 in the sound folder. That's it!

Hope it works