Holy Eardrums!
This sound must sound COMPLETELY different in some headphones than others. I feel like a Pavlov experimentee, I now associate recompiling c++ failures with mere mildy disappointing build break, but successes with excruciating ear splitting pain.
FIX:
In the Unreal Editor’s content browser, under View Options (lower right), make sure you have “Show Engine Content” checked.
Navigate to /Engine Content/EditorSounds/Notifications.
Right Click “CompileSuccess”.
Select “Reimport With New File”
Select any wav file that doesn’t burst your eardrums.
If you don’t have a .wav file handy, on Windows try something like: “C:\Windows\Media\Windows Feed Discovered.wav”
I dunno which is harder to believe, replying with a fix to a thread that’s 5 years old, or having PTSD from successful compilations. My ears STILL hurt.