I use cooledit for this. Import the song, edit, convert, set to mono, 24000, 16 bit, apply. Then for volume, I export a track from the rom. Drag that into cool edit. Then do an analyze in it and it shows the average volume in db. Analyze the new track and you can see its average volume. You can use the amplify filter and add or subtract the needed db.

I find most modern music is already heavily compressed so I haven't needed that step.

You guys probably hate this. But I totally redid the entire sound track for acdc. I am not an acdc fan so turning it into a game called "the pinball formally known as acdc".

I made a new translite for it.
Not-ACDC_Translite.jpg

I have an obscure track list. Some of it is:

Ozzy crazy train for Rick n roll train
Guns N roses my Michelle for whole lotta Rosie
Brick Dickinson road to hell for highway to hell
Dark moor from hell for hell ain't a bad place
Metallica for whom the bell tolls for hells bells
Judas Priest electric eye for (whatever track made you shoot at acdc targets as acdc means electric also)
TNT I left. I haven't found a suitable replacement
I have a few others but I have to check.

The translite, music, text, and juke box labels are all changed.

image.jpg

Are you sure you're replacing the track at the correct insertion point? When I did acdc I didn't have this issue.