Replacing Music Files for a Mod?

[tml_ryan]

Hi all -- I was interested in making a simple mod that would replace some of the background music in the game, and had a few questions about the audio engine that's built into the system. I went through some of the files and I found the folder with the .ogg files in them. They're listed as such:

Air Combat 1

Geoscape 1

Geoscape 2

Geoscape 3

Ground Combat Day 1

Ground Combat Day 2

Ground Combat Day 3

Ground Combat Night 1

Ground Combat Night 2

Ground Combat Night 3

Main Menu

The listing seems pretty straightforward, but adding additional files to this naming scheme doesn't seem to work. (Air Combat 2, for example.) Are these files hardcoded into the game itself, so am I limited to just replacing these exact files? I've also noticed that the original music for the Air Combat sometimes overrides the new file I put in, even if it's completely gone. Not sure where it's pulling the data from when that happens.

[Grimples]

Look at sounds_gc.xml, it's quite easy to understand & edit.

[tml_ryan]

Oh cool, that makes a lot more sense, thanks.

Does Xenonauts support any other file format other than .ogg? It's kind of a weird format to work with, codec-wise.