Issues with start & sustain sounds

[mellowautomata]

I'm sorry if this has been a topic before (likely has), I spent some time searching and apparently lack the right keywords.

So I'm having colossal issues with creating ambient sounds for buildings. I've copied the default Geothermal Plant ambience setup, the clip paths are fine and so on. Everything should work as intended and this has been confirmed by a more experienced modder who looked at the .xml files.

But things aren't working. Here's the issues:

1. With .mp3 files, I couldn't get them to work properly at all. I tried them more than a week ago and I can't remember the details, but if I recall correctly, they just played the start .mp3 file and then nothing. Deconstructing and reconstructing the building didn't give any sounds at all afterwards.

2. With ogg vorbis, things went little better. I could get them to work so that the the sounds start and the sustained sound is looped after that. However, were I to deconstruct a building and reconstruct it (manually or devconsole), it would only play the sustain sound afterwards.

3. I tried today with .wav instead, maybe that would help. It didn't. Now it plays only the starting sound and does what happened at 1. I also tried to construct many of these buildings without deconstructing, I got off multiple start clips, but after some point (I guess when the first audioclip fades out), I can't get them anymore.

This is honestly bit frustrating and chaotic... there's literally no input about what the issue is and this whole thing seems like a mess.

PLEASE READ THE FOLLOWING: I am not talking about using only sustained sounds which work perfectly fine in many mods and I'd imagine would also work if I did sustained sounds only. I'm talking about three different soundclips in identical way to that of Geothermal Plant. At the start of the building, it plays one-shot sound that is "start" and it also seems to start playing the "sustain" sound at that exact time as well. I'm saying this because lot of folks might want to ask me to check a mod X which uses ambient sounds for buildings — lot of those mods use _only_ sustained sounds without start / stop! So please, make sure that if you suggest me to check out a mod, that mod should also have start/stop files.

PS. I am also not sure what stop files are for, but I am imagining that they are for building breakdown events. I have not yet tested triggering them.

Thanks in advance,
mellowautomata

EDIT: There was a fourth problem but actually that was just my bad, had the game paused while testing and sustained sounds don't play when paused, only one-shots it seems.