During the investigate the rumor restroom scene I had to turn the music volume up to be able to hear anything
Ah, I just checked the scene and know what you mean! Here's what's happening: I sync the slam and impact sounds during spicy scene directly onto the video itself. This way, I can guarantee that these won't desync if you loop the video for a long time. But what happens is that Renpy, the engine, says the music channel selected to output video sounds is the music channel. So that's why you had to turn up the music volume to hear the impact sounds. And unfortunately, there isn't a super easy solution. Renpy only has Music, Sound and Voice channels, so choosing a different one will only push the problem onto either the moaning channel or the ambience channel (beach waves for example). I'll put it on my list of things to look into though. Thank you for letting reaching out and I hope I was able to shed some light onto it! :)