For your "sounds not being loud" question:
I don't know the answer, but maybe I can help with some info of my experiences
- What is the file format you're using? I've had success (with the sound levels sounding correct) using .wav files
- What method are you using to put them into Unity and export them? I wrote up a big post here describing the 2 methods I have heard of:
https://forums.7daystodie.com/forum/...to-game/page3=
Some other ideas:
- I have extracted sounds from the game (.wav extensions, using the UABE tool), made changes to them, and used method #1 to (in the link above) to produce a .unity3d file that sounded, volume wise, just like the native game sounds. I believe (but I have not done this myself) that in Unity you can "move the sound around" from the player, making it more distant or closer. Maybe you have inadvertently placed the sounds to be farther away from the players "ear"?
- I use Audacity as well to manipulate the .wav files I'm using. None of my sounds are stereo, only mono. Just for your info.
- Unity has some options to handle the imported sounds. For my imported ones I left every setting alone so they were all defaults. Maybe there's a setting you changed that is causing the issue?
If nothing else I can confirm that if you export a sound from the game, run it through Unity, and add it back via a modlet, it has (should have) the same volume

. Maybe you could try doing that just to validate that your Unity settings/methods are not the issue, which would point to it being something with your sound files,
- This may be just my ear (I am not an audio engineer or expert!), but it seems a lot of the built in sounds in the game have a lot of "dynamic range" meaning "a lot of low and high frequency sound in each sound file". I noticed this when trying to make new screamer zombie sounds. She has a lot of "high frequency" (which makes sense). When I tried making new sounds from her, they all sounded very muddy/quieter as I was stretching out the audio, changing the pitch, etc (which makes sense). I'm wondering if your sounds don't have a wide range, or maybe, the game does some sort of processing to amplify/enhance high/low frequencies. Just a wild guess on my part. I'm still learning