Weird audio mute issue with Godot 4.5

GlyphTheWolf

Hi,

I just recently moved my project to Godot 4.5 and I noticed some very weird issues with audio.
I believe that have to be some bug or regression, but I can't really even report it, because I have no idea when and why it exactly happens.

The issue is that sometimes, very randomly, all audio just dissapear. There is no music, no effect, no audio at all, even not from players directly playing audio (I mean not positional players in the world, but for example some UI effects etc.). There are no errors or warnings or any message from Godot, even in verbose mode, so it makes very hard to find what could happen...

What I was able to notice is that this issue happens mostly when I fight with monster (monster use some players for effects from animations and some used from code), when issue happens, there is no audio at all (it's like everything would be muted), but when I kill monster and it's object is being free, then audio come back (and there is again music, UI effects etc.).

I have never had such issue with Godot 4.4.1, but with Godot 4.5 it happens very often, what worry me, because that makes using it very unstable for me. Maybe someone knows anything about that or at least could possibly point in any direction what could cause such issue?

I checked issues on Github and there is one similar issue, related with audio being muted when listener quaternion is wrong (if I recall properly what they said in that issue), but in my case I can't notice any relation between rotation and this issue, also same code works fine in Godot 4.4.1 and never faced such issue before.

Any help would be appreciated.

DaveTheCoder

GlyphTheWolf but when I kill monster and it's object is being free, then audio come back

That sounds like the monster code, or other code that's executed only when the monster exists, is doing something that blocks the audio.

Can you make an MRP? I realize that may be difficult, since the issue is "sometimes, very randomly".

ArDanZ11

GlyphTheWolf You shouldn't have transferred your project to Godot 4.5 if it was still in progress. Also, if the audio problems show in Linux, try Windows.

GlyphTheWolf

DaveTheCoder Can you make an MRP?

Well, if I could, then I could also report this as an issue on Github, but yeah, I still don't really know what exactly cause this issue. In many cases it happened when I defend from monster hit, so I initially thought maybe it's something related with hit blocking sound, but I removed all that logic (both logic for blocking sounds and hit sounds) and issue still happened randomly, so it's clearly not related with that part.

DaveTheCoder That sounds like the monster code, or other code that's executed only when the monster exists, is doing something that blocks the audio.

Maybe yes, because I actually haven't such issues (I mean, at least not reproduced it yet, but since it's random, maybe I have just more luck) when fighting with other characters (like NPCs), however monsters and NPCs are very similar and monsters are even simpler than NPCs, so not sure why monsters specifically would cause issue. It also happens for different monsters, so it doesn't seems to be related with specific audio clip too. It would be strange for me though if that would be monster code what is causing issues, because it worked fine in Godot 4.4.1 (and all previous versions I used) and code is actually pretty simple (I don't have any special effects for audio, just simple loading audio clip and calling play(), that's all in most cases).

kuligs2

Im assuming youre on linux, because linux still have audio issues in 2025. Well maybe you shouldnt have moved mid project to a new godot engine version.. its always a bad idea.. mrp is warranted here

GlyphTheWolf

kuligs2 Im assuming youre on linux

Ah, I haven't specified, that's my bad. I am using Windows actually. I mean sometimes I test it on Linux too, but most development and testing I do on Windows (currently Windows 10).

kuligs2 Well maybe you shouldnt have moved mid project to a new godot engine version

Yeah, I know that's always dangerous, but since I work on my project as a hobby and I don't predict I will finish it anytime soon I like to update engine whenever new stable version is released (I don't use dev versions though, because then it would be mostly tracking issues instead of moving forward with project). Of course I always backup old version before I update to new one, so I could just revert to previous version and stick with Godot 4.4.1 for now, but I hope maybe someone had/have similar issue or something else will be changed in the future and this will be fixed?

By the way, also one additional information is that this issue happens mostly with my headphones, I wasn't able (yet?) to reproduce it also using PC speakers, so maybe that's something specific with hardware?

kuligs2

GlyphTheWolf MRP please

GlyphTheWolf

kuligs2 MRP please

I will try to reproduce it or find out more detailed conditions when issue happens, but for now I have no idea why it happens and what exactly triggers it. Even in my project it doesn't happen 100%, sometimes it works ok, but overall it happens pretty often.

Here is video I uploaded with issue from my project. What you can hear in the video is exactly what I hear during playing project.

GlyphTheWolf

I believe this issue is actually related with AnimationPlayer or AnimationTree. I noticed similar issues reported on Github, with similar outcome (all audio muted).

Idea that it's related with audio tracks being used in AnimationPlayer makes sense. I can't reproduce this issue when fighting with NPCs, because my NPCs doesn't use audio tracks in animations yet, but monsters use. Also I tested that when I disable all audio tracks in animations I can't reproduce this audio mute issue (at least not reproduced yet).

GlyphTheWolf

Some information if someone would face similar audio issue:

It seems to be some issue related with audio tracks being used in AnimationTree blend spaces (1D or 2D). I checked that it doesn't reproduce if audio tracks are disabled in all animations used in BlendSpace
It also seems that using AnimationTree in non-deterministic mode also fix this issue, so maybe it can be used as workaround for now.