UE4.25 Audio Engine Bugs - Update from 4.22 - need help!

[Allenheathx]

@luoyeshu

I tried Stream Caching, and I primed every sound on demand, it’s not fix this bug, so I leave it back bacause it is a experimental setting, I didn’t want anything uncertain when I tring to fix a problem.

If you didn’t try it on an iOS device, I can discribe this bug exactly for you: just image when you playing a shooting game and there are many shooting sound effects and the back ground music, you can notice all of the sounds (the back ground music is mostly noticeable) are cut off every 1-5s once, and get back 0.2-1s after that. Sounds off and on like overloaded. And it only happens when running on an iOS device.

And I found another bug: concurrency settings (Just like: Resoluton Rule = Stop Oldest) has a very different result on iOS device than Editor. What break the Audio Engine’s consistency on iOS?

Have you tested it? If you had trouble with 4.25 remote build to iOS, Yes it is a bug, but I find a way to fix it you can found in this thread, I don’t know if this 2 bug related. it’s about UE4Rules.dll

One thing I Think ive noticed is that I have a specific widget that if I open it, the audio seems to go down hill from there (even after closed). The widget has no audio or anything but it seems like after this specific widget has been opened the audio gradually starts breaking up over time. Maybe try a test build of your game with no widgets or menus?