hmmm. You can’t play audio in the background (this is not necessarily true just requires some work), but other than that I have not heard or read about any limitation. Do you have example of the sound file you are trying to play or the code?
You might find a solution there. We rely on this API’s functions to adjust pitch and have never had a problem on any platform so I’m not sure why they don’t have this on the documentation. hope it helps