Is everyone who is having this issue also using Rosetta? I've noticed on my 16" M1 Pro that even if a single Intel program is open that it can cause popping issues in the sound, no matter what app the sound is coming from. The problem is exceptionally worse if I am running specific Intel games or programs. If I am using the Music app and try to compile a game in Unity at the same time, the popping sounds are horrible. I could be totally wrong on this, but all signs are pointing to Rosetta and Intel based apps for me.
As above, it is Intel apps that I have noticed specifically causing my issues. With Rosetta installed, it appears that Apple Music has some of its own Intel processes that run in the background. Forcing these to close solves the issue for me. Also, if you use Steam, note that ipcserver will continue to run even after you close Steam unless you explicitly kill the process (you may have to do this to get the process to quit "
launchctl remove com.valvesoftware.steam.ipctool
"). With all Intel processes closed, I have no popping sound issues.The popping sounds appear to be random when listening to Apple Music. I can't seem to recreate them. However, there is one game on Steam that consistently causes the issue, and it happens specifically as the level reloads. See video of Milli and Greg. Note: I also tried this game with headphones and there is no popping sound. It only happens when using the speakers built into the MacBook.
Also, there seems to be a severity level to these popping sounds. Sometimes they are very loud and sometimes they are barely audible. Again, no clue why.