Sounds like a rat on your system, malwarebytes and scan it.

You could find in the registry the hkeys for run, hkey (forget which) current Microsoft Windows run (certain it’s that) and it’ll show things set to run with boot, check for something suspicious on that too.

There is no way to limit it in software at least not yet. One option would be to take it apart unplug the speakers and fit some smaller ones that are far quieter, otherwise you’re out of luck sadly