To remedy the crackling problem just go into the sound settings and turn off "Enable audio Enhancements"
You can do this by typing "sound" into the search bar and clicking the Speaker Icon, this should take you to the desktop view. Double click on the NVidia Speakers and go to Properties. Then at the bottom uncheck it.
Apply it.
And boom. No more crackling. So it's a software issue that hopefully Microsoft will fix.
Also be sure to close everything before you do this otherwise you'll have to restart for the changes to take effect.