Hi Guys, I appreciate as an audio developer how annoying this is, especially when the dash/home music it turns itself back on.
Best fix to eliminate this is to go to your relative install directory and just put an underscore or rename the files you don't want to play EVER.
C:\Program Files\Oculus\Support\oculus-dash\dash\assets\raw\audio_dash\Assets
I'm guessing its this one that annoys you........Hit play to confirm! 🙂
'mus_void_ambisonic.wav' becomes '__mus_void_ambisonic.wav.
You will then have silent bliss!