Question My audio changes whenever I change apps

my audio jumps up and changes.
You might want to grab an audio/video clip of the issue happening for us to get a better semblance of what you're experiencing.

Just an FYI;
The BIOS version you're currently on, F37d, is no longer listed on the support site for your motherboard, update to the latest version, then clear the CMOS and then see if the issue persists.