STEP 1
Click the Start button and begin typing "Sounds". Select Change System Sounds in the Best Match Tab below.
STEP 2
Under the Playback tab, select the desired playback device, then select Set Default, click OK.
NOTE: Each system is different, so what you see will reflect that. Your current default device will be indicated by a green check mark.
If your computer says that the HDMI Output is your default device, you need to right-click or tap on Speakers, and then choose Set Default. Click okay to close that window after setting speakers as the default.
If you do not see these option or are having issues changing the audio source, please submit a IT Service Desk Ticket with the link Below.
BISD - IT Service Desk