Hello, my name is Marco and I am an Independent Advisor. I will do my best to help you.
Try this...
-Open Windows start button, and type: Sound Settings and click on it
-Scroll in the new windows to the " Sound control panel " and click.
-Select Speakers as the default playback device.
-Open "Recording" tab, right-click and enable "Show Disabled Devices"
-A recording device called "Wave Out Mix", "Mono Mix" or "Stereo Mix" should appear.
-Right click on the new device and click "Enable"
-Right click on the new device and click "Set as Default Device"
-Double click on the new device to open the Properties window
-Go to the "Listen" tab
-Click on the "Listen to this device" checkbox
-Select your HDMI device from the "Playback through this device" list
Now check if it workSource: https://answers.microsoft.com/en-us/windows/for...
Otherwise you can try with Voicemeeter software
https://vb-audio.com/Voicemeeter/_________________________________________________
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.
Voicemeeter solved the problem. First solution does not work.
Thank you.