HDMI is a standard that allows sending uncompressed ... The next suggestion is to update the audio driver, listed as Intel Display Audio or AMD Display Audio. Go to Device Manager ( Win + X ...

HDMI audio drivers are included with the graphics driver available for your Intel NUC product.

If you recently updated the audio driver and then this issue started, then maybe you want to roll back the driver to the previous version and see if that helps. Sometimes ATI HDMI Audio device can ...