After the recent upgrade of Windows 8 to 8.1, there were several problems associated with HDMI audio.

Some of them will go away as there are further updates to this new version.

HP Windows 8.1 HDMI Audio Problem and Solution

One of the problem was on a HP gadget.

The video was without much problems.

One tough solution found for this problem was to switch off the notebook or laptop completely.

Then plug the HDMI cable into the TV and switch it on.

After that start your HP Envy notebook.

But a more complete solution is to use these drivers from Intel.

His HDMI audio was not working properly after Windows 8.1 update.

If the updates dont install automatically, you better install them manually.

Also, restart the computer after plugging in the HDMI cable on both ends.

The problem cause is not because of audio drivers, but related to video driver.

This article was written on the basis of Google research.