I currently have a HTPC connected to my AVR via HDMI and also a two channel analog cable. I need the two channel analog cable because my AVR will only use audio sources for the second zone. I have the HTPC OS (Win 10) setup to output to both the analog audio and the HDMI. However when Microsoft pushes through an update sometimes the audio settings get changed. I would like to know if there is a device which will extract the audio from a HDMI signal?