Hey there ali3alias,
I apologize about the late response on this thread, thank you for being patient! I would recommend that you check out this thread where djtetei explains how they use an HDMI Audio Extractor and their particular setup. Give that thread a quick read, and if you have any more questions afterwards, I'd be happy to help out.
I look forward to your response, and if you have any other questions or concerns for me, please let me know!