[Guilouz]

@Guilouz have you tried the HDMI 1.66 firmware? Some Kaby Lake users reported worse results (broken lossless bitstreaming audio) with the latest 1.72 HDMI firmware so it may be worth trying 1.66 (I've got no other suggestions, in case you are wondering).

Unfortunately Intel in their infinite wisdom have taken the HDMI 1.66 firmware down and no longer provide it, so you'll have to find an alternative source of the 1.66 zip file. Don't blame me if it bricks your system etc.

 No I don't try to downgrade HDMI firmware yet, I ordered a USB-C HDMI adaptater (http://www.belkin.com/us/p/P-F2CU038/) to see if it's the same issue as HDMI, I receive it tomorrow.

A real hassle this NUC7i7BNH... 

 Hi Milhouse,

No changes with USB-C HDMI adaptater, after many test, it seem to be an issue with DTS-HD HRA only, ok with DTS-HD MA

 

Can you try a video with DTS-HD HRA audio ? I can send you a sample if you want