HDMI out to HT receiver with 5.1.2 DTS/Atmos for surround sound.

[DmitriKozlowsky]

So is there DTS/Atmos/Surround audio in DCS, when going to HT receiver from 4th HDMI OUT for audio only. Three panels connected to DP ports, and HDMI to home theater for audio. I do get DTS, Surround, some Atmos audio FX when streaming 4K films and audio encoded YT. However I can't tell if I get spatial audio in DCS. Spatial tests from YT and Yamaha (my receiver) do deliver the spatial audio. I get great DCS stereo audio. But unable to accurately tell if I a getting spatial sound.

[scommander2]

It is an interesting topic.

Was YT played at PC through HDMI over to the receiver?

Thanks.