Denon 3808CI, Optical and DTS-HD.MA TrueHD7.1Atmos

[fzinken]

@chuntmd

I use Optical S/PDIF for audio and HDMI for video (VERO direct to TV).

Went back into the Vero 4k Audio settings and saw where I had enabled the TrueHD. Toggled it off and the 5.1 Dolby Digital popped up on on my old AVR. Video played back flawlessly.

Did you read this info?
https://discourse.osmc.tv/t/connecting-up-your-audio-setup-audio-settings/82441/5

Via SPDIF you would only enable DD and DTS non of the other formats.