I am using Plex for Android on my Minix X8-H Plus media player connected to Marantz SR6006 AVR. I have enabled HDMI passthrough on the Minix player and it passes through dts audio files to my AVR for decoding but not Dolby Digital files for some reason.
Dolby Digital files play in 2 channel stereo on the AVR. Are there separate settings for dts and Dolby Digital in Plex? I have checked both under the Advanced Settings.