I am using the NVIDIA SHIELD as the server and Android TV player with passthrough audio.
I've tried both the part 1 mkv straight from the blu-ray as well as the combined file using MKVtoolnix and both stream "DTS" to the receiver instead of DTS-HD MA. Plex identifies the audio track as DTS-HD MA (as does Handbrake if I read in the file). Also, other DTS-HD MA files play back correctly streaming the audio. Anybody else have this issue??
mediainfo
Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Format profile : MA / ES Discrete / Core
Mode : 16
Format settings, Endianness : Big
Codec ID : A_DTS
Duration : 3 h 48 min
Bit rate mode : Variable / Constant / Constant
Bit rate : 4 741 kb/s / 1 509 kb/s / 1 509 kb/s
Channel(s) : 7 channels / 7 channels / 6 channels
Channel positions : Front: L C R, Side: L R, Back: C, LFE / Front: L C R, Side: L R, Back: C, LFE / Front: L C R, Side: L R, LFE
Sampling rate : 48.0 kHz
Frame rate : 93.750 FPS (512 spf)
Bit depth : 24 bits
Compression mode : Lossless / Lossy / Lossy
Stream size : 7.56 GiB (14%)
Title : Surround 6.1
Language : English
Default : Yes
Forced : No