Server===
plex server Version 1.1.4.2757
freenas FreeNAS-9.10.1 (freebsd)
Pentium G3258 @ 3.20GHz
8GB ram
Client===
XBox One S app version 1.7.1.0
xbox one s audio out: optical, bitstream, dolby digital
Content===
M2TS file: h264 + DTS-MA 5.1
hd_dts_hd_master_audio_sound_check_5_1_lossless.m2ts
download at http://kodi.wiki/view/Samples
Scenario===
Plex server is directstream transcoding the DTS-MA 5.1 --> multichannel AAC
This can be seen in the Plex Media Server.log
on the “Job running:” line where it is using the experimental aac options
Bug===
The 5.1 channels of audio have been corrupt when played and heard from speakers.
The most obvious is that the rear left and rear right channels have been merged/blended.
Meaning that when the test file is played, it should only have audio coming from a single speaker.
Instead, when any rear channel is played, sound comes out of both rear speakers rather than a single rear speaker.
Workaround===
Don’t use AAC.
To do this, I created a custom plex server profile and removed aac.
copied Xbox One.xml
from /usr/local/share/plexmediaserver/Resources/Profiles
to /usr/local/plexdata/Plex Media Server/Profiles
edited the file and changed TranscodeTargets VideoProfile
from audioCodec=“aac,ac3,eac3,mp3”
to audioCodec=“ac3,eac3,mp3”
Now the audio is being transcoded to ac3. Verified with “Job running:” line
The audio from the speakers is now correct and each speaker correctly plays only its single channel
