Server Version#: Version 1.27.2.5929 (newest as of 30 July 2022) on Windows 7
Player Version#: Version 9.5.0.33736 (newest as of 30 July 2022) on Sony Bravia TV.
- Same problem exists also with Plex app for Firestick
Problem : Playing EAC-3 ATMOS music files with Plex does pass through ATMOS information to an ATMOS receiver or ATMOS soundbar. To clarify these are lossy EAC-3 “audio only” music files that have ATMOS information (Note - Works fine with Emby). See below for MediaInfo of a sample Dolby ATMOS music file :
General
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/dby1)
File size : 28.2 MiB
Duration : 5 min 6 s
Overall bit rate mode : Constant
Overall bit rate : 771 kb/s
Audio
ID : 1
Format : E-AC-3 JOC
Format/Info : Enhanced AC-3 with Joint Object Coding
Commercial name : Dolby Digital Plus with Dolby Atmos
Codec ID : ec-3
Duration : 5 min 6 s
Bit rate mode : Constant
Bit rate : 768 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 28.1 MiB (100%)
Service kind : Complete Main
Default : Yes
Alternate group : 2
Encoded date : UTC 2021-12-01 18:34:34
Tagged date : UTC 2021-12-01 18:34:34
Complexity index : 16
Number of dynamic objects : 15
Bed channel count : 1 channel
Bed channel configuration : LFE
Problem continued : *NOTE - These same ATMOS music files play fine with ATMOS using Emby so we know it’s a Plex bug. Plex Dashboard says these files are DirectPlaying but since it’s not showing up as ATMOS to the receiver or soundbar we know that’s not true. Do you need a copy of this ATMOS music file for troubleshooting purposes? What other info do you need?
NOTE - Video files with an EAC3 Atmos audio soundtrack play fine. It’s just “AUDIO ONLY” EAC3 with ATMOS that don’t.
Cheers
