# TrueHD Atmos Direct Play, TrueHD 7.1 Transcode **URL:** \ **Category:** Plex Players\ **Tags:** server-nvidia-shield, android-tv\ **Created:** [January 11, 2021, 11:27pm UTC](https://forums.plex.tv/t/truehd-atmos-direct-play-truehd-7-1-transcode/677276 "2021-01-11T23:27:04Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![endiZ](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/endiz/32/137854_2.png) [@endiZ](https://forums.plex.tv/u/endiZ)\ **Post date:** [January 11, 2021, 11:27pm UTC](https://forums.plex.tv/t/truehd-atmos-direct-play-truehd-7-1-transcode/677276/1 "2021-01-11T23:27:05Z")
Setup: TV - LG C7 AVR - JBL Bar 9.1.4 Player - Nvidia Shield TV Pro (Latest Model) Server - Docker Image Nvidia shield \> JBL Bar HDMI \> LG C7 HDMI I’ve noticed that TrueHD with atmos direct plays with my setup, but non-atmos TrueHD plex direct streams and converts the audio stream to EAC3 7.1. Anyone else experiencing this discrepancy? Direct Steam TrueHD 7.1: ![image](https://global.discourse-cdn.com/plex/original/3X/a/9/a9e01fdb6c313811c6f8f9b8d32d6d727deb65eb.jpeg) Direct Play TrueHD Atmos: ![image](https://global.discourse-cdn.com/plex/original/3X/c/e/ce6d8c1b56bce04c5d8427a3b5815c07653e0068.jpeg) Logs attached [Plex Media Server Logs\_2021-01-11\_18-24-51.zip](https://forums.plex.tv/uploads/short-url/yHKlBN44KdhOcsnlSLi5Olh3y5X.zip) (1.9 MB) ---
**Author:** ![endiZ](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/endiz/32/137854_2.png) [@endiZ](https://forums.plex.tv/u/endiZ)\ **Post date:** [January 12, 2021, 12:09am UTC](https://forums.plex.tv/t/truehd-atmos-direct-play-truehd-7-1-transcode/677276/3 "2021-01-12T00:09:28Z")
Just to add, Plex Add-On for Kodi does not transcode the audio and plays fine (if setup to passthrough properly) ![image](https://global.discourse-cdn.com/plex/original/3X/1/8/186282c6caec0f5c677ecb2dad61d3035e50c63d.jpeg) ![image](https://global.discourse-cdn.com/plex/original/3X/a/e/ae7f9de458f115a669d7998cfec424b413a3c683.jpeg) Attached the latest logs again that includes Kodi Plex-Addon Direct Play [Plex Media Server Logs\_2021-01-11\_18-58-43.zip](https://forums.plex.tv/uploads/short-url/nyqrmEVZiEbluziKkMa1x20F8B3.zip) (1.8 MB) ---
**Author:** ![FordGuy61](https://avatars.discourse-cdn.com/v4/letter/f/22d042/32.png) [@FordGuy61](https://forums.plex.tv/u/FordGuy61)\ **Post date:** [January 12, 2021, 12:56am UTC](https://forums.plex.tv/t/truehd-atmos-direct-play-truehd-7-1-transcode/677276/4 "2021-01-12T00:56:50Z")
The log files do not have enough detail. There is no mention of The Hobbit or 1917. Please set your server for debug, not verbose, level logs and play ~30 seconds The Hobbit using the Shield. No need for Kodi logs. See [Reporting Issues with Plex Media Server](https://support.plex.tv/articles/201643703-reporting-issues-with-plex-media-server/). Also, please include the [XML Information](https://support.plex.tv/articles/201998867-investigate-media-information-and-formats/) for each movie. Save it as a .txt or zip it. The forum does not support .xml attachments. ---
**Author:** ![endiZ](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/endiz/32/137854_2.png) [@endiZ](https://forums.plex.tv/u/endiZ)\ **Post date:** [January 12, 2021, 1:20am UTC](https://forums.plex.tv/t/truehd-atmos-direct-play-truehd-7-1-transcode/677276/5 "2021-01-12T01:20:53Z")
Strange, enabling debug logging and rebooting the plex server now direct plays the content fine: ![image](https://global.discourse-cdn.com/plex/original/3X/6/d/6df2219c030260995a39c05e05bca077869bdca4.jpeg) Regardless, I’ve also attached the log and xml(txt) file if you’re interested in looking at them. [49956.xml.txt](https://forums.plex.tv/uploads/short-url/7DR80aqtY7oHmEn8y1x3oHcYJeu.txt) (116.0 KB) [Plex Media Server Logs\_2021-01-11\_20-18-58.zip](https://forums.plex.tv/uploads/short-url/a5USRRKeIJf1Z0wJORgSMMLDnhd.zip) (1.6 MB) I’ll go ahead and disable debug logging, reboot and try again in case debug logging fixes some strange bug. ---
**Author:** ![endiZ](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/endiz/32/137854_2.png) [@endiZ](https://forums.plex.tv/u/endiZ)\ **Post date:** [January 12, 2021, 3:40am UTC](https://forums.plex.tv/t/truehd-atmos-direct-play-truehd-7-1-transcode/677276/6 "2021-01-12T03:40:39Z")
Ok, so I’ve noticed that the issue is intermittent. Sometimes, TrueHD works fine, sometimes it gets transcoded to EAC3. Something also to note: when there is no audio transcoding, Dolby Vision works and gets recognized by my TV. When there is an audio transcode (ex. TrueHD \> EAC3), only HDR is recognized, not Dolby Vision. I’m guessing Dolby Vision encoding somehow breaks when the container is opened and re-packaged with the new audio. I have a few streamers right now, but once they are done I’ll post some more logs. _edit_ here are the logs. First playback had truehd with dolby vision working. second playback falls back to EAC3 transcoding with HDR. I’ve also attached the XML again. .[Plex Media Server Logs\_2021-01-11\_23-49-10.zip](https://forums.plex.tv/uploads/short-url/ioUg33DD07hYxMeNzpNXqq8fDVb.zip) (1.3 MB) [49956.xml.txt](https://forums.plex.tv/uploads/short-url/7DR80aqtY7oHmEn8y1x3oHcYJeu.txt) (116.0 KB) ---
**Author:** ![FordGuy61](https://avatars.discourse-cdn.com/v4/letter/f/22d042/32.png) [@FordGuy61](https://forums.plex.tv/u/FordGuy61)\ **Post date:** [January 12, 2021, 5:57am UTC](https://forums.plex.tv/t/truehd-atmos-direct-play-truehd-7-1-transcode/677276/7 "2021-01-12T05:57:16Z")
I don’t see in the logs why the audio is transcoding. There’s some “not supported” type messages, but nothing specific such as channel limits, bandwidth limits, etc. I’m going to guess it has to do with Dolby Vision. DV support in Plex and with the Shield is still a work in progress. Sometimes the Dolby Vision decoder crashes on the Shield. When this happens the video plays in HDR. Maybe the DV decoder crashing somehow affects audio as well? Linked below is a long and still active thread regarding DV support on various platforms. You might scan it for applicable info. Note that your movie uses Dolby Vision Profile 7, and there are specific comments in the thread regarding that profile. I’m still working on picking up the ins and outs of DV support with Plex. Maybe somebody with better knowledge on the topic can provide additional info. > [@What's the status of Dolby Vision + Atmos on Plex? (re: LG WebOS, Nvidia Shield, Apple TV)](https://forums.plex.tv/t/whats-the-status-of-dolby-vision-atmos-on-plex-re-lg-webos-nvidia-shield-apple-tv/659955): > > I’ve been using Plex for many years and have a decent 1080p Blu-ray library but I’m finally buying my first 4K/HDR TV (LG CX 65") and I want to rip new 4K + HDR (Dolby Vision/HDR10) + Dolby Atmos movies. Which Plex clients can play Dolby Vision + Dolby Atmos? (LG WebOS, Nvidia Shield 2019, or Apple TV 4K) What are the differences between those three clients? Is the best (only?) format for Dolby Vision + Dolby Atmos MKV? (ie. MakeMKV 1.15.3) ---
**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\ **Post date:** [April 12, 2021, 5:57am UTC](https://forums.plex.tv/t/truehd-atmos-direct-play-truehd-7-1-transcode/677276/8 "2021-04-12T05:57:19Z")
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