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I bought a samsung smart tv (UN50BU8000GXZD) and I can’t change the plex’s audio language. Even fixing in the settings the audio does not change, it is only in Portuguese. I have 2 other samsung tvs of different models and I can change their audio language, only this one doesn’t change. Does anyone know what can it be?
In case you didn’t find a solution yet, it could be happening due to having enabled “Allow Direct Play” in your Settings > Video.
For some reason, it forces the Direct Stream and this is causing playing your first audio track which would be the Portuguese one and you cannot change it to any other audio track.
This is happening to me on a QE65S95BATXXC from 2022 as well but, not happening on a QLED Q60 from 2020 so I can’t help but think this is caused either by Tizen 6.5 (2022) not allowing the picking of the audio track via Direct Stream to the Plex Engineers or it changed the way this is handled at the code level and we need a software fix for the Plex for Samsung app for 2022 models.
I have been trying as well pretty much every permutation on the settings for my TV just in case any Intelligent Mode or Dolby Atmos enabling or anything is messing around with this without any luck.
Additionally, I have seen other posts in this forum with a similar issue on Roku a few years back and, regarding the Plex for Samsung release notes, doesn’t look like there is any activity at all on software patches for 2022 models, something that, considering we are in 2022 September, looks pretty weird to me.
Hopefully, we will get some insight from the Plex Engineers 
This looks like the same issue as Tizen 6 devices, with audio track selection not actually working on Samsung’s APIs. I’ll put in the same fix we use for Tizen 6.
My tv runs on tizen 6 too. I can choose the audio track and it really plays the selected one. However, it transcodes the audio even if it supported. If I remux the file and place the audio stream on top of the others, it direct plays.
Hi @sLumpy. Any news on when would you be able to fit this fix into your roadmap?
A fix will be in the next release
Hi @sLumpy,
It finally got approved and released by Samsung and I was able to test it, thanks for pushing this 
.
I can safely say that now we can change audio tracks while having checked the Allow Direct Play flag in the Settings and it is changing the audio track properly.
I can see though, there might have been introduced a performance issue by this workaround. When playing a movie without changing audio or subs tracks, meaning using the first audio and subtitle tracks it is transferred in Direct Play mode the same as before releasing the workaround but, when changing the audio track, the audio (non-first audio track) gets transferred in Direct Stream and the subs are Transcoded.
I understand this is the workaround implemented and not a codec compatibility issue because I was testing different combinations of the file remixing it and it keeps happening. The test is done with an mkv file containing 1 h264 video track, 2 AC3 audio tracks and 2 SRT subtitle tracks.
The ideal would be being able to change audio tracks with Allow Direct Play enabled (already fixed in the workaround) but keep the playing mode the same for any other combination of tracks and kick transcoding only when a codec is not allowed by the device.
Do you think this would be possible?
That’s how it should work. If you change audio track, it should remux and direct stream video and audio. Does disabling subtitles work? Some logs would help too in diagnosing.
Hi, I was trying to do some testing to get meaningful info but navigating the logs is not an easy task. Hopefully, you find the following useful.
So, I was testing on 3 devices:
The XML that defines the track info of the file used in the test is:
<MediaContainer size="1" allowSync="1" identifier="com.plexapp.plugins.library" librarySectionID="5" librarySectionTitle="TV Shows" librarySectionUUID="cc882905-7762-4fc1-9393-f8a7242ff514" mediaTagPrefix="/system/bundle/media/flags/" mediaTagVersion="1661864098">
<Video ratingKey="3374" key="/library/metadata/3374" parentRatingKey="3369" grandparentRatingKey="3368" guid="plex://episode/6290e85dd0a0d01768491fdf" parentGuid="plex://season/603986ea68c8b1002d19c8cf" grandparentGuid="plex://show/5d9c09123c3f87001f35b9ca" type="episode" title="Episodio 3" grandparentKey="/library/metadata/3368" parentKey="/library/metadata/3369" librarySectionTitle="TV Shows" librarySectionID="5" librarySectionKey="/library/sections/5" grandparentTitle="Amazing Show" parentTitle="Season 1" originalTitle="Nice Title" contentRating="es/12" summary="Whatever." index="3" parentIndex="1" audienceRating="8.2" skipCount="5" lastViewedAt="1664396878" year="2022" thumb="/library/metadata/3374/thumb/1664242226" art="/library/metadata/3368/art/1663881716" parentThumb="/library/metadata/3369/thumb/1663881720" grandparentThumb="/library/metadata/3368/thumb/1663881716" grandparentArt="/library/metadata/3368/art/1663881716" duration="2417280" originallyAvailableAt="2022-09-21" addedAt="1663887714" updatedAt="1664242226" audienceRatingImage="themoviedb://image.rating">
<Media id="3686" duration="2417280" bitrate="15948" width="3840" height="2160" aspectRatio="1.78" audioChannels="6" audioCodec="eac3" videoCodec="hevc" videoResolution="4k" container="mkv" videoFrameRate="24p" videoProfile="main 10">
<Part accessible="1" exists="1" id="3686" key="/library/parts/3686/1663888399/file.mkv" duration="2417280" file="/volume1/TV Shows/Amazing Show (2022) {tmdb-999999}/Season 1/Amazing Show (2022) - s01e03.mkv" size="4819749731" container="mkv" deepAnalysisVersion="6" requiredBandwidths="25394,24675,22750,20351,18291,17537,17537,17537" videoProfile="main 10">
<Stream id="15780" streamType="1" default="1" codec="hevc" index="0" bitrate="14924" bitDepth="10" chromaLocation="left" chromaSubsampling="4:2:0" codedHeight="2160" codedWidth="3840" colorPrimaries="bt2020" colorRange="tv" colorSpace="bt2020nc" colorTrc="smpte2084" frameRate="24.000" height="2160" level="150" profile="main 10" refFrames="1" requiredBandwidths="24370,23652,21726,19327,17267,16537,16537,16537" width="3840" displayTitle="4K HDR10 (HEVC Main 10)" extendedDisplayTitle=" (4K HDR10 HEVC Main 10)"> </Stream>
<Stream id="15781" streamType="2" selected="1" codec="eac3" index="1" channels="6" bitrate="768" language="English" languageTag="en" languageCode="eng" audioChannelLayout="5.1(side)" requiredBandwidths="767,767,767,767,767,767,767,767" samplingRate="48000" displayTitle="English (EAC3 5.1)" extendedDisplayTitle=" (English EAC3 5.1)"> </Stream>
<Stream id="15782" streamType="2" default="1" codec="eac3" index="2" channels="6" bitrate="256" language="Spanish" languageTag="es" languageCode="spa" audioChannelLayout="5.1(side)" requiredBandwidths="256,256,256,256,256,256,256,256" samplingRate="48000" displayTitle="Spanish (EAC3 5.1)" extendedDisplayTitle=" (Spanish EAC3 5.1)"> </Stream>
<Stream id="15783" streamType="3" selected="1" codec="srt" index="3" bitrate="0" language="English" languageTag="en" languageCode="eng" requiredBandwidths="1,1,1,1,1,1,1,1" displayTitle="English (SRT)" extendedDisplayTitle=" (English SRT)"> </Stream>
<Stream id="15784" streamType="3" default="1" forced="1" codec="srt" index="4" language="Spanish" languageTag="es" languageCode="spa" requiredBandwidths="1,1,1,1,1,1,1,1" displayTitle="Spanish Forced (SRT)" extendedDisplayTitle=" (Spanish Forced SRT)"> </Stream>
<Stream id="15785" streamType="3" codec="srt" index="5" bitrate="0" language="Spanish" languageTag="es" languageCode="spa" requiredBandwidths="1,1,1,1,1,1,1,1" displayTitle="Spanish (SRT)" extendedDisplayTitle=" (Spanish SRT)"> </Stream>
</Part>
</Media>
<Marker id="2078" type="intro" startTimeOffset="68585" endTimeOffset="97892">
<Attributes id="2078"/>
</Marker>
<Extras size="0"> </Extras>
<Related> </Related>
</Video>
</MediaContainer>
In summary:
A couple of facts:
I started all the tests by playing the audio track 1 (ENG) and switching to audio track 2 (SPA) while playing what seems to be the problem to me given the shift from Direct Play to Direct Stream (only in Device 1, the one about the latest fix released)
These are the Dashboard screenshots on the current playing:
Device 1 (Samsung Tizen 2022) The one with the issue:
First play (first audio track):
Changed language while playing (second audio track):
Interesting facts that could lead to finding the issue:
Device 2 (Samsung Tizen 5) Works perfectly:
First play (first audio track):
Changed language while playing (second audio track):
Device 3 (Windows Laptop) Works perfectly:
First play (first audio track):
Changed language while playing (second audio track):
Regarding the logs, couldn’t find much that seemed meaningful to me, just two details:
/transcode endpoints even considering the 2019 one behaves as expected and the new one, 2022, it changes the playing mode which should not happen.Given that the 2019 TV model with Plex for Samsung always uses Direct Play and to be honest, always worked like a charm, makes me think we sorted the audio track change issue but the app for Tizen 6.5 (2022) is still not behaving as it should.
I hope you can find this useful for debugging purposes and thanks again for the support @sLumpy 
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