This article is old but choke full of good basis info regarding HD Audio bit streaming:
https://www.missingremote.com/guide/bitstreaming-hdmi-hd-audio-formats-your-htpc
I helped another fellow Plex user last night with the same issue but with an AMD based system,:
You can read the Intel GPU section for Kodi which works the same for PMP:
http://kodi.wiki/view/windows_audio
Did you get this resolved?
Thanks for the help with this. I will try the driver package. This all worked fine before though with no hardware changes on my part since.
@cameron said:
Thanks for the help with this. I will try the driver package. This all worked fine before though with no hardware changes on my part since.
But you are on Windows 10 no? Windows 10 updates are automatic. In their infinite wisdom, they know whats best for you. I deal with this nonsense everyday at work. We are in the process of moving many Windows PCs that control multimillion dollar industrial equipment back to 8.1 or lower to avoid breaking production of goods.
The default behavior of forcing new drivers are also part of this new wicked practice by Microsoft under 10. For an appliance like HTPC I have abandoned Windows.
I had a similar problem with my Intel NUC6i5SYH running Win10 Pro Anniversary Update. Turned out MS had “updated” the Intel drivers I had downloaded for the my NUC6i5SYH, with the MS generic Intel drivers. 
I configured a local group policy so that drivers aren’t included in MS auto-updates. Then I uninstalled the drivers MS had auto-updated and then reinstalled the ones from Intel. Haven’t had any driver updates from MS since.
I am having this issue suddenly with my library. Noticed a couple of titles I knew to be dts Master Audio capable, only displaying dts digital surround capable in Plex. Newly transcoded files I know to be dts MA also now show up in Plex as dts digital surround instead. When I told Plex to re-analyze the entire library, it started going through each title, alphabetically, changing every dts MA audio title to dts digital surround in the description below the poster art. So I jumped ahead to catch the transition as it happened. I have 2 screen shots showing the before and after of Apocalypse Now.
I’m on Mac OS X (10.11.6), Mac Pro 8,1, 8 Core, 10Gb Ram.
I am having the same issue as well. I just ripped some new blurays today and all of the DTS-HD titles show up as " English (DTS 5.1)" and show DCA as the codec on the info screen with a profile of “ma”. Now maybe this has how its always been however I feel it used to show the proper DTS-HD logo and not a generic “DTS Digital Surround” logo. I did a in-place upgrade of Windows 10 a week or so ago when I installed my new Motherboard and CPU and installed the latest drivers available for the chipset. Maybe this has no affect on the outcome of playing a file on the shield (this pc is ONLY used for a Plex server) but I would think it should show the proper information irregardless on the movies info page.
PMS Version 1.4.0.3224
Windows 10 64bit
i7-7700K CPU
Z270 platform motherboard
32GB ram
Latest drivers and updates have been installed, refreshing the item in the library doesn’t resolve the issue. Anyone else have luck resolving this?
@codeecb said:
I am having the same issue as well. I just ripped some new blurays today and all of the DTS-HD titles show up as " English (DTS 5.1)" and show DCA as the codec on the info screen with a profile of “ma”. Now maybe this has how its always been however I feel it used to show the proper DTS-HD logo and not a generic “DTS Digital Surround” logo. I did a in-place upgrade of Windows 10 a week or so ago when I installed my new Motherboard and CPU and installed the latest drivers available for the chipset. Maybe this has no affect on the outcome of playing a file on the shield (this pc is ONLY used for a Plex server) but I would think it should show the proper information irregardless on the movies info page.PMS Version 1.4.0.3224
Windows 10 64bit
i7-7700K CPU
Z270 platform motherboard
32GB ramLatest drivers and updates have been installed, refreshing the item in the library doesn’t resolve the issue. Anyone else have luck resolving this?
If you take note of the thread title–1.4.0.3224 is a preview build focused on HW transcoding. Try going back to the public release. You will see it displayed again.
Hey folks,
We made a decision to only display the short name “DTS” because this is the exact string contained in the video file headers. Your files are unchanged from before. This is just a change in the way we display on the pre-play page. Sorry for the confusion.
Greg
@Gregflix said:
Hey folks,We made a decision to only display the short name “DTS” because this is the exact string contained in the video file headers. Your files are unchanged from before. This is just a change in the way we display on the pre-play page. Sorry for the confusion.
Greg
Understood. As this is not currently the case with Dolby–will Plex be taking the same approach with Dolby?
@lqvnguyen said:
@codeecb said:
I am having the same issue as well. I just ripped some new blurays today and all of the DTS-HD titles show up as " English (DTS 5.1)" and show DCA as the codec on the info screen with a profile of “ma”. Now maybe this has how its always been however I feel it used to show the proper DTS-HD logo and not a generic “DTS Digital Surround” logo. I did a in-place upgrade of Windows 10 a week or so ago when I installed my new Motherboard and CPU and installed the latest drivers available for the chipset. Maybe this has no affect on the outcome of playing a file on the shield (this pc is ONLY used for a Plex server) but I would think it should show the proper information irregardless on the movies info page.PMS Version 1.4.0.3224
Windows 10 64bit
i7-7700K CPU
Z270 platform motherboard
32GB ramLatest drivers and updates have been installed, refreshing the item in the library doesn’t resolve the issue. Anyone else have luck resolving this?
If you take note of the thread title–1.4.0.3224 is a preview build focused on HW transcoding. Try going back to the public release. You will see it displayed again.
I was under the impression, apparently incorrectly that the only difference was the inclusion of hardware transcoding. That being said it’s much easier to pull out my app or load the web UI instead of manually pulling up the file and using Media info to see the audio type.
Instead of labeling gas as e10, e15, e30, e85, diesel, propane etc why not just call them gas? Because well yes they are in fact a gas we also have the ability to tell what kind of gas they are so why not display the info which is already known?
@codeecb said:
@lqvnguyen said:
@codeecb said:
I am having the same issue as well. I just ripped some new blurays today and all of the DTS-HD titles show up as " English (DTS 5.1)" and show DCA as the codec on the info screen with a profile of “ma”. Now maybe this has how its always been however I feel it used to show the proper DTS-HD logo and not a generic “DTS Digital Surround” logo. I did a in-place upgrade of Windows 10 a week or so ago when I installed my new Motherboard and CPU and installed the latest drivers available for the chipset. Maybe this has no affect on the outcome of playing a file on the shield (this pc is ONLY used for a Plex server) but I would think it should show the proper information irregardless on the movies info page.PMS Version 1.4.0.3224
Windows 10 64bit
i7-7700K CPU
Z270 platform motherboard
32GB ramLatest drivers and updates have been installed, refreshing the item in the library doesn’t resolve the issue. Anyone else have luck resolving this?
If you take note of the thread title–1.4.0.3224 is a preview build focused on HW transcoding. Try going back to the public release. You will see it displayed again.I was under the impression, apparently incorrectly that the only difference was the inclusion of hardware transcoding. That being said it’s much easier to pull out my app or load the web UI instead of manually pulling up the file and using Media info to see the audio type.
Instead of labeling gas as e10, e15, e30, e85, diesel, propane etc why not just call them gas? Because well yes they are in fact a gas we also have the ability to tell what kind of gas they are so why not display the info which is already known?
I thought this might have been a bug or something with the 1.4 HW transcoding preview build. However, as Greg from Plex stated, this is a decision Plex has made. Please don’t shoot the messenger.
@Gregflix said:
Hey folks,We made a decision to only display the short name “DTS” because this is the exact string contained in the video file headers. Your files are unchanged from before. This is just a change in the way we display on the pre-play page. Sorry for the confusion.
Greg
@Gregflix said:
Hey folks,We made a decision to only display the short name “DTS” because this is the exact string contained in the video file headers. Your files are unchanged from before. This is just a change in the way we display on the pre-play page. Sorry for the confusion.
Greg
This irks me. Not a fan myself.
@Gregflix said:
Hey folks,We made a decision to only display the short name “DTS” because this is the exact string contained in the video file headers. Your files are unchanged from before. This is just a change in the way we display on the pre-play page. Sorry for the confusion.
Greg
Hi Greg,
This is a terrible, terrible decision. Please revert back to clearly distinguishing lossless DTS-HD MA from lossy DTS, just as you distinguish Dolby Digital, Dolby Digital Plus and Dolby TrueHD.
These are all noticeably different codecs, it makes absolutely no sense to lump DTS and DTS-HD MA under the same name of “DTS Digital Surround”. If this makes sense to you, then you should also be lumping all three of those different Dolby Codecs under the one name of “Dolby”.
Restoring Plex’s existing functionality would require no new work on your behalf as it’s already been done and was working perfectly.
In fact I would request that you add the ability to detect and differentiate Dolby Atmos and DTS:X codecs.
@stefcolosi said:
@Gregflix said:
Hey folks,We made a decision to only display the short name “DTS” because this is the exact string contained in the video file headers. Your files are unchanged from before. This is just a change in the way we display on the pre-play page. Sorry for the confusion.
Greg
Hi Greg,
This is a terrible, terrible decision. Please revert back to clearly distinguishing lossless DTS-HD MA from lossy DTS, just as you distinguish Dolby Digital, Dolby Digital Plus and Dolby TrueHD.
These are all noticeably different codecs, it makes absolutely no sense to lump DTS and DTS-HD MA under the same name of “DTS Digital Surround”. If this makes sense to you, then you should also be lumping all three of those different Dolby Codecs under the one name of “Dolby”.
Restoring Plex’s existing functionality would require no new work on your behalf as it’s already been done and was working perfectly.
In fact I would request that you add the ability to detect and differentiate Dolby Atmos and DTS:X codecs.
This makes perfect sense and I literally have no clue why they have done this. It’s moronic. I don’t call Pepsi Coke. I call it Pepsi, just because they are both colas doesn’t mean they are the same. I’m not happy either. Second the request for more logos. Not less.
EDIT: Found a way to fix it with 1.4.0, doesn’t seem to work with 1.3.4. Uninstall Plex. Install a older version of Plex Media Server, rip the dca-ma.png out of C:\Program Files (x86)\Plex\Plex Media Server\Resources\Plug-ins-7d2c839\Media-Flags.bundle\Contents\Resources\Audio Codec
Save it somewhere.
Uninstall old PMS.
Reinstall new version.
Replace dca-ma.png in same folder with old logo. Update library / re-analyze = profit.
Ridiculous I even had to do that. Now they just need to change the
“AUDIO English (DTS 7.1)” field in Plex Web to
"AUDIO English (DTS-HD MA 7.1) or the equivalent full codec name
and I will be happy. Doubt that will happen though. 
@danjames92 said:
EDIT: Found a way to fix it with 1.4.0, doesn’t seem to work with 1.3.4. Uninstall Plex. Install a older version of Plex Media Server, rip the dca-ma.png out of C:\Program Files (x86)\Plex\Plex Media Server\Resources\Plug-ins-7d2c839\Media-Flags.bundle\Contents\Resources\Audio Codec
Save it somewhere.
Uninstall old PMS.
Reinstall new version.
Replace dca-ma.png in same folder with old logo. Update library / re-analyze = profit.
This doesn’t work for me, the plex web client always loads the dts logo instead of the dca-ma.png i replaced.
@Gregflix please bring the DTS-HD picture back… i wood like to see when my Movies are with HD-Audio in there…
