LG Emby App und DTS und TrueHD Formate

[maier64 5]

Ich spiele die oben genannten Formate über die LG App ab, der LG ist auf Passthrough für Audio eingestellt, aber auf dem Denon kommt dann nur Dolby Digital an.

Es sieht so aus das Emby diese Formate konvertiert, aber warum ist das so, der Denon kann dies, der LG muss es nicht können.

In den Einstellungen finde ich dazu nichts, hat jemand eine Idee was man machen kann oder ob ich was falsch mache.

[Luke 42077]

Hi, LG does not support TrueHD passthrough to my knowledge.

@SamES

[SamES 1056]

17 hours ago, Luke said:

Hi, LG does not support TrueHD passthrough to my knowledge.

@SamES

That's correct.  TrueHD pass-through is not supported by LG

[maier64 5]

I didn't know that, does this also go for DTS?

Thanks for let me know, so for that purpose I need a different device

[SamES 1056]

1 hour ago, maier64 said:

I didn't know that, does this also go for DTS?

Thanks for let me know, so for that purpose I need a different device

For DTS, it depends on your TV model.  If your model supports DTS then it should support pass through as well.

The issue with TrueHD is that it's a lossless HD format.  DTS doesn't have this issue. 

DTS-HD is a different format and the 'HD' component will be removed by the TV and it will passthrough just the DTS core (without the HD component).

[maier64 5]

Well, my LG Model is 86QNED86A6A Modelyear is 2025, DTS is also not passed to my Denon, it arrives as DD+

Since the TV should not decode any audio format, I do not understand why it cannot be passed through.

[Luke 42077]

2 hours ago, maier64 said:

Well, my LG Model is 86QNED86A6A Modelyear is 2025, DTS is also not passed to my Denon, it arrives as DD+

Since the TV should not decode any audio format, I do not understand why it cannot be passed through.

The Emby app and server are aware that it's not supported and therefore are having the server transcode the audio. At least that's what I think is happening. We can confirm this by looking at an example;

How to Report a Problem

 

[SamES 1056]

5 hours ago, Luke said:

The Emby app and server are aware that it's not supported and therefore are having the server transcode the audio. At least that's what I think is happening.

Yes, this is what should be happening, but we have only just added this behaviour for 2025 models so it isn't released yet.  What is probably happening is that the TV is automatically selecting the next playable track (that's not DTS), which I'm guessing is DD+/EAC3 (as we encode to DD/AC3)

[maier64 5]

14 hours ago, Luke said:

The Emby app and server are aware that it's not supported and therefore are having the server transcode the audio. At least that's what I think is happening. We can confirm this by looking at an example;

How to Report a Problem

 

Emby is aware that the TV does not support it, but since the TV is only passing this, it doesn't matter. There should be something that Emby allows to ignore that.

[Luke 42077]

8 minutes ago, maier64 said:

Emby is aware that the TV does not support it, but since the TV is only passing this, it doesn't matter. There should be something that Emby allows to ignore that.

It does actually matter. Lg tvs will not pass through audio that they don’t support.

 If you want to see for yourself you can try temporarily restricting user transcoding permissions to force it to direct play.

 Then, assuming you’ve got the truehd track selected, I can guarantee you will get no sound. Just be aware that the lg video player may automatically switch to another track, so the best way to test this is with a video file that has only a single audio track.

[maier64 5]

OK, somehow it's very strange, I wonder why LG does that.

I'm aware that this is not Embys fault.

However, this thing with the permissions (temporarily restricting user transcoding permissions to force it to direct play), where can I do that.

Since we are out of town this weekend, I'm going to try this next week.

Thank you so much for your help so far.

[seanbuff 1315]

24 minutes ago, maier64 said:

However, this thing with the permissions (temporarily restricting user transcoding permissions to force it to direct play), where can I do that.

within the Server, open your Users profile > Playback section

[maier64 5]

10 minutes ago, seanbuff said:

within the Server, open your Users profile > Playback section

Sorry, can't find this, I run Emby Server on a Synology NAS with DSM 7.1  Emby Server 4.8.11

 

Edited September 5, 2025 by maier64

[seanbuff 1315]

1 hour ago, maier64 said:

Sorry, can't find this, I run Emby Server on a Synology NAS with DSM 7.1  Emby Server 4.8.11

"Users" -> "Profile" -> "Playback"

[Luke 42077]

Just don't forget to undo it after testing or it will most likely cause playback problems.

[maier64 5]

So, finally I tested it, it is like you said, no sound when transcoding is off.

Now I tested it with a Dune HD Max 8K with Emby APP, and now it's the same thing as with LG, the playaer by itself plays everything fine and TrueHD Sound will be passed to Denon.

So far so good, but if I use the Emby App on the player, it doesn't play at all, if I deactivate transcoding for both video and audio, it plays the video but no sound, if I deactivate transcoding only for audio it also doesn't play at all.

In this case no LG is involved, Denon is capable and the Dune also of course, so why does Emby transcoding even if the player can passthrough all those formats

[Luke 42077]

What Emby app on the dune?

[maier64 5]

I was able to go to the playstore and download emby and it is working fine beside that, Dune is on android 11

 

[Luke 42077]

OK the app can pass through truehd no problem, assuming that the device can. However you might have to configure the audio settings on the device a certain way to do this.

[maier64 5]

Well, could't find anything, device is on audio passthrough, and emby as a client on that device should know that, but it seems it tells the server to transcode, very strange

[Luke 42077]

Did you explore the stats feature in the video player to learn why it was transcoding?

[maier64 5]

I have to admit I got no idea where to look

[Luke 42077]

@sh0rtydoes your Dune do True HD passthrough?

[Luke 42077]

22 minutes ago, maier64 said:

I have to admit I got no idea where to look

While playing did you try checking the on screen menus? There should be a gear with the stats function.

[maier64 5]

I check tonight