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Emby Theater - no sound


zsoltsuhajda

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MBSki

I can play 4k videos just fine with Plex and it uses the same windows player without the HEVC extension. It must be something else. Seems to me that it's trying to transcode even though it doesn't need to. If I could force it to direct play it would be fine, but something is telling it to transcode instead. I know the audio needs to transcode, but if the audio is a separate transcode stream it shouldn't force a video transcode. But, if there is no separation then the audio will always force the transcode. Which brings it back to the beginning...is there a way to separate the audio and video transcodes and allow me to force direct stream ONLY for the video?

 

If there's something else in the logs that provide a clue let me know. There's got to be a way to play 4k.

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MBSki

With AC3 5.1 I don't get any sound and that's with both 1080p and 4k video. Are you trying to pinpoint the exact codec that's causing the issue? If so, True HD on the 4k video appears to do the most damage as it forces the transcode. Either way the triggers for transcode or not transcode appear to be off. 

 

So why can't Emby just split the transcode functions in the xbox client app so the user can decide whether or not it transcodes?

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MBSki

The same way that i had it configured for Plex. HDMI from Xbox to Denon receiver. Xbox configured with bitstream out to Dolby Digital. It works on Plex, why would it be my setup that's the issue? 

 

Besides, like i mentioned earlier, Emby is transcoding the 4k video when it doesn't need to. Is anyone looking at the Emby configuration and why it's transcoding the video when it shouldn't? And how about splitting the audio and video transcode, and allow the user to force transcode or force direct play? That would solve my problem too, why aren't we looking at that as a solutioon?

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MBSki

Yea, that would definitely help. I was able to get one AC3 audio track working. There appear to be 2 AC3 5.1 tracks for spider-man far from home. At least based on the stats for nerds there's 2 AC3 tracks. And i verified in VLC as well. Not sure why one AC3 track works and the other doesn't. That seems a bit odd. I also tried just about every combination i could think of in terms of audio track (True HD and AC3), Denon receiver output (Dolby Digital, Dolby Digital + Neural X, etc.), and Xbox One output (bitstream out with DTS, no bitstream out, etc.). The different options didn't seem to matter much except that the True HD audio track forced transcoding, and 1 of the AC3 tracks played with video direct streaming no matter what option was used on Xbox or Denon receiver.

 

So, it brings me back to, there's something strange with how Emby is deciding transcoding or not. Ideally, the audio and video transcodes need to be split with user control to force transcode or force direct stream/play. 

 

Really appreciate your help on this.

 

Luke or ebr, is there any way to split the the audio and video transcodes and allow the user to force transcode or force direct stream/play? I think that would help, but I'm obviously new to Emby. Just trying to get my 4k videos to play without too much tinkering.  :D 

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Guest asrequested

For the one that works and the one that doesn't, can you post screenshots of media info? If you scroll down on the info page, you should see it.

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Guest asrequested

Oh, I though they they were different files. My mistake. So one works and the other doesn't? Is it only with this video, or all 4k HDR stuff?

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MBSki

All 4k HDR videos. I tried about 5 differen movies and got the same result. If it's True HD, it tries to transcode and the video is garbled. if it's Dolby Digital, and only 1 DD audio track there's no sound. If there are 2 DD audio tracks then the 2nd one will play with sound. Deadpool 2 is identical to spider-man far from home where the 2nd DD audio track plays fine. it's still choppy at first, but once the buffer fills it seems to do ok. 

 

Am I really the only user experiencing these issues? Seems like there's got to be other's with the same problem. Do you have an Xbox One that you can test on?

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Guest asrequested

Sorry, no I don't have an Xbox, but it uses the same player as the store app. Which, to my amazement, plays correctly. HDR render, too. 

 

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MBSki

Yea, Microsoft seems to limit things a bit on the Xbox. Can you pass this on to the devs? Seems we're stuck until they can take a closer look at what's going on.

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Guest asrequested

I'm sure Luke is tracking this. There are plans to use the same player in the desktop app, in the store app. When that happens, most of these issues will be resolved.

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MBSki

Luke, any chance you have a solution for this? As an alternative I'm considering getting a beefier GPU (NVidia Quadro RTX 4000), but would really rather not drop that kind of cash if this can be fixed through a server or Emby Theatre on Xbox One app update. Plus, I'm not even sure the transcoding would work properly and keep HDR if using a Quadro. Ideally I could force the audio transcode, and force the video to direct play. Not sure how big a lift that would be to make though, and if you think it would work. Any solutions to throw at this problem before I go out and buy a Quadro?  :D 

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Guest asrequested

Don't do that, it has nothing to do with the issue. The only workaround is to play an audio track the Xbox supports. Basic AC3 or AAC, most likely.

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MBSki

Don't do that, it has nothing to do with the issue.

 

But it's trying to transcode. Why not just let it transcode? Are you saying it won't transcode correctly anyways (i.e. HDR gets stripped), even if my hardware could handle it?

 

 

The only workaround is to play an audio track the Xbox supports. Basic AC3 or AAC, most likely.

 

I suppose, but that's not an option for all of my movies, and I'm not going to go through and reduce the quality of my audio tracks just to get it to play on Emby. So my workaround for now is Plex. Trying to get away from Plex though and this is my 1 remaining issue. There are a few minor nitpicks with Emby here and there compared to Plex, but I can live with those. This on the other hand is a definite must have. Really need an Emby server or app patch/update, and short of that the only workaround to keep the best quality audio is to let it transcode.

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MBSki

Well, if you want a full transcode and lose the HDR, then you'll need hardware to support that.

 

I think the Quadro RTX 4000 would handle it, but are you certain I'll lose the HDR if it transcodes? If that's the case, then I'm stuck and only option is an Emby Server/app update. 

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Guest asrequested

Yup, right now there is no tone mapping when transcoding. If you're willing to spend that kind money, why not just buy a Shield? It's much cheaper and will do what you want. It's small, too.

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MBSki

Yup, right now there is no tone mapping when transcoding. If you're willing to spend that kind money, why not just buy a Shield? It's much cheaper and will do what you want. It's small, too.

 

Dang it, ok, then I'm stuck. Probably good because that Quadro is pricey!

 

Considered the shield, but I prefer to stick with just one device. Easier to switch to a different app (i.e. Plex) within Xbox then it is to switch devices.  

 

Which leaves me with...Luke, help!  :D 

Edited by mbarylski
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We are using the stock windows video player in the app and it does have some limitations. We are working on replacing it with something better but it will take a little time. Thanks.

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