DTS Not Supported

[Bash103 6]

I thought Emby supported DTS. Why is it transcoding it?  Infuse plays it without issue.

[Luke 42077]

@Bash103your screenshot is TrueHD. Apple TV devices do not support True HD natively. Does this answer your question?

[yocker 1247]

2 hours ago, Luke said:

@Bash103your screenshot is TrueHD. Apple TV devices do not support True HD natively. Does this answer your question?

Seeing as Infuse on the same device plays (passes through) TrueHD why can't Emby?

[Bash103 6]

My apologies for mislabeling the format. I'm with yocker, though. Why can't Emby "Direct Play" like Infuse?

[Bash103 6]

Wondering if there has been any followup for this one? I understand that Apple TV might not support True HD natively, but my A/V receiver does so why can't Emby pass through the audio so my receiver can produce the best audio? As is using Emby provides a substantially reduced experience.

Edited November 10, 2025 by Bash103

[Luke 42077]

7 minutes ago, Bash103 said:

Wondering if there has been any followup for this one? I understand that Apple TV might not support True HD natively, but my A/V receiver does so why can't Emby pass through the audio so my receiver can produce the best audio? As is using Emby provides a substantially reduced experience.

Hi, the Apple TV hardware does not support dts pass through.

[Bash103 6]

Then how is Infuse doing it on my Apple TV?

There is a very noticeable difference when playing the same movie through the Emby app and the Infuse app on the same AppleTV.

Edited November 10, 2025 by Bash103

[abat119 11]

I too have raised this issue in the past... from what I understand it's a licensing issue.

but yes - I'm an emby premiere subscriber and would love this feature to happen. Technically it is possible since Infuse can do it...

Eagerly waiting... 

[GrimReaper 4739]

It is more likely Infuse is internally decoding/converting it to some other format, probably PCM. If the device you're trying to bitstream audio doesn't "understand" (support) audio format, there is no trick you can make that'd cause it to passthrough it. What does your receiver display during Infuse playback? 

[Lazarus_Long 80]

Here is detailed info from Infuse:  https://support.firecore.com/hc/en-us/articles/217735707-Audio-Options-Capabilities

They don't support TrueHD (because Apple TV doesn't)

[Luke 42077]

9 hours ago, GrimReaper said:

It is more likely Infuse is internally decoding/converting it to some other format, probably PCM. If the device you're trying to bitstream audio doesn't "understand" (support) audio format, there is no trick you can make that'd cause it to passthrough it. What does your receiver display during Infuse playback? 

This is exactly what his happening. Emby will do the same, but the conversion takes place on the server.

[Bash103 6]

If they are both doing the same thing why is there such vast difference in sound quality?

Also, why does the above screenshot show Emby is transcoding the audio to AC3 instead of LPCM?

Edited November 11, 2025 by Bash103

[Luke 42077]

5 minutes ago, Bash103 said:

If they are both doing the same thing why is there such vast difference in sound quality?

Also, why does the above screenshot show Emby is transcoding the audio to AC3 instead of LPCM?

Emby transcodes unsupported audio to ac3. They are converting unsupported audio to pcm.

Quote

why is there such vast difference in sound quality?

HI there, can you please provide a specific example?

How to Report a Problem

Thanks !

 

[Bash103 6]

22 minutes ago, Luke said:

Emby transcodes unsupported audio to ac3. They are converting unsupported audio to pcm.

Thanks !

 

AC3 is a compressed format LPCM is uncompressed.

[Bash103 6]

48 minutes ago, Luke said:

Emby transcodes unsupported audio to ac3. They are converting unsupported audio to pcm.

Thanks !

 

AC3 is a compressed format LPCM is uncompressed.
 

That would explain the difference in quality. AC3 != PCM

Edited November 11, 2025 by Bash103

[abat119 11]

Yes, Infuse converts to LPCM (lossless) and does sound much better - albeit losing ATMOS in the process (worth the tradeoff imo  )

Emby team, can you please add an option server side to choose wheter to convert to AC3 or LPCM? That would be awesome if possible...

[Bash103 6]

5 hours ago, abat119 said:

Yes, Infuse converts to LPCM (lossless) and does sound much better - albeit losing ATMOS in the process (worth the tradeoff imo  )

Emby team, can you please add an option server side to choose wheter to convert to AC3 or LPCM? That would be awesome if possible...

Having the option would be great.

[Luke 42077]

7 hours ago, abat119 said:

Yes, Infuse converts to LPCM (lossless) and does sound much better - albeit losing ATMOS in the process (worth the tradeoff imo  )

Emby team, can you please add an option server side to choose wheter to convert to AC3 or LPCM? That would be awesome if possible...

Hi, the conversion to ac3 is already happening.

[Bash103 6]

1 hour ago, Luke said:

Hi, the conversion to ac3 is already happening.

So we’re stuck with the subpar (compressed) audio experience?

[Luke 42077]

2 minutes ago, Bash103 said:

So we’re stuck with the subpar (compressed) audio experience?

No, I was just responding in case others would interpret that as not having any conversion to ac3 currently available.

[Bash103 6]

21 minutes ago, Luke said:

No, I was just responding in case others would interpret that as not having any conversion to ac3 currently available.

Ok. I prefer Emby’s collections, etc, but want the uncompressed audio more. Would love to be able to ditch Infuse.