[clarkss12]

Related to your first question, it's because I went back and forth a lot to find an all-black frame (to avoid any copyright issues).

The lip-sync issue is not necessarily connected to dropped or skipped frames, at least in my case.

Even with zero frame drops, I've always experienced a misalignment between the lip movement and the sound.

The mediainfo of the file says the following:

View Spoiler

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings                          : CABAC / 4 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 4 frames
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 41 min 38 s
Bit rate mode                            : Constant
Bit rate                                 : 10 000 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.201
Stream size                              : 2.79 GiB (76%)
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio #2
ID                                       : 3
Format                                   : E-AC-3
Format/Info                              : Enhanced AC-3
Commercial name                          : Dolby Digital Plus
Codec ID                                 : A_EAC3
Duration                                 : 41 min 38 s
Bit rate mode                            : Constant
Bit rate                                 : 640 kb/s
Channel(s)                               : 6 channels
Channel layout                           : L R C LFE Ls Rs
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Stream size                              : 191 MiB (5%)
Language                                 : English
Service kind                             : Complete Main
Default                                  : Yes
Forced                                   : No

In any case, I don't understand what is causing the audio to be out of sync.

That's why I'm curious to know if it also happens on the box Vero V.

I have been checking some of my BlueRay media and I can match the video codec, but can't find one with DD+.  Your mediainfo shows Audio #2, what is your audio #1?  I am trying to find a video that matches your video so I can compare apples to apples.

The Audio #1 because it was from another language, it's the same codec and bitrate as the Audio #2 one so I removed it to shorten the mediainfo and make it more readable.

As the @izprtxqkft says, it is not so easy to be E-AC3 in BluRays however there are some discs that contain AC3/E-AC3 audio as secondary or of a non-original language, not always.

Thanks @izprtxqkft for sharing the link for samples.

Among the trailers, I found one that may suit our case for testing. I can't find a trailer with E-AC3 but I found one with AC3 that may work as a test.

Trailer 1 1920×804 AVC YUV420 8 bit DTS-HD Master Audio 5.1, AC3 5.1 MKV
Download: https://we.tl/t-yXTa8n0hrw
source: https://thedigitaltheater.com/argylle-2024/

I tested it on Ugoos AM6B Plus with CoreELEC-NG and it is out of sync between about 75-100 ms.

PS: If you download that link, remember to select AC3 audio instead of DTS-HD MA.

That back ground sound is sooooo loud I had to turn my AVR wayyyyy down.  Hard to test that video, but the only part of that video was at the end when Samuel L. Jackson spoke and it "appeared" to be in sync.  ONLY tested on the OSMC Vero V.  I doubt if the V will do any better.  I did NOT compare on any of my other media playes.

[xthe_punisherx]

I have been checking some of my BlueRay media and I can match the video codec, but can't find one with DD+.  Your mediainfo shows Audio #2, what is your audio #1?  I am trying to find a video that matches your video so I can compare apples to apples.

The Audio #1 because it was from another language, it's the same codec and bitrate as the Audio #2 one so I removed it to shorten the mediainfo and make it more readable.

As the @izprtxqkft says, it is not so easy to be E-AC3 in BluRays however there are some discs that contain AC3/E-AC3 audio as secondary or of a non-original language, not always.

Thanks @izprtxqkft for sharing the link for samples.

Among the trailers, I found one that may suit our case for testing. I can't find a trailer with E-AC3 but I found one with AC3 that may work as a test.

Trailer 1 1920×804 AVC YUV420 8 bit DTS-HD Master Audio 5.1, AC3 5.1 MKV
Download: https://we.tl/t-yXTa8n0hrw
source: https://thedigitaltheater.com/argylle-2024/

I tested it on Ugoos AM6B Plus with CoreELEC-NG and it is out of sync between about 75-100 ms.

PS: If you download that link, remember to select AC3 audio instead of DTS-HD MA.

That back ground sound is sooooo loud I had to turn my AVR wayyyyy down.  Hard to test that video, but the only part of that video was at the end when Samuel L. Jackson spoke and it "appeared" to be in sync.  ONLY tested on the OSMC Vero V.  I doubt if the V will do any better.  I did NOT compare on any of my other media playes.

If you don't mind, could you show the debug player?

The one I sent a screenshot\photo of in a previous post, for example: https://postimg.cc/8fGLPwh8, to understand how the Vero V handles the sync of audio and video.

I would really appreciate it. 

[clarkss12]

The Audio #1 because it was from another language, it's the same codec and bitrate as the Audio #2 one so I removed it to shorten the mediainfo and make it more readable.

As the @izprtxqkft says, it is not so easy to be E-AC3 in BluRays however there are some discs that contain AC3/E-AC3 audio as secondary or of a non-original language, not always.

Thanks @izprtxqkft for sharing the link for samples.

Among the trailers, I found one that may suit our case for testing. I can't find a trailer with E-AC3 but I found one with AC3 that may work as a test.

Trailer 1 1920×804 AVC YUV420 8 bit DTS-HD Master Audio 5.1, AC3 5.1 MKV
Download: https://we.tl/t-yXTa8n0hrw
source: https://thedigitaltheater.com/argylle-2024/

I tested it on Ugoos AM6B Plus with CoreELEC-NG and it is out of sync between about 75-100 ms.

PS: If you download that link, remember to select AC3 audio instead of DTS-HD MA.

That back ground sound is sooooo loud I had to turn my AVR wayyyyy down.  Hard to test that video, but the only part of that video was at the end when Samuel L. Jackson spoke and it "appeared" to be in sync.  ONLY tested on the OSMC Vero V.  I doubt if the V will do any better.  I did NOT compare on any of my other media playes.

If you don't mind, could you show the debug player?

The one I sent a screenshot\photo of in a previous post, for example: https://postimg.cc/8fGLPwh8, to understand how the Vero V handles the sync of audio and video.

I would really appreciate it. 

https://imgur.com/QODt7du
https://imgur.com/K50qEMq
No dropped frames and the skipped frame when starting is normal.  Me thinks you have an issue with your feed.  Also, that is the loudest video I have ever played.
https://imgur.com/2NBCS95

[xthe_punisherx]

That back ground sound is sooooo loud I had to turn my AVR wayyyyy down.  Hard to test that video, but the only part of that video was at the end when Samuel L. Jackson spoke and it "appeared" to be in sync.  ONLY tested on the OSMC Vero V.  I doubt if the V will do any better.  I did NOT compare on any of my other media playes.

If you don't mind, could you show the debug player?

The one I sent a screenshot\photo of in a previous post, for example: https://postimg.cc/8fGLPwh8, to understand how the Vero V handles the sync of audio and video.

I would really appreciate it. 

https://imgur.com/QODt7du
https://imgur.com/K50qEMq
No dropped frames and the skipped frame when starting is normal.  Me thinks you have an issue with your feed.  Also, that is the loudest video I have ever played.
https://imgur.com/2NBCS95

Thank you for sharing.

Sorry for the test, I couldn't find a fair video to test, this one I indicated you to was the only one where there is more dialogue, the rest of the trailers you could hear the third person's voice or there was only music and you hear two dictated words. 

At the moment I can't send you a PM since I am "newbie" here, could you PM me?

Anyway, thank you!

[signde]

Hi clarkss12, since you have the True V box, I wanted to ask you if there is the problem of Dolby audio (AC3 and E-AC3 make audio out of sync, but TrueHD works properly) out of sync about 100-175 ms compared to video on CoreELEC/Kodi system?

The devices that have this problem are as follows:

• Ugoos AM6B Plus under CoreELEC-NG with DV FEL
  
• Nvidia Shield TV PRO 2019 under Kodi Omega 21.1
  
• Homatics Box R 4K Plus under CoreELEC-NG
  

My current Audio Passthrough settings on Kodi is:
 

Dolby Digital (AC3) capable receiver - On
  - Enable Dolby Digital (AC3) transcoding - Off
Dolby Digital Plus (E-AC3) capable receiver - On
TrueHD capable receiver - On
DTS capable receiver - Off
DTS-HD capable receiver - Off

They have the problem of Dolby Digital and Dolby Digital Plus (AC3 and E-AC3) audio doing out of sync about 125-200 ms compared to video but all this happens when AC3 and E-AC3 capable receiver is enabled, that means passing audio without conversion on Kodi/CoreELEC. When I tried to disable AC3 and E-AC3 capable receiver, that means the output of PCM audio which solves the out-of-sync audio problems.
TrueHD works properly with TrueHD capable receiver enabled.

I attach the screenshot with AC3 and E-AC3 capable receiver enabled where you can see the audio out of sync late compared to the video:
https://postimg.cc/8fGLPwh8

And AC3 and E-AC3 capable receiver disabled, that seems ok:
https://postimg.cc/8sGyCbkP

I did not understand why. I don't know if it is a problem with the devices or it is simply a bug in Kodi.
My TV is LG C2, that supports all Dolby audio codecs.

That said, I would be curious to know is the same out-of-sync audio problem there for Vero V on OSMC.

Thank you

I either own or have owned all three of the boxes you mentioned. None of them has ever given me audio sync issues with AC3 or E-AC3 content in passthrough under Kodi / CoreElec v21.

I have an LG G3 but my devices are always connected to the AVR rather than the TV directly.

Do you have an AVR? If so is the AVR reporting an LPCM signal or DD/DD+ signal? As in is the LG doing passthrough or is it decoding to LPCM? Have you tried connecting directly to the AVR rather than the TV?

No, I don't have an AVR. 

If I set AC3/E-AC3 in passthrough on CoreELEC/Kodi, the LG TV is reporting a Dolby Audio signal. If instead AC3/E-AC3 in LPCM, the LG TV reporting a PCM signal.

Do you think it's a TV problem? Would the AVR handle audio better?

It's hard for me to speculate. On one hand I want to tell you it is not a Kodi problem because every one of those devices have worked perfectly for me in terms of audio sync with those formats. On the other hand, my experience is with those devices connected to my AVR rather than the TV so that is a big variable but I can assure you it works fine for me. I watch tons of content in E-AC3 via Kodi, I would absolutely notice.

Even if I were to try a device connected directly to the TV to see what happens, my G3 is a generation newer than the C2 so I don't think that would be a valid test. 

It could be a webOS/C2 quirk. In your setup your TV is having to decode the DD / DD+ audio when you don't send it LPCM.

[xthe_punisherx]

My LG C2 TV is set to decode in DD and DD+, meaning it uses bitstream instead of PCM.
In the advanced audio settings,I enabled Bypass in the audio and video sync settings to correct the audio-video synchronization issue, which is partially resolved.

So, I suspect it might be a problem with the TV; perhaps it takes a bit longer to process the Dolby Audio.

With the AVR, its handling of audio and video is far superior to that of the TV, which allows for optimal audio and video performance without any issues.

Therefore, it's not really a problem with Kodi.

Finally... guys, I appreciate your support, and happy holidays!

[User 491714]

Do S905X4-K boxes (Homatics Box R Plus / Dune HD R Plus / Rocktek G2 / Nokia 8010) with CoreELEC support CMv4.0 TV-Led Dolby Vision? Or do they only support Player-Led DV?

Same question with the Dune HD Pro Vision 4K (S905X4-J). I also want to know if this TV Box supports the VS10 Engine in CoreELEC

thanks

[Sholander]

Yes; for more info refer to https://discourse.coreelec.org/
Player-Led vs TV-Led depend also on TV/Display capabilities; not all TVs support TV-Led CMv4.0...

[hdmkv]

This closed thread may be helpful, and also see CPM's GitHub here.

[XGames]

Hi,
Feel like helping? I just bought a firestick and trying to add Kodi to it, but it won’t let me sign in on Google play b/c says I already am signed in on my regular mat box.
Can’t seem to sign in on any of the other options either.
Thoughts?

[izprtxqkft]

I just bought a firestick and trying to add Kodi to it, but it won’t let me sign in on Google play b/c says I already am signed in on my regular mat box.

1. firesticks don't have google play store, they have amazon store
2. kodi doesn't use google play
3. this isn't a support thread, android support is here https://forum.kodi.tv/forumdisplay.php?fid=164

assess your issue and if it has to do with kodi post in the android section for help, if it does not concern kodi then amazon support will be your best avenue

[hdmkv]

I just bought a firestick and trying to add Kodi to it, but it won’t let me sign in on Google play b/c says I already am signed in on my regular mat box.

Guide here.

[ontap]

Just curious , so do you have seperate tv remote controls for each box ?

[hdmkv]

Those cheap BT (and in some cases BT + IR combi) remotes are easy to hold/use & handy for Kodi w/volume control for AVR. I also use SofaBaton X1S as my primary universal remote.

[Roby77]

we are in 2025 and no news about s928 or s905x5  box with wideveline L1 ?

For people like me that wants an unique box for stream and local playback homatics 4k plus is the unique product ?

I have it with atv14 but i would like to purchase something with better software development in the future