I tried my stocking and async movie “Significant Other” and it was fine.
I tried two other new video, also fine.
Now I played Civil War (in German) and Black Hawk Down (in English) with True HD Atmos.
I was running the movies without stopping from begin to end.
All films played perfectly without going out of sync and without losing frames.
But if I do use pause or start and stop a movie, there can be do lost a frame.
10.22 is in beta now if others want to give it a go through the play store.
I’m sorry to report that I enabled betas, and installed Plex v10.22.0.1536 (f4d056a4). This appears to be a later version than the one reported a few posts above.
I tested in both The Martian (“I’m going to have to science the s–t out of this. . .”) and the opening to The Empire Strikes Back. Both continue to exhibit the issue (audio dropout, followed by loss of sync and fidelity).
I’m a bit crestfallen. Hopefully this is not the fix that sixones mentioned was on the way. Rather, we got our hopes up based on posts in another thread where some video dropped frames were fixed.
I had similar result in Hellboy, audio sync issue for this thread is still unresolved.
I tried my version from The Martian with english DTS HD MA 7.1 and German PGS Subs.
I played two times, because I become one lost frame in the first time, but I think it wasn’t async. Second time I was restart my Shield and try it again, now I got the complete Movie without a dropped frame. Next I will try The Empire strikes back.
Hi City-Cobra,
You’ve repeatedly mentioned dropped frames. Are you actually listening to the playback? Throughout this thread, we’ve listed scenes where the audio drops out and/or exhibits this issue. Dropped audio need not exhibit a dropped video frame, correct?
If you are merely beginning the playback of a movie and then returning later to check whether it has dropped a video frame, you may be missing the issue described in this thread.
–H
You will not notice the problem with a DTS HD audio track.
Ok, I got the same problem in The Empire strikes back. approximately at frame 3500 I lost the English True HD Atmos 7.1 Sound, I have to do FF or RW and the sound come back.
If I rewind the movie and get to the same place, the sound is lost again.
That’s really another problem, no frame drop but sound go lost.
I have another version from this movie, also with english True HD Atmos 7.1, and the problem doesn’t exist.
Could it perhaps be a problem with MakeMKV that occurs when creating the MKV file?
I will hope @sixones that he will fix it, but I would suspect a Bluray extraction problem.
Hi City-Cobra,
With respect, you seem to have assumed that this issue was (or might have been) fixed because another issue with dropped video frames was fixed as well.
Questions about faulty blu-ray extractions have come up repeatedly throughout this thread and the overall finding has been that there is nothing wrong with the extraction but that many players (both hardware and software-based) have had to be modified to accommodate seamless branching and TrueHD/Atmos streams.
Throughout the thread, many have posted timestamps from seamlessly branched blu-rays where the issue can be reproduced. I’m not sure how productive it is to post about other copies that don’t exhibit the issue. We don’t know where those came from. . . nor their provenance.
This is not a video issue. And I worry that a fixation on dropped video frames as well as your overall testing methodology (including testing DTS streams, etc.) is only resulting in confusion and the muddying the proverbial waters.
There is no indication that this issue has been fixed. No prior examples have been shown to be fixed. So I’m not sure why we’re now revisiting whether our blu-ray rips are good.
Was just going back on this thread reading a few replies and noticed this post about The Abyss 4K…
…then I thought, hold on… I have that disc now since this post (got and ripped on May 31) and I have watched it on PLEX/Shield and I don’t remember any problems at all with audio on that when I watched it… I’m sure I would have noticed dropouts and audio out of sync like other movies. I’m going to have to go back and check this… can you remember where exactly you were having audio dropouts in this movie? (I don’t really want to have to sit through 2h 51m again to find any)… and it’s definitely the Extended Edition with TrueHD Atmos track (unless it played the 5.1 track unknown to me)
General
Complete name : E:\Media 2\Video\MKVs\Bluray\Movie\Individual\THE ABYSS extended\The Abyss (1989) {edition-EXTENDED}.mkv
Format : Matroska
Format version : Version 2
File size : 57.2 GiB
Duration : 2 h 51 min
Overall bit rate mode : Variable
Overall bit rate : 47.9 Mb/s
Movie name : THE ABYSS
Encoded date : UTC 2024-05-31 15:57:33
Writing application : MakeMKV v1.17.6 win(x64-release)
Writing library : libmakemkv v1.17.6 (1.3.10/1.5.2) win(x64-release)
Cover : Yes
Attachments : cover.jpg
Video
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Codec ID : V_MPEGH/ISO/HEVC
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Height : 2 160 pixels
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Stream size : 51.5 GiB (90%)
Language : English
Default : No
Forced : No
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : BT.2020
Mastering display luminance : min: 0.0001 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 800 cd/m2
Maximum Frame-Average Light Level : 44 cd/m2
Original source medium : Blu-ray
Audio #1
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ID in the original source medium : 4352 (0x1100)
Format : MLP FBA 16-ch
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Codec ID : A_TRUEHD
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Frame rate : 1 200.000 FPS (40 SPF)
Bit depth : 24 bits
Compression mode : Lossless
Stream size : 4.92 GiB (9%)
Title : Surround 7.1
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Default : Yes
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Original source medium : Blu-ray
Number of dynamic objects : 13
Bed channel count : 1 channel
Bed channel configuration : LFE
Audio #2
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ID in the original source medium : 4352 (0x1100)
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Compression mode : Lossy
Stream size : 783 MiB (1%)
Title : Surround 5.1
Language : English
Service kind : Complete Main
Default : No
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Original source medium : Blu-ray
Text
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ID in the original source medium : 4768 (0x12A0)
Format : PGS
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Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 42 min
Bit rate : 36.9 kb/s
Count of elements : 3752
Stream size : 43.0 MiB (0%)
Language : English
Default : No
Forced : No
Original source medium : Blu-ray
Menu
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01:23:05.730 : en:Chapter 30
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01:35:26.721 : en:Chapter 34
01:39:02.895 : en:Chapter 35
01:41:32.169 : en:Chapter 36
01:46:57.869 : en:Chapter 37
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02:20:01.976 : en:Chapter 44
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02:29:12.443 : en:Chapter 46
02:32:17.878 : en:Chapter 47
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02:36:34.259 : en:Chapter 50
02:38:36.131 : en:Chapter 51
02:41:12.746 : en:Chapter 52
02:43:22.501 : en:Chapter 53
I just tried my rip of The Empire Strikes Back there now, and I don’t notice any sound dropouts during opening text crawl at all - how do you notice it? A long sound drop? the people voices are out of sync later on?
I did try The Martian Extended though and dropout at “science the ■■■■ out of” is still there (just to validate nothing else fixed/updated this problem on my system)
Is below the same as what you have that is going out of sync?
Also are you trying to play the English version? I wonder is sound only dropping in other languages - maybe English is the default and it doesn’t have to branch at certain points in English.
General
Complete name : E:\Media 2\Video\MKVs\Bluray\Movie\Individual\Star Wars- The Empire Strikes Back\The Empire Strikes Back (1980).mkv
Format : Matroska
Format version : Version 2
File size : 48.3 GiB
Duration : 2 h 7 min
Overall bit rate mode : Variable
Overall bit rate : 54.3 Mb/s
Movie name : Star Wars: The Empire Strikes Back
Encoded date : UTC 2022-12-05 17:09:24
Writing application : MakeMKV v1.17.2 win(x64-release)
Writing library : libmakemkv v1.17.2 (1.3.10/1.5.2) win(x64-release)
Cover : Yes
Attachments : cover.jpg
Video
ID : 1
ID in the original source medium : 4113 (0x1011)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : SMPTE ST 2086, HDR10 compatible
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2 h 7 min
Bit rate : 49.7 Mb/s
Width : 3 840 pixels
Height : 2 160 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 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.250
Stream size : 44.2 GiB (91%)
Writing library : ATEME Titan File 3.9.0 (4.9.0.0)
Language : English
Default : No
Forced : No
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : BT.2020
Mastering display luminance : min: 0.0001 cd/m2, max: 1000 cd/m2
Original source medium : Blu-ray
Audio #1
ID : 2
ID in the original source medium : 4352 (0x1100)
Format : MLP FBA 16-ch
Format/Info : Meridian Lossless Packing FBA with 16-channel presentation
Commercial name : Dolby TrueHD with Dolby Atmos
Codec ID : A_TRUEHD
Duration : 2 h 7 min
Bit rate mode : Variable
Bit rate : 3 979 kb/s
Maximum bit rate : 5 181 kb/s
Channel(s) : 8 channels
Channel layout : L R C LFE Ls Rs Lb Rb
Sampling rate : 48.0 kHz
Frame rate : 1 200.000 FPS (40 SPF)
Bit depth : 24 bits
Compression mode : Lossless
Stream size : 3.54 GiB (7%)
Title : Surround 7.1
Language : English
Default : Yes
Forced : No
Original source medium : Blu-ray
Number of dynamic objects : 13
Bed channel count : 1 channel
Bed channel configuration : LFE
Audio #2
ID : 3
ID in the original source medium : 4352 (0x1100)
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Format settings : Dolby Surround EX
Codec ID : A_AC3
Duration : 2 h 7 min
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 : 583 MiB (1%)
Title : Surround 5.1
Language : English
Service kind : Complete Main
Default : No
Forced : No
Original source medium : Blu-ray
Text
ID : 4
ID in the original source medium : 4768 (0x12A0)
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 1 min
Bit rate : 31.9 kb/s
Count of elements : 3222
Stream size : 27.7 MiB (0%)
Language : English
Default : No
Forced : No
Original source medium : Blu-ray
Menu
00:00:00.000 : en:Chapter 01
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01:19:46.531 : en:Chapter 35
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01:53:42.357 : en:Chapter 47
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02:01:58.894 : en:Chapter 50
I’ve actually always wondered why others haven’t been noticing it in The Empire Strikes Back. I have kept an open mind that perhaps, in that particular case, it’s just me. Hence, my also testing the tried-and-true “The Martian Extended Edition” above.
Here’s what I originally posted about ESB:
Just thought I’d check in and also post that I believe perhaps the best/easiest test is just to watch a rip of the 4K disc of The Empire Strikes Back . It’s only a momentary glitch, but at 1m 15s into the movie (during the opening title crawl), the sound cuts out for a moment. It doesn’t seem to lose sync at this point, but there are more glitches further into the movie. The opening crawl, I believe, are where a lot of seamless branching takes place in order to accommodate various languages.
I’ll check my disc.
OK I went back and checked The Empire Strikes Back there just now with your information to listen at position 1m 15s and I discovered something interesting that might explain a few things… it appears whether the audio dropout is heard or not is dependent on what audio hardware you are listening with.
I first tried listening to the section using the amplifier on (Denon X3400H) and I heard no glitch at all.
So I decided to see if it would be different using my Dolby Atmos headphones (JVC Exofield) and in the headphones I clearly heard the audio dropout at that exact time.
I also tried listeing directly on a connected TV (LG CX OLED) and the first time I played the opening crawl, the sound was glitching continuously many times until after crawl ended… the TV even shows a “Dolby Atmos” indicator on display when it receives a new Atmos signal, and this continually appeared, indicating that previous signal was lost. Interestingly this glitching only appeared to happen when I rewound the movie to replay the crawl, but didn’t happen at all when I played from start and didn’t touch the rewind.
So it appears that some audio devices (headphones, TVs or AVRs) are masking or covering up the audio glitches - probably depending on exactly how long it is. Most likely the Martian one is longer for some reason, so even the Denon AVR can’t mask it.
Note all above hardware is connected with 8K Certified HDMI cables - the Exofield audio processor (4 x HDMI in, 1 x HDMI out) is between Shield and Denon - the TV is output from AVR
I normally use projector with Shield so never notice any TV problems
ie HDMI chain is below
Shield 2019 Pro -> JVC Exofield -> Denon X3400H AVR -> LG CX OLED
| |
V V
Wireless Headphones Sony 360ES 4K projector
Thanks for the follow-up regarding the ESB mkv, @geogan. I wonder if some of what you’re seeing with the LG TV is due to a known bug in LG TVs when connected to Denons and using eARC. There was a firmware update for recent Denons to address this. But, now I’m taking us far afield.
I see the same things in ESB on all the Denon and Marantz receivers I’ve tested (no surprise, same parent company). But it’s certainly interesting to see that your experience varied. Though I’m relieved you were able to replicate it at lease somewhere. While I strongly suspect ESB’s issue is related to the one in this thread. Perhaps it is an edge case. And since it’s a bit quirkier than all the other examples we’ve provided here, I’ll stop mentioning it and/or using it as a test.
Thanks again!
So, I extracted the passage from the film. You can hear the sound at the beginning and then it’s gone. But actually there should be sound the entire time.
If you want to try it out, here is the file, 4K with True HD Atmos.
https://www.dropbox.com/scl/fi/3d1hj63ccf29o8pxpvs3d/Star.Wars.Episode.V.The.Empire.Strikes.Back.-Testfile.mkv?rlkey=eiw83pj5az9mv3ac4dkv2c90v&st=d6lhzlar&dl=0
I have tested this in the Plex 10.22 beta with The Martian True HD+Atmos 4K rip and this specific issue remains - sound cuts out for a second or two then resumes out of sync. This is using an Nvidia Shield Pro 2019, v 9.1.1, Plex 10.22 Beta. Plugged directly into a Samsung soundbar which is plugged into my LG C9.
If I play it on the LG’s native Plex app it has to transcode the True HD to EAC3 and then it plays normally.
@sixones Given the recent (alas, mistaken) hope that this was fixed, I think I can confidently say that a lot of us here would really appreciate an update on any progress being made. Does hope remain?
Me:
remembers first checking in on TrueHD/Atmos seamless branching issue around this time last year…
swoops back in to forums check on TrueHD/Atmos seamless branching issue
problem still occurring, Shield playback bad, Plex can’t play all movies well, etc
sets alarm to go off exactly one year from now to come back and check if problems fixed
It’s sad that you can clearly reproduce the problem and the Plex team still doesn’t fix it or can’t fix it.
For people still complaining about this still being a problem, or “the Plex team still doesn’t fix it or can’t fix it”… Perhaps you should scroll up a little to post 193 and read sixones comment on June 12th…
In other words, there is in indeed some forwards movement on this… So now ya just gotta be a little bit patient and wait for it 
