DTS, DTS-HD, DTS-X Lipsync (solved)

Ok, so I don't think yours is this DTS sync issue - more likely down to VC-1 which we know this SOC seems to have trouble with. Most VC-1 issues seem to have been resolved now, but I wouldn't be surprised if other VC-1 files turn up with issues - it is Microsoft after all!!!

 

You and me both!

 

In my case, however, the desynchronization problem in DTS is perfectly reproducible every time.
It's not excessive but it's there and it's noticeable (it doesn't happen with the original disc in the Panasonic 820 UHD player)

 

@Markswift2003 do you know if the devs made any progress in resolving the dts sync issues?

 

Not that I've been told.

I don't think they can replicate it - I certainly can't and I've tried everything I can think of.

So as I've repeatedly said, I haven't got an single clue as to what's happening with people who experience this or why they do - there are several users who have reported it and they have very similar setups to me, and if you look at my recent posts on this thread, the same or similar settings on the box.

So I'm definitely not saying it doesn't happen, I'm just saying I absolutely can't replicate it both on a TV setup with no latency and a projector setup with latency defined in the EDID so I have absolutely no idea where it's coming from.

 

Damn I regret selling my Z1000 Pro, I had zero issues on that. It was a straight swap out on my current set up with the Z3000 pro, so for me nothing else has changed in the chain so I know it’s an issue with the Z3000 Pro firmware.

Hope the devs don’t give up on it….

 

Surely they can add a manual DTS offset setting and just be done with it

 

There are so many users suffering this issue that Zidoo devs have to take a serious look. They can't say no to a clear evidence and find a fix soon, although I'm in the non-affected group.

 

And when they are at it, changing the available offset steps from 25ms to 1ms...

 

Yes, that would be great.
But what I found out is this:
1. Settings/audio/pass through enabled and synchronisation correction 150ms Ahead
2. Video player settings/advanced/audio offset /delayed by 150ms

With this both settings, 99.9% of the tracks DTS, Dolby & AAC are in sync and the box playes well. You can enjoy content without sync problems on this boxes.

 

Unless you use Emby unfortunately; Video player settings don't apply.

 

+150ms and -150ms should net out to no difference but seems like its working as a fix? I will test it out tonight and report back.

 

I just tried that and it doesn't work for me. The DTS seems to be in synced but Atmos is off. When I put everything back to 0 ms on both, Atmos is back in perfect sync and DTS has 150ms audio ahead of video.

The Zidoo team simply needs to put a passthrough compatibility option that affects only the DTS codecs (DTS, DTS-HD/MA and DTS-X) so that we can put a delay of 150ms there and we people with the problem will have a fix.

@Markswift2003, please push that fix on the Zidoo dev team.

NOTE: I am still on 1.1.70 because I see too much problems on the newer FW here to risk an update.

 

I do wonder if these issues are a combination of settings and that would explain why some have no issues and others have problems. I have found myself with previous models this is the case and changing one or two things seems to be a world of difference with playback reliability some of these setting also seem to vary with the firmware versions that is why I don't update generally with every firmware revision once I reach stable playback.

 

The problem is that I have yet to see the stability of the reproduction.

 

I tried this just now and it does work for the couple of DTS audio tracks that I tested on, however when I switch to a Dolby Atmos movie track it throws the Atmos tracks out of sync.

Think this needs a little more digging….why does it fix the DTS side of things but not the Atmos…and why does this work at all if we’re doing +150 and -150, when the two should net each other off?

 

NO I don't use an Emby. And what is an Emby, what it's doing?

 

So in my case without this settings DTS is out of SYNC. First I had +125ms and -125ms and If I remembered I've also tested Atmos. After some period tried 150ms and it seems more ok but didn't tested Atmos.

So, again, in my case if I put only in video player settings a delay of 150ms the DTS tracks will be in sync but desyncs Dolby Digital tracks. This is the reason that I put also in passthrough an +150ms to sync the Dolby Digital tracks. Somehow this last setting affects only DD part. I will test an Atmos track later and I will come back with the results.

And an important thing is that I ve tested the Atmos tracks when I had 1.8 firmware. With the current firmware didn't test but only modified fro 125 to 150ms.

 

From my point of view this is happening because there are different products that use the same chipset, different batches of the same product and not at least different components even if the the same type but from different batches. This could lead to a hardware problem that needs different approach for each situation and If so, this could be very difficult to be solved (this is the sad part).

And Voila this is why these boxes that uses the same chipset and the SAME SOFTWARE have different behaviours for a lot of people. Because otherwise it cannot be explained how some people are having some type of problems and others not. Especially in the video playback part where technicaly for most of users with normal/standard settings and the same box, the problems should be the same. With the audio part let s say that equipment can introduce delay, but this delay should be for ALL TYPE of tracks, because the TVs/receivers/projectors/cables will use the output signal from the boxes and ad delay to it (long cables or different time for processing the signal).

 

This is actually the first time I've seen a delay only for a certain type of audio encoding and not for all audio in general.