out of sync

[atran]

I have audio that I have ripped with DGIndex and have encoded the video with megui. The video and audio are fine. Whenever I mix them both in MeGUI and MKVToolnix, the audio and video are out of sync. Any idea what is wrong. When it ripped with DGIndex is said delay of -16ms so it was set like that in megui mixer. I have no idea what is wrong.

[atran]

Oh and the only thing I have done differently this time is in DGIndex in the video option in field operation I said ignore pull down frames. This seemed to be adding interlacing to my videos I was ripping with DVD decryptor. Used too I left it default and it would end up with interlacing, then I would have to deinterlace in megui but it wouldn't get all the interlacing and you could see lines every now and then. Did this change in DGIndex cause this desync?

[atran]

Any idea what I am doing wrong to get this problem?

[manono]

Hi-

Did this change in DGIndex cause this desync?

No. Most likely it happened during the DVD Decrypter stage, especially if this is a newer DVD using newer copyright protection. Why don't you just adjust the delay in VDubMod, to get it back in synch? Except I know nothing about MKV or even where you adjust the audio delays when using it.

[atran]

Hi-

Did this change in DGIndex cause this desync?

No. Most likely it happened during the DVD Decrypter stage, especially if this is a newer DVD using newer copyright protection. Why don't you just adjust the delay in VDubMod, to get it back in synch? Except I know nothing about MKV or even where you adjust the audio delays when using it.

Thanks for your reply. I was looking through the DGIndex manual and I came across this, which I was using.

Ignore Pulldown Flags - The pulldown flags are ignored. This allows one to obtain the raw encoded MPEG pictures, with no repeated fields. However, because repeated fields intended for display are ignored and not displayed, the resulting frame rate may differ from the source frame rate. It may even vary throughout the clip, due to irregular patterns of pulldown flags. If the pulldown is irregular, use of this option will cause the audio-video sync to change at different parts of the clip, and most likely sync will not be acceptable. This option is mostly intended for power users, who would use it as a diagnostic aid for inspecting the encoded MPEG pictures. Although this option ignores the flags, they are still stored in the D2V file although DGDecode will also ignore them.

So I am guessing that caused my problem. I am going to try the Force Film mode and see if that helps.

[manono]

Well yes, if you used Ignore Pulldown Flags, then that can (and often will) cause audio asynch. But that's so basic that no one uses that setting, and I didn't think of mentioning it.

By the way, what is the FILM percentage of this movie? Look at the bottom of the D2V file for it. Ignore Pulldown Flags will mess you up if it's not pure FILM and not pure VIDEO. If it is a mix of FILM and VIDEO, then using Force FILM won't be any good either. You'll be left with interlacing and jerky playback during the video sections.

[atran]

99.23% Film

[manono]

Thanks. That's high enough that Force FILM should work fine. The small bit of VIDEO will usually be in the black frames, and not in the active video, but not always.

[atran]

Ok I reencoded it into force film and it still is out of sync.

[manono]

Then maybe it's for the reason I stated in my first post. In any event, I don't know why you're spending so much time on this. Just adjust the delay. To find the amount of the delay:

Open the video in Media Player Classic. Right-click the screen and go Options->Filter->Audio Switcher->check the "audio time shift" box, and fill in an estimate of the amount of asynch. Hit "Apply" and test it out. Negative values are to make the audio play earlier. 1000 ms= 1 second. Resume playback. Adjust until you get it right. At that point you'll know how much the audio is out of synch and how much to set the delay in your mixer.

[setarip_old]

@atran

Hi!

What is the Title and Region of this problematic DVD?

[atran]

V for vendetta region #1

[atran]

Then maybe it's for the reason I stated in my first post. In any event, I don't know why you're spending so much time on this. Just adjust the delay. To find the amount of the delay:

Open the video in Media Player Classic. Right-click the screen and go Options->Filter->Audio Switcher->check the "audio time shift" box, and fill in an estimate of the amount of asynch. Hit "Apply" and test it out. Negative values are to make the audio play earlier. 1000 ms= 1 second. Resume playback. Adjust until you get it right. At that point you'll know how much the audio is out of synch and how much to set the delay in your mixer.
Well its in sync at in very beginning of the movie where is shows logos, but then starts getting out of sync after that.

[setarip_old]

Read this entire thread:

http://forum.doom9.org/showthread.php?p=864667#post864667

[atran]

Well I read that and all I could get out of it is that this person used a DGIndex setting of 23FPS. Is that what you were trying to point out?