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Xvid/Divx audio out-of-sync
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mike8333
Newbie
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12. November 2006 @ 18:33 _ Link to this message    Send private message to this user   
Hi guys,
I know this is the old problem, but I have comb the net in vain!
I have so far compressed more than 100DVDs, all encountered out-of-sync problem was just delay, but this one is problematic.

My problem:
(Monster House) Video/audio starts ok, FWD to 1 hr...the video is 2mins late.

Wat I use:
DVDFabDecrypt
AutoGK 2.27/2.37B

Wat I have done:
Re-installed AutoGK
Tried both DivX XviD codec
Create audio and video separately

Note:
I had the video and audio(AC3) on separate files, playing them on 2 instances of VLC player, the problem seems to be non-existence, but when I mux them (using VDubMod)the problem re-surface.

Wat can I do, please help!
Mike
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Senior Member
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16. November 2006 @ 21:21 _ Link to this message    Send private message to this user   
are you puting the files on a dvd? also are the file out of sych before you compressed them? did you get the file off the net? or did you rip fron a disk?
aldaco12
AfterDawn Addict
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22. November 2006 @ 06:56 _ Link to this message    Send private message to this user   
Extrach the AC3 sound from the VOB set using ReJig in IFO mode and the box 'correct AC3 delay' checked.

Or determine the A/V constant delay which that DVD has and insert it in VDubMod, that is:
- do Stream___Stream List;
- then right click the audio stream and select 'Interleaving';
- under Audio skew correction insert the delay to apply.

Remember: you will have to determine the A/V delay of the DVD. Many applications can do that.
- On Rejig, the audio stream is called, whan you Demux it:
AC3_Audio_0xBD_0x80_Delay_XYZms.ac3
- On DVD2AVI, whan you save a D2V file simultaneously demuxins an audio trace, that trace is called similarly:
name AC3 T01 (channels)ch (bitrate)Kbps DELAY XYZms.ac3
where T01 = Trace 01 = 0x80
- DVD Decrypter writed a file information about it when it ripped a DVD
....


This message has been edited since posting. Last time this message was edited on 22. November 2006 @ 06:58

mike8333
Newbie
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22. November 2006 @ 07:02 _ Link to this message    Send private message to this user   
Originally posted by rdmercer1:
are you puting the files on a dvd? also are the file out of sych before you compressed them? did you get the file off the net? or did you rip fron a disk?

The XviD movie was ripped/compressed from DVD using DVDFab/AutoGK combo.
Movie Video/Audio was out of sync the moment the file was produced.
By tearing it apart and using 2 instances of VLC....it sync! (funny)
mike8333
Newbie
_
22. November 2006 @ 07:10 _ Link to this message    Send private message to this user   
Originally posted by aldaco12:
Extrach the AC3 sound from the VOB set using ReJig in IFO mode and the box 'correct AC3 delay' checked.

Or determine the A/V constant delay which that DVD has and insert it in VDubMod, that is:
- do Stream___Stream List;
- then right click the audio stream and select 'Interleaving';
- under Audio skew correction insert the delay to apply.

Remember: you will have to determine the A/V delay of the DVD. Many applications can do that.
- On Rejig, the audio stream is called, whan you Demux it:
AC3_Audio_0xBD_0x80_Delay_XYZms.ac3
- On DVD2AVI, whan you save a D2V file simultaneously demuxins an audio trace, that trace is called similarly:
name AC3 T01 (channels)ch (bitrate)Kbps DELAY XYZms.ac3
where T01 = Trace 01 = 0x80
- DVD Decrypter writed a file information about it when it ripped a DVD
....
Thanks Bro,

Your method is good only for constant delay problem.
I corrected this kind of delay using Vdub1.6 using it's interleaving function.
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mike8333
Newbie
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22. November 2006 @ 07:38 _ Link to this message    Send private message to this user   
Actually...I had solved the problem.

After reviewing the XviD file, I found the back portion of it has a little angle problem (repeating scenes).

Using IFOEdit, I tried to remove all angles except "Angle 1", unfortunately it didn't work bcos (later found out) the program fail to identify the relevant VOB-id correctly.

By using VLC and PowerDVD in tandem, I reviewed all VOBs from the main movie, found that the last VOB(VTS_03_05) was the problem one.

Found a nifty progam, VobEdit from the net, I "tore up" the VOB and produce some 700+ smaller VOBs, the program also produce a log file ID-ing all the VOBs.
So I determine and deleted all VOBs related to ID21, renamed the remaining files in running order using another progam.

Finally using VobEdit again, I join the multi-mini VOBs back into 1 single VOB and replacing the original.

Then I re-AutoGK, all came out perfectly.

Note: After using this method, DVDShrink will not be able to produce an ISO file citing missing VOB.
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