This movie has won. I can't beat it. (sync problems)

[mjvgiese]

Well, I've done it. I've finally found a movie that has beaten me, and I just can't figure it out. Maybe somebody has a suggestion? I'll tell you everything that has happened.

It starts with my movie. It's an XVid avi, 90min and 700MB. I want to make a VCD out of it. I scanned it for bad frames in VDub, and it found some. So I corrected it and saved it as a new file.

I extracted the audio in VDub from the new file, and made a wav file out of it. When I encode in TMPG I give it the XVid avi I saved with no bad frames, and the wav audio.

When I check the movie after TMPG is done encoding, the sound is not in sync. It starts off in sync and completely fine, but about 20 minutes into the movie the sound gets way off sync and it stays that way.

Here's what I don't understand...the sound is fine and completely in sync in the original Xvid avi. Even in the file with no bad frames the audio is fine. Everything is completely fine until I take it through TMPG.

Anybody have any suggestions? I'm about to give up on this movie.
Thanks so very much for any help you can give.....

[Laddydaddy]

Virtual Dub is known for creating sync problems. Use the same files you are using now (the corrected avi file and the wav file created from it) but BEFORE you start frame serving click on options in v-dub and uncheck "sync to audio". Let TMPG do the syncing. See if that helps.

[Laddydaddy]

Forget my last post. The problem gets worse if you uncheck sync to audio.

[scottb721]

Perhaps someone has an idea about this sync problem.

Normally DVD2AVI decodes the DVD audio to a WAV file. I encode this with the d2v file to SVCD using TMPG. Normally no problems.
For 1 particular DVD, Essential 80's (music video DVD), the DVD2AVI log shows audio as "MPEG Audio" and there isn't any wav file produced but another format instead.
When I encode this non-wav audio I get sync problems on my stand-alone DVD player. PC playback is fine.
The sync gets progressively worse until playback pauses, then resumes with corrected sync.
Thanks for any suggestions.

[Sartori]

I scanned it for bad frames in VDub, and it found some. So I corrected it and saved it as a new file.

I extracted the audio in VDub from the new file, and made a wav file out of it. When I encode in TMPG I give it the XVid avi I saved with no bad frames, and the wav audio.

When I check the movie after TMPG is done encoding, the sound is not in sync. It starts off in sync and completely fine, but about 20 minutes into the movie the sound gets way off sync and it stays that way.

Here's what I don't understand...the sound is fine and completely in sync in the original Xvid avi. Even in the file with no bad frames the audio is fine. Everything is completely fine until I take it through TMPG.

I`m guessing that you are test playing back the corrected file in media player , mplayer has "remarkable" almost supernatural powers to keep files in sync - but when burned to vcd , it becomes apparent they aren`t . The sound might not even have been really in sync in the first place , is the other option .(search for other topics of this nature)
You could try just try frameserving the original file to tmpgenc and then encode , just leave the bad frames in .
I personally have never had a problem with vdub putting things out of sync , even with massive numbers of dropped/bad frames .
I also recall something about vbr (audio) sending encodings out of sync , do you have any software to check accurately the length of video and audio seperately to see if they correspond - any discrepancy you could try adjusting its size of the wav . The new vdub has a stretch (and I presume by using negative numbers - shrink ) function , this would need some scary maths but its free .
Sorry its not much to go on .
Rob

[ZippyP.]

mjvgiese:
I had a similar problem once, it turned out to be bad frames that Vdub would not detect by scanning. What I did: Look for the exact point where it goes out of sync. Go to Vdub to cut it out manually and save the file. You may have to encode short clips of the movie at different points to help try and locate it. It was a lot of manual work but I did get it, in my case there was more than one.

[Don2050]

My experience with a similiar movie ended up being corrected as ZippyP said...manually chopping it where you notice it out of synch( look in the avi....it most likely is their too albeit much less noticable) and then adjusting the audio interleave and resaving it and stiching back together...

it is a pain and a lot of work...but for me the only way that worked on this one movie

[harry41]

open dvd2avi..onfiles..find movie...on bottom box show all files...save project...open tmpeg cancel wizard.....browse video..go to where u saved file...same on audio.....do settings....load plate ...should be ok...best i can do :P

[mjvgiese]

ZippyP and Don2050,
So I should try to pinpoint right where the sound starts to get off sync, and then cut it there? And then add or delete time to get the sound back in sync, and then merge the two halves to make one file?

I just want to get this straight before I try it, I want to do it correctly!
Thanks everyone for the advice, I appreciate it very much!!

[Cecilio_87]

ZippyP and Don2050,
So I should try to pinpoint right where the sound starts to get off sync, and then cut it there? And then add or delete time to get the sound back in sync, and then merge the two halves to make one file?

I just want to get this straight before I try it, I want to do it correctly!
Thanks everyone for the advice, I appreciate it very much!!

hey i can help you and i say this confidently. yea about a week ago my friend downloaded 3 xvid movies and well i started working on them and yea i said the same thing as you i said how can this be possible that i cant make it. all you got to do is easy. if you installed an xvid codec do this open up the Xvid folder and then there is a program called AviC(four cc change) all you do is put browse and you open the original avi-xvid and then there are 2 boxes now they say xvid on both now all you do is change them both to divx and put apply. this takes about 1 second. now you open up tmpeg and you use whatever template you want and you open up the file and it will encode it normally with no problems. believe me it sounds like it wont work but it will. and if the movie has bad frames it fixes this too.

[ZippyP.]

ZippyP and Don2050,
So I should try to pinpoint right where the sound starts to get off sync, and then cut it there? And then add or delete time to get the sound back in sync, and then merge the two halves to make one file?

I just want to get this straight before I try it, I want to do it correctly!
Thanks everyone for the advice, I appreciate it very much!!

Yes, that's exactly what I had to do.

[Don2050]

mjvgiese,

A second to ZippyP, yes that is what I did also.

but......

try what Cecilio_87 said....if that actually works, I may just shoot myself.

[ZippyP.]

Yes, and please report back if it does work.

[mjvgiese]

Here's an update on my progress!

I tried what Cecilio_87 said to do. After changing the xvid to a divx, the sound was in sync, but it was in sync in the original xvid, too. I encoded it in TMPG, and once again, the sound got off sync. It was fine until about 42 minutes into it, and that's about when it got off. It got ahead by about 5 seconds and it stayed that way.

So, as much as I hate to, I think I am going to have to cut it where the sound gets off, add some silence to get it in back in sync, and put it back together. I think I have pinpointed where it gets off though!

So, I would have to say, unfortunetely, that Cecilio_87's method didn't work for me, but, maybe it would for one of you?? It's a great way to change xvid to divx though!

I'll put another update on either tonight or tomorrow, after I find out how cutting it and putting it back together works.

Thanks again for all the help, I couldn't do it without!!

[DIDIDAVE]

<link removed - no warez>

A STEP BY STEP GUIDE TO ENCODING TO VCD/SVCD/DVD + ALL THE SOFTWARE DOWNLOADS YOU NEED TO COMPLETE THE ENCODING.
MANY THANKS

DIDIDAVE

[omicron]

MJVGIEZE, and all the others:

there must be a simpler way. We are all struggling with the same problem, I can't believe the only way out is through that painful / approximate manual method.

Please all experts, have mercy on us. What's the elegant way out ?

[mjvgiese]

I agree with you, omicron! There has to be an easier way!

I'm not having very much luck doing it manually....I may just forget about this movie and move on! It is so very frustrating! And my programs don't help me at all. I can't figure out how to put a silence in, and I'm not even sure what program to use. Is there not an easier way?

[Don2050]

As for an easier approach...perhaps this...

https://www.videohelp.com/forum/userguides/78944.php

This may work.

As to manually adjusting it, use Virtualdub, Audio>Interleave>Delay audio trak by, that will shift the audio forward or backward depending on if you use positive or negative values......

I hope their is an easier way of doing it too, but I am uncertain what it is...

[Don2050]

Kinda late I know....but Mjvgiese if you are still trying to fix the synch issue on that movie:

Gonadan
Member
Posted: 2003 Feb 21 05:52

--------------------------------------------------------------------------------

What works for me:
- openn Vdub
- select Direct stream copy on both audio and video
- save wav (about 110MB)
- open wav in Nero Wave Editor
- Save as wav-PCM (about 1GB)
- open as audio source in TMPGenc or VirtualDub

I got rid of the synch problem this way.
_________________
Mae pado, in elenath sílathar aen na râd gín.

Gonadan - Lord of Edheldor

http://www.nightwish.com

or this:

https://www.videohelp.com/forum/userguides/100617.php


Maybe this is the easier way you were looking for (and me)