Audio sync problems after I author DVD

[sparty]

I've searched and searched and still haven't found any solutions:

Problem: I've converted some avi's to what I thought were DVD compliant mpeg-2 using TMPGenc with half KDVD template (www.kvcd.net). The resulting mpeg plays perfect but when I author it to DVD using Ulead Workshop, Ulead MovieFactory, etc. with all the latest patches, the DVD audio is not in sync. It starts out OK and then drifts.

Does anyone have any solutions, know what causes this, links to any guides that will help.....anything?

I've seen similar posts but nobody seems to know the cause, solution, or answer. I have also captured video with my winfast TV2000 XP capture card and same thing, when I go to author to DVD audio out of sync again although much worse than the TMPGenc conversions. Hopefully I am just missing some tools that will fix or prep my MPEG-2's without having to re-encode.

[it's just me]

I'm having exactly the same problem. I've tried everything. Creating separate audio and videofiles (m2v and mp2) with Tmpgenc and load them in Spruceup. This didn't work. So I created a perfect Mpg-file with Tmpgenc (system (audio+video)), but the authoringsoftware messes things up. I've also tried all Ulead software, DVD-it and Spruceup... And always the same outcome...

I'm beginning to regret the fact that I actually bought a dvd-writer. What's the use when you can't burn a whole divx to a dvd? Furthermore I've also tried to burn a shorter file (already mpg) to it, and had the same outcome as the poster.

This seems to be a very commom problem. So there must be someone out there who has a satisfying answer. Please, come forward!

[bugster]

Firstly, when encoding with TmpGenc, I strongly suggest sticking to the supplied DVD templates and change as little as possible from that until you are confident in your encoding/authoring skills. AFAIK, the KDVD templates are not strictly DVD compliant, but close enough to work in many players. However the lack of compliancy may cause problems in other areas. Who knows how a particular authoring app will handle them.

Secondly, ensure you encode with TmpGenc to the same framerate as the original avi. So basically, if your avi is 23.97 or 29.97 select the NTSC DVD template (for 23.97 the set encode type to 3:2 pulldown on playback and fps to 23.97), if it is 25fps select PAL DVD.

Thirdly, read the guides on this site about conversion and authoring, read the forums and ask specific questions about specific problems. Vague questions only get vaguea answers if any at all

Hope this helps.

[sparty]

Thanks for the info/suggestions bugster.

I have some experience with creating VCD's and SVCD's and it seemed that if my resulting mpg file was satisfactory (audio and video in-sync), when I authored the VCD or SVCD it would perform exactly like the mpg file on my standalone DVD player (apex 1500) and on multiple PC's. I think transitioning to authoring DVD's I am surprised that the mpg play is not always the same when authored to a DVD, unlike my experience with VCD's and SVCD's. From what I am gathering, it seems that DVD compliance is much more strict or maybe there are so many options that effect the authored DVD when compared to SVCD and VCD.

I guess what I am trying to understand is the transition from Mpeg-2 to an authored DVD and how it's synchronization changes in that authoring process, I'm not sure how to be more specific about this question at this time and I have read a few guides, but I still don't understand it and I was hoping somebody could shed some light on it or point to a guide that addresses this issues specifically. Until then, I guess I will keep searching and trying...

[kwag]

AFAIK, the KDVD templates are not strictly DVD compliant

Sorry to drop in, but KDVD templates are 100% DVD compliant.
If it doesn't work for someone, it's the authoring program or the method it was imported by the authoring program or encoded audio. I've used ULead's DVD MovieFactory and DVDit many times, and the DVDs created work in every DVD player I have tested. The templates are set to the same strict GOP as in the standard TMPEG DVD templates. The only difference is the Q. Matrix, and that shouldn't make any compatibility problems.

-kwag

[it's just me]

Could it be that my divx 23,9 fps (i guess that's NTSC) when selecting PAL (because I live in the Netherlands) causes this problem when authoring? Strangely enough though, the converted mpg (from what I understand from NTSC to PAL) is perfectly in sync. Last night I've used Virtual dub to make a pcm-wave and streamed the original avi with the new wav. Then I used DVD Workshop and converted the AVI into VOB-files. Tonight, after work, I'm gonna try to burn them with VOB instant DVD or Nero (latest version update).

I dunno what the result is gonna be, but I will post it on this forum. I hope this time it's gonna work.

By the way, is it possible to burn a NTSC-dvd and view it on my television in the Netherlands? That would solve the conversionproblem...

Maybe that's the answer to my question. As far as I understand, I'm converting the avi to mpg at 23,9 fps. When authoring I'm telling the software it has to be a PAL-dvd... I think that's where te trouble starts? Or am I wrong?

[bugster]

By the way, is it possible to burn a NTSC-dvd and view it on my television in the Netherlands? That would solve the conversionproblem...

The only way to be 100% certain of this is to try it but the chances are it will be fine. AFAIK, nearly all DVD players will play both PAL and NTSC disks. When a european player sees a NTSC format disk they tend to output either NTSC signals or PAL-60. As most european TV's have been multistandard for years this doesn't often cause a problem. Only the unlucky few (and most americans) need to do format/standards conversion from downloaded divx files to NTSC/PAL as required.

[it's just me]

Maybe that's the answer to my question. As far as I understand, I'm converting the avi to mpg at 23,9 fps. When authoring I'm telling the software it has to be a PAL-dvd... I think that's where te trouble starts? Or am I wrong?

[it's just me]

...last night I've used Virtual dub to make a pcm-wave and streamed the original avi with the new wav. Then I used DVD Workshop and converted the AVI into VOB-files. Tonight, after work, I'm gonna try to burn them with VOB instant DVD or Nero (latest version update)...

Guess what?! It worked! Audio is in perfect sync!

[RealaT]

I HAVE THE ANSWER!!!

This exact same thing has been happening with me using kdvd half d-1 template and latest version of tmpgenc (2.59).

The problem is tmpgenc itself, there seems to be a multiplexing problem in the latest version.

Either switch to using 2.58 or re-multiplex with 2.58 after you've encoded.

(I know it's a bit late but I thought it might help somebody)

[fyw367]

Hi,

I have the same problem. I am capturing with Intervideo Wibdvr.and put it on DVD with Ulead DVD workshop 1.2.
Could the problem be that the audio sample frequence is different .
From 44K capture to 48K authoring.

It's a wild guess of course.