Time delays in wav from VobBlanker/DGIndex/HeadAC3he

vbimport

#1

I’ve been using this guide to edit my Vob files: http://forum.videohelp.com/topic338866.html

Initially I applied the method to my original VOBs and it worked fine, but I didn’t need all the VOB and given the run times I decided to cut the VOB first with VobBlanker, and only then apply the previous method.

The problem is, the video starts to play from time=0, while the audio, wav-format in particular, starts to play from t~=23 minutes, which is where cut it on the original VOB. If I extract to AC3 (using DGIndex), it plays fine on VLC, but when I convert it to wav (using HeadAC3he), the delay reappears. And for some reason when I decode to wav directly using DGIndex, the program run normally, but no wav-file is created.

Also, my VOB audio only has 2 channels, so if the wav-decoding worked on the DGIndex, then should I just use that instead cc3 first, and then the to wav using HeadAC3he as per the original guide (why did the author go through that extra step?)

Thanks in advance.


#2

What is your goal? Are you trying to edit a single VOB, by converting to avi ,edit then convert back to VOB?..You could do that with an MPEG editing tool,or if just simple cutting a complete DVD source use DVDshrink’s Re-author mode with Start/End feature…

I don’t use Premier Pro,like in the guide, but if you already have a VOB on your HDD,then I would just use something like PGCDemux to extract both your video and audio streams, no re-encoding and it will save you those un-necessary steps…I’d use DaudioK or ac3Tool for ac3>wav…then load your new .m2v file and wav audio in Virtualdub…If creating an avi is your goal of course…

http://www.videohelp.com/tools/AC3Tool
http://www.videohelp.com/tools/DAudioK


#3

Goal = trim and clean up a copy of a low quality DVD (made from an old VHS tape), and then convert to avi.

The original DVD image consists of 4 VOBs (+ifo/bup) worth about 2 hours of video. I want only want 24 minutes of that, which belongs to the first 2 VOBs.

You could do that with an MPEG editing tool,or if just simple cutting a complete DVD source use DVDshrink’s Re-author mode with Start/End feature…

Thanks. I just installed DVD Shrink and the re-auther method worked fine - I’ll return to this thread later. Need to test out the new VOB first.

By the way, what’s up with DVD Shrink? I hadn’t installed it before because it hasn’t been updated in 4 years, which is a life time in software design, yet somehow that tiny 1 MB program still gets recommended all the time… Why? Isn’t there a more up-to-date alternative to it?

I don’t use Premier Pro,like in the guide, but if you already have a VOB on your HDD,then I would just use something like PGCDemux to extract both your video and audio streams, no re-encoding and it will save you those un-necessary steps…I’d use DaudioK or ac3Tool for ac3>wav…then load your new .m2v file and wav audio in Virtualdub…If creating an avi is your goal of course…

http://www.videohelp.com/tools/AC3Tool
http://www.videohelp.com/tools/DAudioK

I’ll look into those. I’m not using Premiere Pro actually. For now I’m still trying to extract the audio so that I could edit it with MAGIX Audio Cleaning Lab (v12)… I was going to use VirtualDub (or maybe Cyberlink PowerDirector or something) for the video, which could use touching up too… Then compress it into avi (Xvid MPEG compression)…


#4

DVDShrink ,while no longer updated,is a valuable tool in my arsenal…