Audio and Video out of sync
I have a rip that has the video behind the audio of around half a sec or so. Any ideas how I can get them sync'd? I think it has something to do with the multiple audio streams as you can see below.
The file is a DVD rip to single vob then renamed to mpg.
Any particular reason you are keeping the multiple streams? If you want use just one stream, get dvdshrink and check the stream you want to keep, and then use vob2mpeg to point to that video_ts folder and it will merge the vobs into one mpeg. Let me know if you have trouble finding those apps, I can give them to ya.
If you must keep it as an mpg, then it’s not easy and no fun. Considering you have 4 audio streams, you can multiply the not easy and no fun by 4.
If you must keep all streams, the stream that has the delay will need to be recognized and then all streams will need to be demuxed…you can use DGMPGDec for that (instructions for that are too much for me now, it’s not that hard to figure out though).
Locate your problem audio file (.ac3) and load it up into AC3 Delay Corrector. Interface here is pretty simple to figure out. If your audio is lagging behind video, you'll want to increase delay. If audio is ahead of video, you'll want to decrease delay. You will probably need to try this a few times to get it ‘perfect’, but start as close as you think you are (i.e. if you think it’s a half second, use 500ms). If your m2v (demuxed video file) and ac3 file have the same name, you can open the m2v file in Media Player Classic and it will play back both files for you so that you can test your delay by ear.
DON’T OVERWRITE YOUR ORIGINAL FILES.
Once you have it the way you like (sync), mux them back together. There’s a few that are available for free, but the easiest I found to use was ImagoMPEG-Muxer. I don’t know if it works on anything past XP, but it should. If not, a search for free M2V AC3 muxer should find you something.
Good luck. After a few hundred of these over the years, MKV makes things so much easier. Consider switching (unless you have an extender, then I'll just leave you with the good luck ;) )
Good day,
Really Jon give well details solution, I will just add small input to the matters.
As it dvd, and all you want to correct the Audio sync, here simple steps:
1 – Run PgcDemux and as the delected options in the photo, hit “Check A/V Delay” and write the number
and let the program demux you dvd files.
2 – Then run Muxman and write the audio delay for the audio files.
I used to do that in the old day, but again< Jon suggestion may be better.
My best
