View Full Version : this one is tuff. multiple frame rates in VOB
reddragon72
2nd January 2003, 05:36
I have a movie that starts out at 24FPS and 1/4 of the way thru it it jumps to 29FPS. Accually it is the second cd of Ice age. the largest file on there has all the movie trailers ever released for the movie and then behind the scenes. Well the trailers are all 24FPS and then it jumps to 29 for all the behind the scenes. The audio is in sync for the first part until the behind the scenes comes up then its off by about 1-2 seconds. I have tried redoing the video with force on and off and nothing it still comes out wrong. has anyone any ideas or maybe a program that can edit ac-3 files so one or two seconds can be added to the file before the behind the scenes to make the audio and video line up, or even split the audio into two files so that the can be syncd in maestro? Any help at this point would be great. thanks
reddragon72
3rd January 2003, 02:41
Someone has to know of a AC3 editor or splitter, and yes I have tried the one here on this site and it doesn't do what I want. Also the search engine on this site is odd, I tried looking for AC3 editor and it gave me a ton of returns based on ac3 and editor as seperate words so I put and in the middle of the two words and I got the same results.
FamousPerson
3rd January 2003, 15:46
You can maybe try AC3DelayCorrector.
But instead, why don't you rip each trailer, etc separately? They must all be separate PGCs or VOBids, right? (The behind the scenes must have been shot on video). Then you can reencode each as separate movies on your final disk.
reddragon72
3rd January 2003, 19:21
I thought about that but I would have to redo all the menu's unless I go through the pain of rebuilding the VOB's. I already have the video done and ready to go I just need to remove 1.4 seconds from the audio during the break between trailers and video footage. then just run them thru maestro and it's done no need to tear everything apart. I noticed that the sound is only 2 channel so even making the ac3 to a wav has become an option now then reencode it back to ac3 if needed. But for 6 channel audio changing an AC3 file to wav will loose the extra channels and that would suck severly. If the wav thing works out then I'm set ,but later on I will have to do the rip each part from the VOB thing to make it work.
FamousPerson
3rd January 2003, 19:49
Sorry, I do not have any idea. Frankly I'm surprised you are as in sync as you are, given you ripped a bunch of separate titles all together.
reddragon72
4th January 2003, 02:32
accually on the second dvd the trailers and the behind the scenes are all on set of vob's that are under one ifo file. vts_11_1 through 4 are all the trailers and extra's and one ifo tells where all the individual parts are. so I took and treated the vob's as if it were a movie the only problem is in the first(vts_11_1.vob) vob has the trailers, which are in the first half of the vob and then the switch to behind the scenes comes in and it's 29FPS but the trailers in the first half are 24FPS so they glued all the this stuff into one set of vob's with different frame rates. well the audio is synced fine for the trailers as long as I select force 24 when I rip this to an avi using dvd2avi, but the sync of the audio is off by one and a half seconds for the behind the scenes. now if I don't select force 24 then both are off and the trailers look goofy. All I need to sync the audio is to remove 1.4 seconds of audio between the trailers and the behind the scenes. I just couldn't find any program to edit the ac3 file. I'm working on it now to see how it turns out with my method and are crossing my fingers.
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