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View Full Version : Subtitles Sync in Scenarist


dgwak
8th January 2003, 19:01
I have followed Trilight multi PGC method on 4 movies.

Everything works fine except the sync of subtitles. It starts out ok then gradually goes out of sync by about 3 or 4 seconds by the end of movie.

I followed the steps listed in the guide, i.e. first "do it for you" to demux each PGC, and CCE, Scenarist and ScenChap, then import subtitles.

I do not have this problem in Maestro. The only explanation I have is that the m2v files imported are created without the drop frame flag on. (but I do change that to drop frame in Scenarist once imported, as the guide suggests)

oddyseus
9th January 2003, 17:43
unfortunately u have to encode with dropframe or change afterwards the correct flags in the video. U simply cannot denote it as a dropframe one and expect to be OK.

TRILIGHT
9th January 2003, 18:34
First, get my nick right, dude! LOL! :D If it's progressively getting out of sync, it's definitely a drop-frame problem. If you're using the pulldown built into DIF4U! then it will set the drop-frame flag automatically. The easiest thing to do in order to make sure all of your assets are correct in Scenarist is to change the project settings to drop-frame before you even import anything. After doing that, anything you import will be set as drop-frame in Scenarist.

dgwak
9th January 2003, 18:39
Thanks for your post. Hey, at least my suspicion was right! :D

Ok, then I will try that on my next back up and let you know if I still have the problem.

Thanks a bunch!:)

iomagic
9th January 2003, 22:22
By the way! You guys are absolutely right, slowly getting out of sync is *usually* a drop-frame problem (and there is "Settings -> Default settings -> Drop Frame" thingie in Scenarist).
But I did have one situation when the problem was that the movie was telecined at 24fps instead of 23.97fps, and I only got it right when I set the respective frame rate in DVD2AVI. Just something to consider.

TRILIGHT
9th January 2003, 22:29
Set the respective frame rate? You mean choosing force film or not force film? Also, you need to share with everyone what title it was and what VTS so they can find the information you just mentioned if they do a search.

iomagic
10th January 2003, 01:11
Oh, wonderful point!! Sorry if it was in the forum rules and I missed it... The movie was "Swordfish", and DVD2AVI has option to force film at 23.97 or at 24. I think that when I tried it first time, I had an old DVD2AVI, and it was forcing things to 23.97, and the subtitles got out of sync. (I honestly apologize for not remembering for sure, now I think it was audio, but the main point is - something was definitely out of sync). Later I got back to this movie and re-converted it, this time forcing film 24, and it came out perfect.

TRILIGHT
10th January 2003, 01:52
No, you weren't breaking any forum rules. I just try to make it more than just a "discussion" place. If someone were to come in and do a search for a particular title they may be having a problem with, they would not find your information because you didn't mention the title. We try to make it so that the forum remains as helpful as possible to others.

As for what you said, I have NO idea what you mean. The version of DVD2AVI most of us use has "Video...Field Operation...None, Forced FILM, and Swap Field Order". We choose "None" or "Forced FILM". I don't know what you're using to cause such an issue or have other options.

iomagic
10th January 2003, 02:19
OK, here's the snapshot of my DVD2AVI ver. 1.76 (modification 1.86) menu - see, it has 23.976 and 24.000 fps.

Now, I just did a test, and these settings create identical d2v files, with only one exception - Frame_Rate=23976 or Frame_Rate=24000, nothing else is different. I'd think that in the worst cases, when people are about to tweak the speed of their audio files, trying to keep the proper pitch and not get huge distortions, it might be an interesting idea to tweak this parameter instead and then process the movie again.

It would take a lot of time, but the good news is that at least CCE settings will be known, so it's only a matter of dumb reencoding without much human intervention. It's always the fps problem anyway, so it would only make sense to fix it here instead of butchering the audio.

Do I deserve a cookie for the innovative thought? ;)
(Prefer low-ftp cookies :D )

TRILIGHT
10th January 2003, 03:02
Don't know about this "(modification 1.86)" business. Those of us who do full disc backups utilize v1.76 that supports CLI via DoItFast4U! to save time. Even the other version I have that creates d2f files (but does not support CLI) does not contain a framerate selection. As such, ours is correct all the time. I do not see the need to have such a selection anyway. Perhaps it is for PAL users. Not sure. At any rate, I guess it's a good tip for anyone using that version. You're the only one I've heard of myself though. ;)