I'd like to help, as well as others, but could you be more specific about how you exported the movie? Specifically:
Maybe we can give some ideas with that information.
Did you export a movie at 12 fps from Dragonframe (or other frame grabbing software), or did you import the sequence of images in an editing program (like Premiere or Final Cut Pro) or in After Effects, then export a movie from there? What editing program are you using to put the sound track alongside the images?
Are they a little bit out of synch, or way out, like the pictures are playing twice as fast as the audio?
Do you have the audio loaded into Dragonframe so you can time your animation to it? (If you are using Dragonframe.) I'm guessing you are saying that it fits when animating, but goes out of synch when you put it into an editing program.
You probably need to go through each step, using what software, and the frame rate settings in each program, to work out what is happening and when. Someone may be able to duplicate it, if they have the same software, and figure it out.
sorry for respomding thank you guys for the replies i'm animating out of dragonframe at 12 fps and i just export movie from dragonframe then put that video in premiere pro with vocals from dragonframe.
Ok, that helps. I do it differently so I'm not sure at what stage it gets out of synch. Main difference is, I don't export movie from Dragonframe. Also, I don't animate at 12 fps, I mostly use 25 fps and sometimes 24. And i don't use Premiere Pro, I edit in Final Cut Pro 6. So, apart from using DF for capture, totally different!
I will go look at DF in my studio, try setting it to 12 fps, and exporting a movie, and see how that works. There may be a point where the frame rate is set differently that is easy to miss. I'll get back to you.
My process: I did a dozen taking shots with heaps of dialogue in Dragonframe for a short film, and had no synch problems. I loaded the audio wav files into DF, and animated to match. Then I imported the final images into TV Paint Animation to crop and re-size the images to HD 1920 x 1080. I saved as an uncompressed .mov file, and loaded that into Final Cut, because it doesn't like sequences of images - is Premiere the same? (Most of my software will load an image sequence the same as a movie file, but not Final Cut.) I load the same wav files into FC that I used in DF. I line the audio tracks up with the video, and once I get the positioning right, it synchs the same as it did in DF.
Ok, I animated a pterosaur (current animation job, not my film so I can't post it) talking to an audio file i had of Neil Gaiman saying "Hello... You're, you're doomed" at 12 fps. I exported the video to QT at 1920 x 1080, ticking the "pre-crop" box since it said there could be issues with cropping for QT. I included the audio track in the video. Normally I load audio separately into my editor, but this seemed the easy way, and most likely why you were doing.)
In Final Cut Pro, I started a new project. I couldn't select 12 fps, it isn't even an option, so I settled for 24 fps. I imported the video, and it played perfectly in synch, and at the correct speed.
So, I can't test it with Premiere Pro, but it worked fine with my editor, even though the frame rate was set to 24.
I wonder if this is the problem.... When I import an image sequence into After Effects (and this probably goes for Premiere too) it doesn't know what frame rate to ascribe, so generally puts it 30 FPS. You should check the framerate in the little footage box at the top when importing, and then it should load up at the correct speed.