24 fps vs 30 fps

mercythrill · Post by **mercythrill** » Thu Jan 17, 2008 3:48 pm

Oh. Wait. Found something.

Quoted from here:
http://forum.doom9.org/showthread.php?t=133764

"I have an NTSC DVD, the Japanese version of Advent Children. I rip the entire main movie to VOB using DVD Decrypter. So this creates a VOB that is technically 23.976 frames per second. But as I understand it, because of pull down, on the final DVD this would play back at 29.97 frames per second."

Something new to research. Yay. (Man, hats off to you guys who understand all this stuff. This is serious business, yo.)

YouTube · Post by **Kionon** » Thu Jan 17, 2008 4:28 pm

dreamcatcherr wrote:Oh. Wait. Found something.

Quoted from here:
http://forum.doom9.org/showthread.php?t=133764

"I have an NTSC DVD, the Japanese version of Advent Children. I rip the entire main movie to VOB using DVD Decrypter. So this creates a VOB that is technically 23.976 frames per second. But as I understand it, because of pull down, on the final DVD this would play back at 29.97 frames per second."

Something new to research. Yay. (Man, hats off to you guys who understand all this stuff. This is serious business, yo.)

29.97 is usually standard. I try to make sure my final product is 29.97, and I always export out of Premiere in 29.97. I edit it in as well. I upload to the tube in 29.97, it's close enough.

My suggestion would be to, instead of baiting and switching with the vob itself, DGINDEX your vob, drop the AVS file onto the timeline, and adjust it, edge by edge if you have to, until all the timing matches up again. Continue to edit from there. I highly doubt you'll harm the quality. If necessary, just have avisynth change the framerate internally.

The tube has sync issues, period. No way around it. Just accept it.

mercythrill · Post by **mercythrill** » Thu Jan 17, 2008 6:57 pm

I was having trouble bringing the avs in to Premiere. Kept getting "File format not supported/One of the necessary components may not have been installed".

I tried downloading this plugin: http://urchin.earth.li/~tomford/avisynth/index.html but it didn't fix the problem.

So I made a full-blown AVI and switched that in but the timing is too far off to make it viable. I'd be there for days just trying to find out what the clip was supposed to be referencing. (They're off by as much as 8-12 seconds in some case.)

I researched to see if it was a telecine problem, but since my film is supposedly all progressive, I shouldn't have to do anything that way.

But I'll definitely do the .avs trick for future projects. Thanks.

gerber2022 · Post by **gerber2022** » Fri Mar 14, 2008 11:50 pm

well i try to keep the video as orignal as i can what i do is in dgindex is first preview the film and if it says 16:9 interlaced 29.97fps i try to keep it in 29.97
by saving it in raw encoded frames so i would just go with what the dvd has to that movie

the Black Monarch · Post by **the Black Monarch** » Mon Apr 14, 2008 11:22 pm

Edit natively in 24 (or 23.976), then run it through TMPGEnc with a 3:2 pulldown flag. If you're working with low-res footage where the scanlines would be big and annoying as hell, and you're not making a VCD, then take that MPG file and resize in Vdub to make the scanlines less pronounced.

Or just don't use Boochsack, and put it up on the Youtubes.

Or go with decimate(5) followed by assumeFPS(29.97) in AVIsynth, and edit with that.

I prefer the latter two options. The first one is really only useful if you're making a VCD; blended scanlines are still annoying and they drive MPEG crazy.