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Best way to convert 30p to 23.976 ?
Hello all!
I’m making a reel of my Steadicam & Jib work I’ve done over the last year. Problem is some of my clients shot in 30p, some shot in 23.976.
Most of it was shot in 23.976 so I created my project in that frame rate. When I converted the 30p to 23.976 footage within Vegas I tried several methods, including disable re-sample. None seem to work flawlessly, they seem to end up stuttering, due to dropping frames I suspect? So I thought what about taking the 30p footage in the 30p timeline & rendering it out to a JPEG sequence then take all the JPEG’s & place them into the 24p timeline. I understand this will make the footage 20% slower which is fine, & my thinking was well there won’t be no dropped frames, how could there be a better way ?Now that my reel is finished & rendered to 23.976 the places where I did this seems to lack something ? It just doesn’t look right ? Still has a chop look & not smooth & fluent, this is the best I can describe the artifact. At 3;30 seconds in my link I am providing, you can see the father & daughter dancing with me on my Steadicam, this is a great shot that I want to look the best I can in the conversion process but how ?
What would be the best way for me to convert my 30p footage to 23.976
I also have A.E. CS5 I’ve heard little on Magic Bullet frames & frames plus, what would be best ?IS THERE A SOLUTION ? keep in mind with motion due to Steadicam & jib moving.
Thanks to all for the help. -
5 Replies
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[Shawn Bossick] “When I converted the 30p to 23.976 footage within Vegas I tried several methods, including disable re-sample. None seem to work flawlessly, they seem to end up stuttering, due to dropping frames I suspect?”
Yes that’s because you disabled resample so Vegas was not allowed to make smooth motion and it was forced to just drop frames which made the motion jerky. Did you try it with resample on? That should give you much smoother 23.976 video from 30p.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Hi John!
Thanks for responding! Yes I tried it with resample on as well.
If the footage was shot in 30p progressive mode & not 60i, when I convert the 30p to 23.976 wouldn’t Vegas drop frames in-order to get the footage to 23.976 ? Or does it keep all the frames & is able to blend fields together ? Being I shot it in progressive mode I didn’t think that was possible ?
I’m not real educated in this area though so I’m asking.
question 2 was my thinking wrong in converting the files to a JPEG sequence so there weren’t going to be dropped frames ? since the footage was going to be mixed down to progressive I thought that would work ? But it doesn’t look right ?
How would you convert it John ?
Thanks again!!
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[Shawn Bossick] “If the footage was shot in 30p progressive mode & not 60i, when I convert the 30p to 23.976 wouldn’t Vegas drop frames in-order to get the footage to 23.976 ? Or does it keep all the frames & is able to blend fields together ? Being I shot it in progressive mode I didn’t think that was possible ?”
Vegas will perform Inverse Telecine on the footage to go from 29.97 to 23.976. Obviously it can’t use fields for footage that was shot progressively but it will still blend frames which will look smoother than dropping frames.
[Shawn Bossick] “question 2 was my thinking wrong in converting the files to a JPEG sequence so there weren’t going to be dropped frames ? since the footage was going to be mixed down to progressive I thought that would work ? But it doesn’t look right ?”
The only thing that would have been affected is the motion. Obviously it’s playing 20% slower so maybe that is what’s not looking right.
[Shawn Bossick] “How would you convert it John ?”
One option is to keep resampling on and let Vegas smooth the motion. If you are not happy with that, another option is to use a plug-in like BCC Optical Flow which is part of Boris Continuum Complete and set the Velocity to 80 which will make it play 20% slower while calculating motion vectors instead of just blindly blending frames. Twixtor is another product that will re-time footage and it does an excellent job as well.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Thanks John! Very nice of you to answer all my questions!!
[John Rofrano] “The only thing that would have been affected is the motion. Obviously it’s playing 20% slower so maybe that is what’s not looking right.”
Really, hmmm that should have worked then ?
I have twixtor, so are you saying just take the 30p footage, drop it into my 23.976 timeline apply twixtor then set velocity to 80% & that’s it ? Done ?
Last question being that I shot it in progressive mode after reviewing your responses, the JPEG or TIFF actually sounds like that would be the best conversion IF I don’t mind the 20% slowing down factor.
Again John thank you, Ive been on & off this forum for years now & you have helped me several times, THANK YOU !!
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[Shawn Bossick] “I have twixtor, so are you saying just take the 30p footage, drop it into my 23.976 timeline apply twixtor then set velocity to 80% & that’s it ? Done ?”
Yes, and make sure Disable Resample is ON so Vegas doesn’t try and resample the frames. That should do it.
[Shawn Bossick] “Last question being that I shot it in progressive mode after reviewing your responses, the JPEG or TIFF actually sounds like that would be the best conversion IF I don’t mind the 20% slowing down factor.”
Yes, that would avoid any frame blending. I would use the PNG sequence to keep the quality high.
[Shawn Bossick] “Again John thank you, Ive been on & off this forum for years now & you have helped me several times, THANK YOU !!”
You’re very welcome Shawn. I’m glad I could help.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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