Converting 30fps to 24fps? at DVinfo.net

Kevin Maistros · January 18th, 2004, 05:27 PM

Is there any existing software to convert 30 to 24? If there is, would someone please post a link to where it may be found/purchased?

Don Donatello · January 18th, 2004, 06:33 PM

most NLE's should be able to take 60i/30p to 24fps but will it do a good job ?? you'll have to test them out. Vegas can take 30fps to 24 fps .. the BIG problem is if you shot 30P or frame mode - the problem is more with 30progressive( frame mode) and not the NLE... 60i to 24fps will come out far better then 30p to 24fps.

Kevin Maistros · January 18th, 2004, 11:56 PM

I'm just most interested in converting my XL-1s (frame mode) footage to 24fps. Vegas can smart drop frames to make it 24fps, or will it just slow the footage down?

How would I do this in Vegas?

Frank Ladner · January 19th, 2004, 02:57 PM

I shoot in Frame Mode with my GL2 and convert to 24p using an After Effects plugin called Twixtor. The footage is rendered as an uncompressed AVI and brought back in to the NLE to be rendered with 3:2 pulldown. (You could possibly precomp this in AE, but I feel better about rendering out in separate steps.)
This plugin does an excellent job at converting framerates. John Jackman (I think) commented on it in the DV magazine some time back, in an article about film look.

Theoretically, it may be better to shoot with 60i on the GL2 and then go from that to 24p in Twixtor (setting twixtor to INPUT 60i ->lower field and OUTPUT to 24p -> no fields)

Anyhow, with 30p on the GL2 (and there are some valid arguments about the green channel shifting method on the fields to achieve the not-quite-true-progressive frames) and converting to 24p in Twixtor, the look - in my opinion - is outstanding.

About Twixtor:
http://www.revisionfx.com/rstwixtor.htm

How to get the 'film look' using Twixtor:
http://www.revisionfx.com/generalfaqsfilmlook.htm

Hope this helps!

,Frank

Don Donatello · January 19th, 2004, 10:07 PM

Vegas drops frames to get it to play back at 24fps.

link info on progressive and frame mode
ftp://ftp.panasonic.com/pub/Panasoni...ressive-WP.pdf

Peter Richardson · January 20th, 2004, 05:26 PM

I have a similar problem. I'm editing a project on Avid Xpress Pro that has ftg I shot with the DVX100 on advanced mode. I'm using a 23.98 timeline, but unfortunately in a couple instances I forgot to put the cam in advanced and shot in standard, so now I'm trying to convert this 60i ftg into 24P ftg. Would twixtor be my best bet to convert this ftg into 24f? Thanks!

Peter

Frank Ladner · January 20th, 2004, 08:56 PM

Peter: Take a look at this review:
http://www.creativecow.net/articles/...wixtor_review/

That should help you. One of the guys in the article suggests using FieldsKit (from the makers of Twixtor) to deinterlace your 60i footage, giving you full 29.97, and then take that to 23.98 with Twixtor.

I haven't used Magic Bullet or DV Film Maker (called something like that), but maybe somebody else could comment on them.

hope this helps.

,Frank

Peter Richardson · January 21st, 2004, 12:21 AM

thanks Frank, I will check it out.

Peter

Peter Richardson · January 21st, 2004, 11:21 AM

Hey Frank--That plugin looks to be just what we need! I've been searching forever for something that will do the job and you found it. Thanks a bunch for the recommendation.

peter

Frank Ladner · January 21st, 2004, 11:28 AM

Great! Glad I could help!
I'd like to hear how it works out for you.

,Frank

Kevin Maistros · January 21st, 2004, 12:13 PM

I thank you all for your advice. I used the Vegas method.

You can see what was made, here: http://www.dvinfo.net/conf/showthrea...threadid=20155

Mark Jefferson · January 21st, 2004, 03:01 PM

Are you looking for a "film-like" look, or are you trying to go truely 24fps? The reason I ask is AE does a pretty good job with posterizing time. The video is still 29.975 fps, but it has the motion clarity of film. Check out:

http://www.dvinfo.net/articles/filmlook/broadway1.php

It's good info on film motion.

Cheers,
Mark

Frank Ladner · January 21st, 2004, 08:46 PM

Kevin: That looks good! I like the motion/look. (I couldn't hear what they were saying, though, because I was watching it on a server w/o a sound card.)

,Frank

January 18th, 2004, 05:27 PM	#1
Kevin Maistros Regular Crew Join Date: May 2003 Location: Cleveland, OH Posts: 129	Converting 30fps to 24fps? Is there any existing software to convert 30 to 24? If there is, would someone please post a link to where it may be found/purchased?

January 19th, 2004, 02:57 PM	#4
Frank Ladner Major Player Join Date: Aug 2003 Location: Poplarville, MS Posts: 453	Twixtor I shoot in Frame Mode with my GL2 and convert to 24p using an After Effects plugin called Twixtor. The footage is rendered as an uncompressed AVI and brought back in to the NLE to be rendered with 3:2 pulldown. (You could possibly precomp this in AE, but I feel better about rendering out in separate steps.) This plugin does an excellent job at converting framerates. John Jackman (I think) commented on it in the DV magazine some time back, in an article about film look. Theoretically, it may be better to shoot with 60i on the GL2 and then go from that to 24p in Twixtor (setting twixtor to INPUT 60i ->lower field and OUTPUT to 24p -> no fields) Anyhow, with 30p on the GL2 (and there are some valid arguments about the green channel shifting method on the fields to achieve the not-quite-true-progressive frames) and converting to 24p in Twixtor, the look - in my opinion - is outstanding. About Twixtor: http://www.revisionfx.com/rstwixtor.htm How to get the 'film look' using Twixtor: http://www.revisionfx.com/generalfaqsfilmlook.htm Hope this helps! ,Frank

January 18th, 2004, 06:33 PM	#2
Don Donatello Hawaiian Shirt Mogul Join Date: Nov 2001 Location: northern cailfornia Posts: 1,261	most NLE's should be able to take 60i/30p to 24fps but will it do a good job ?? you'll have to test them out. Vegas can take 30fps to 24 fps .. the BIG problem is if you shot 30P or frame mode - the problem is more with 30progressive( frame mode) and not the NLE... 60i to 24fps will come out far better then 30p to 24fps.

January 18th, 2004, 11:56 PM	#3
Kevin Maistros Regular Crew Join Date: May 2003 Location: Cleveland, OH Posts: 129	I'm just most interested in converting my XL-1s (frame mode) footage to 24fps. Vegas can smart drop frames to make it 24fps, or will it just slow the footage down? How would I do this in Vegas?

January 19th, 2004, 10:07 PM	#5
Don Donatello Hawaiian Shirt Mogul Join Date: Nov 2001 Location: northern cailfornia Posts: 1,261	Vegas drops frames to get it to play back at 24fps. link info on progressive and frame mode ftp://ftp.panasonic.com/pub/Panasoni...ressive-WP.pdf

January 20th, 2004, 05:26 PM	#6
Peter Richardson Major Player Join Date: Mar 2003 Location: Portland, Oregon Posts: 608	I have a similar problem. I'm editing a project on Avid Xpress Pro that has ftg I shot with the DVX100 on advanced mode. I'm using a 23.98 timeline, but unfortunately in a couple instances I forgot to put the cam in advanced and shot in standard, so now I'm trying to convert this 60i ftg into 24P ftg. Would twixtor be my best bet to convert this ftg into 24f? Thanks! Peter

January 20th, 2004, 08:56 PM	#7
Frank Ladner Major Player Join Date: Aug 2003 Location: Poplarville, MS Posts: 453	Peter: Take a look at this review: http://www.creativecow.net/articles/...wixtor_review/ That should help you. One of the guys in the article suggests using FieldsKit (from the makers of Twixtor) to deinterlace your 60i footage, giving you full 29.97, and then take that to 23.98 with Twixtor. I haven't used Magic Bullet or DV Film Maker (called something like that), but maybe somebody else could comment on them. hope this helps. ,Frank

January 21st, 2004, 12:21 AM	#8
Peter Richardson Major Player Join Date: Mar 2003 Location: Portland, Oregon Posts: 608	thanks Frank, I will check it out. Peter

January 21st, 2004, 11:21 AM	#9
Peter Richardson Major Player Join Date: Mar 2003 Location: Portland, Oregon Posts: 608	Hey Frank--That plugin looks to be just what we need! I've been searching forever for something that will do the job and you found it. Thanks a bunch for the recommendation. peter

January 21st, 2004, 11:28 AM	#10
Frank Ladner Major Player Join Date: Aug 2003 Location: Poplarville, MS Posts: 453	Great! Glad I could help! I'd like to hear how it works out for you. ,Frank

January 21st, 2004, 12:13 PM	#11
Kevin Maistros Regular Crew Join Date: May 2003 Location: Cleveland, OH Posts: 129	I thank you all for your advice. I used the Vegas method. You can see what was made, here: http://www.dvinfo.net/conf/showthrea...threadid=20155

January 21st, 2004, 03:01 PM	#12
Mark Jefferson Regular Crew Join Date: Jul 2003 Location: Collinsville, Illinois Posts: 86	Are you looking for a "film-like" look, or are you trying to go truely 24fps? The reason I ask is AE does a pretty good job with posterizing time. The video is still 29.975 fps, but it has the motion clarity of film. Check out: http://www.dvinfo.net/articles/filmlook/broadway1.php It's good info on film motion. Cheers, Mark

January 21st, 2004, 08:46 PM	#13
Frank Ladner Major Player Join Date: Aug 2003 Location: Poplarville, MS Posts: 453	Kevin: That looks good! I like the motion/look. (I couldn't hear what they were saying, though, because I was watching it on a server w/o a sound card.) ,Frank