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Altering frames per second in project, keeping audio in sync
Posted: Mon Apr 01, 2013 9:42 pm
by SpaceBoy64
I recently started working on an animation and I just started with the default settings, not thinking much about it. 24 fps was okay with me at the time, but now that I want to edit, it's not acceptable.
I just started using Lightworks to do my editing. Lightworks doesn't have a 24 fps option, so none of my animation can be used as is. When I change the project settings to 30 fps, the audio falls out of sync. Is there a way to change this easily?
Re: Altering frames per second in project, keeping audio in
Posted: Tue Apr 02, 2013 2:36 am
by slowtiger
(You shouldn't use any application which only allows you one fixed frame rate.)
You can easily change the FPS rate in AS' project settings, but then your animation will play faster or slower than intended. To correct this, you can either move keyframes by hand, or use the "Recompute kexframes" option from the menu. See manual.
Before you do this, you need to open all your files in their original FPS setting and write down their length - the timeline shows you the seconds, then count the remaining frames and calculate what their equivalent would be in the new FPS setting.
Re: Altering frames per second in project, keeping audio in
Posted: Wed Apr 03, 2013 1:29 pm
by SpaceBoy64
Did not no about the re-compute keyframes option. Thanks!
I moved the keyframes by hand. Luckily for the second part of the animation I had set everything correctly.
Here is the final result:
http://www.youtube.com/watch?v=FUe1VqqMwkw
Re: Altering frames per second in project, keeping audio in
Posted: Thu Apr 04, 2013 6:16 pm
by SpaceBoy64
slowtiger wrote:(You shouldn't use any application which only allows you one fixed frame rate.)
That isn't the case exactly. It only allows standard frames rates for video. 24 fps is not one of them. There probably is some way to convert it using 3:2 pulldown, but I couldn't find it. It is an application that's been used for many Hollywood films, so there must be something I overlooked, but it wasn't that hard to fix my animation. Now that I have a clear pipeline for animating, it won't be an issue in the future.
Re: Altering frames per second in project, keeping audio in
Posted: Fri Apr 05, 2013 12:41 am
by slowtiger
It only allows standard frames rates for video. 24 fps is not one of them.
This is not true. Any professional editing software should at least offer you basic frame rates of 24, 25 and 30 FPS. 24 is film, 25 and 30 are TV.
Re: Altering frames per second in project, keeping audio in
Posted: Fri Apr 05, 2013 1:04 pm
by SpaceBoy64
Well, maybe I'm wrong about that. I think I had just set my project settings to 29.97 fps, and therefor It wouldn't allow me to use footage at 24 fps.
http://www.lwks.com/index.php?option=co ... Itemid=184
But , hey, it's free, so I can't complain. It wasn't that difficult to fix.