There a nice batch of plugins but you really want to be doubling the frame rate with a motion adaptive plugin e.g. double NTSC(59.8) or PAL(50) to get nice animation for scratching.

I find it much better to use none interlaced footage with most modern projectors. Or else you can end up with horrible broken lines. Even if your using properly interlaced footage on an older projector you can still get nasty field lines as the resolution of your video file doesn't match the resolution that your outputting...

So defo use it to de-interlace images. But you don't really want to be lowering the frame rate of your footage.

Taking filmed footage from 30 to 24 isn't necessarily lowering the frame rate, it's just getting back to the source rate. We were talking about it here:

www.scratchlive.net

+1

never lower the framerate of your footage, it will get jerky. if anything you want to double the framerate, especially if you're looking to slow down your footage at all.

24p looks good because it was shot that way.

29.97 will look good deinterlaced at the same framerate, or doubled but not lowered to 24p (unless it was orginaly shot at 24p and pulled to 29.97, but that's a whole nuther conversation).

most music videos originate as video, not film. most music videos will be natively shot at broadcast framerates.

is doubling the frame rate the way they get that slowed down effect but the actions still match the audio. I seen one time where they shot the video faster so when they slowed it down it still matched up the audio. Is that the same thing?

yeah, this is a tricky effect to get right. check the madonna video "cherish", i think this is what you're talking about. the performer looks like they are moving and talking in slow motion but the words match the song perfectly.

my guess is there are a few things they are doing to achieve this effect. one is to shoot at 2x the target framerate and then half it on playback. the other involves something like removing every other frame and doubling the remaining frames.

i've been told the strobe effect in fcp can do this look but I've never been able to get it to look right. i just learned of a way to do it in shake that i'm looking to try out. stuff like this should be easier in shake.

where did you learn the way in shake from. I would like to look more into it.

amazon.com. Encyclopedia of visual effects. It's actually a one liner I could post here. Use a TimeX node and the formula is

Time(floor/2)*2

That's from memory (I am at the coffee shop right now). I'll look it up for real when I get home.

werd

i saw some behind the scences footage of this being done. Basically the artist would lip sync to the music, which was played back a lower speed/pitch. They would obviously speed up the video in post-production to match the correct speed of the song afterwards

yeah, the madonna video show the effect on point. you see the waves and water she is splashing in, moving in slow motion and so is she but her lip sync is dead on. obviously waves in the ocean can't splash in slow motion so the had to shoot the footage sped up, which means the song she was lip syncing to on set was sped up tremendously also. i think they also did some frame doubling tricks to enhance the effect. a cool effect no doubt.

Why do we want to double the framerate? (not trying to be a smart ass - this is a serious question)

if you've ever tried to slow down footage, you'll notice it gets mad jerky. the way around that is to double the framerate in a program like compressor, motion or shake. the optical re-flow will "create" new frames between the old frames. these new frames are pixel by pixel motion estimated frames that are completely fabricated from neighboring frames.

the result is, now i have twice as many frames as before. i can do my slow motion effect and it will look smoother than before because i have twice as many frames to achieve the same effect. without optical re-flow building new frames, FCP really just repeats the correct number of frames in order to get the footage to fit the slow motion effect you're trying to do, hence the jerkiness. frame doubling and optical reflow is the key to getting a good effect that looks smooth with no jerking.

Ah! I think I misunderstood the purpose of this thread.

So this is a kind of interpolated frames? Does it really work?

dude, optical flow is the business. if you don't know you best try it out.

oh and that dudes original post i quoted was about getting smooth animation for scratching video. frame doubled content will look smoother and more detailed. that's what he was talking about. my main purpose for doubling is extreme slow motion though,