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davidfreefly

SMOOTH SLOW MOTION??

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Hi friends,
I have bought a TRV 33, (before i had a panasonic nvgs1) My question is how to get a 100% smooth and clear slow motion for tandem videos. What kind of software do you use?
I have tried with pinnacle 9.. but results are not very smooth. ANY HELP PLEASE?

THANKSB|

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DAVID DOVAL
www.paracaidismogalicia.com

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Work in evenly divisible increments; 50%, 25%.

Without going to extremes of using After Effects or something similar, anything else just isn't going to look "right".

My guess is that for tandem videos you wouldn't have the time to deal with After Effects anyway.
quade -
The World's Most Boring Skydiver

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When you apply the slow motion effect, there -should- be a variable to tell it how slow you want the effect to be. That is normally, in most programs, expressed as a percentage of play speed.

100% would be normal play speed.
50% would be exactly half as fast.
quade -
The World's Most Boring Skydiver

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Hi friends,
I have bought a TRV 33, (before i had a panasonic nvgs1) My question is how to get a 100% smooth and clear slow motion for tandem videos. What kind of software do you use?
I have tried with pinnacle 9.. but results are not very smooth. ANY HELP PLEASE?

THANKSB|



Two cheap methods of slow motion:
1. Create two lines of the same vid, zoom in deep and offset one by half a frame. Some NLE's won't allow for this, but most will.
Switch field order of top track to "upper" and be sure field of lower track is set to "lower"" (default by nature of DV)
Slow track to desired speed.
Set opacity/transparency of upper track to 50%.
Slow bottom track to desired speed.
Render.

or, use Sony Vegas Movie Studio/Sony Vegas Professional, being sure "resample" is turned on. It does a great job of smooth slow mo down to about 20%. 39.00 with rebates for VMS at a lot of stores I've seen, they have a free demo.
In-camera slow-mo is pretty poor, due to the way the frames are read, so you'll need good software.

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I don't know the Pinaccle software but I know all the good editing softwares have the fallowing setting before you render the video: Field order A, Field order B, and Frame Based. Consumer video cameras are usally recording interlaced video, which is normally "A" or "Lower Field" (means the same thing)
So make sure your "Field Order" settings are maintained from the capturing all tha way through the rendering if you want to have a smooth slow motion effect.


BlueS!

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I don't know the Pinaccle software but I know all the good editing softwares have the fallowing setting before you render the video: Field order A, Field order B, and Frame Based. Consumer video cameras are usally recording interlaced video, which is normally "A" or "Lower Field" (means the same thing)
So make sure your "Field Order" settings are maintained from the capturing all tha way through the rendering if you want to have a smooth slow motion effect.
!



Blending the two as I've indicated above, is similar to a crude deinterlacing technique that works very well for slow mo. You are correct, of course, you need to maintain the LFF format of DV on output if that's what your acquisition was. Blending field order during editing isn't integral to the output format, unless your NLE forces LFF even when you specify UFF. If you converted only one instance of the vid to UFF only, you'd have horizontal artifacting on final render.

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But... What software are you using to do that?? i have no idea to do this witn pinnacle, what software do you use??



Sony Vegas (either professional or consumer version), Canopus Edius, Avid Express HD, Ulead Media Studio will all do this. Any software that can invert a field and allow you to offset a stream by half a frame will do it.
I use Sony Vegas and Avid for most of my work. Vegas has a unique resampling feature that's similar to much more high end compositing tools, and it makes for ultra smooth slo mo.

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Depending on how much time you have, Twixtor (from http://www.revisionfx.com) is quite an amazing tool to work with.

Next to pulling your 2 fields appart into 2 frames in one simple click, it also uses a combination of morphing and frameblending to create new inbetween frames..depending on your source-material (and your willingness to spend some time creating masks for your objects/background) results can be breathtaking...
JC
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I have some questions, please be so kind and answer them. I am using Premiere Pro 1.5.

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1. Create two lines of the same vid, zoom in deep and offset one by half a frame.



What do you mean with "zoom in deep" and how do you offset a line of vid by half a frame in Premiere Pro 1.5?

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Slow track to desired speed.

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Heh, just to confirm, both tracks should be set to the same speed, right?

Thank You very much :-)



Check out the site of the Fallen Angels FreeflY Organisation:
http://www.padliangeli.org

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I tested it this weekend, and am not quite sure about the results... DSE, pls tell me if i am doing it the right way:

1. put master video on line 1
2. put slave video on line 2, 1 frame after the master video
3. right click on slave video --> Field Options --> chech Reverse Field Dominance
4. slave video - effect controls in preview monitor - set opacity to 50%
5. render

One more thing: how do you do: To zoom, set your timeline to view 1 frame depth.

Thanks in advance :-)


Check out the site of the Fallen Angels FreeflY Organisation:
http://www.padliangeli.org

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If you use premiere pro, please dont waste your time!

Premiere pro's slowmo is already based on this technique.
The odd and even field are pulled apart, and deinterlaced to give you a slowmo. And when you go below 50%, frameblending (technicaly a fade between frames) is used to smooth the result (although that tends to get quite blurry, so staying within 50% is recomended)
You definately dont need to spend all the extra time trying to pull appart your fields, as thats already whats done automaticly when you just use the standard slowmo.

If you look at this video (where I went a little overboard with slowmos, especialy in the second part:P) its all standard premiere pro slowmos.

But some editing programs dont do any frame-blending (PinnacleStudio/FCP) and give you (when using 30 fps as a base) 15 fps video when you do a slowmo, with some horrible blending effects...and even a blind person would scream 'g*d that looks horrible'B|
THEN it IS definately worth spending the time pulling your fields appart to create new frames.

And if you REALLY want good slowmo's...go for a more advanced plugin (like Realsmart:Twixtor)
JC
FlyLikeBrick
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DSE, i did exactly the same as i described a few posts up, and my results can not compare to yours. Can you please confirm that i am doing it the right way?


Check out the site of the Fallen Angels FreeflY Organisation:
http://www.padliangeli.org

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I think this step is incorrect.
4. slave video - effect controls in preview monitor - set opacity to 50%
I believe it should be
4. Master video - effect controls in preview monitor - set opacity to 50%

I'm using Vegas and if I leave the upper video track at 100% you won't see the second track. you have to let the lower tracks bleed thru the upper track.

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I think this step is incorrect.
4. slave video - effect controls in preview monitor - set opacity to 50%
I believe it should be
4. Master video - effect controls in preview monitor - set opacity to 50%

I'm using Vegas and if I leave the upper video track at 100% you won't see the second track. you have to let the lower tracks bleed thru the upper track.



Bottom track should remain full opacity.

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Bottom track should remain full opacity.



That's how i do it, but still, the end video looks as if a track was faster than the other. I believe it's got to do with the fact that i don't know how to move the upper track half a frame forward. Does this have something to do with you saying: To zoom, set your timeline to view 1 frame depth?


Check out the site of the Fallen Angels FreeflY Organisation:
http://www.padliangeli.org

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