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Problem with slow motion in Vegas

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I've been very satisfied with Vegas for about a year but last year I had clips that I stretched out into slow motion look much worse and blurry than what they had before. Objects are basically ghosted in multiple areas on horizontal movement much worse than regular interlaced video. I'll try to post screenshots if I can. Does anybody have any idea what could be wrong?

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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Unfortunately, there's nothing "wrong". In order for video to be slowed down, extra frames must be generated. Vegas does this by blending the video of two adjacent frames together to make a new intervening frame. If you slow down the video by a small amount, it's not too bad, but the slower you go, the worse it gets (much like slowing down audio - which can cause distortion when used to an extreme.)

If you want GOOD slow motion from DV, then you should try Motion Perfect. This stuff is the bomb. Check out the samples and you'll see what I mean. You can slow video down to half or even quarter speed. You can email me at originaltrilogy at yahoo dot com if you have any questions about it.

<span class=“Italics”>MeBeJedi: Sadly, I believe the prequels are beyond repair.
<span class=“Bold”>JediRandy: They’re certainly beyond any repair you’re capable of making.</span></span>

<span class=“Italics”>MeBeJedi: You aren’t one of us.
<span class=“Bold”>Go-Mer-Tonic: I can’t say I find that very disappointing.</span></span>

<span class=“Italics”>JediRandy: I won’t suck as much as a fan edit.</span>

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That's true. I know what you mean about the distortion. Maybe I should have made this more clear. There has always been distortion when I made something in slow motion. The thing is, it is far worse at making the intervening frame than before this summer. For example, I re-rendered an avi file of a hockey game because I wanted to fix a few things and get an s-video capture from the Hi8 video. But I basically kept the slow motion replays exactly the same. The slow motion from the newer version is much more blurry and ghosted.

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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Then you might want what Resampling mode you are in for the project. Go under EDIT, and down to SWITCHES. I'm guessing you will be in "Smart Resample" mode. Switch it to "Disable" and see what happens.

*Resample*
(video only)
Select a radio button to determine how video frames will be resampled when the frame rate of a media file is lower than the project’s frame rate. This can occur either when the event has a velocity envelope or when the frame rate of the original media is different than the Frame rate setting on the Video tab of the Project Properties dialog.

With resampling, the intervening frames are interpolated from the source frames, much like a crossfade effect between the original frames. This may solve some interlacing problems and other jittery output problems.

*Smart resample*
Resampling occurs only when an event's calculated frame rate does not match the project frame rate and the project frame rate is 24 fps or greater.

The calculated frame rate takes into account any changes made to event speed with velocity envelope, playback rate, and undersample rate.

*Force resample*
The event is always resampled, regardless of its frame rate or the output frame rate.

*Disable resample*
No resampling


<span class=“Italics”>MeBeJedi: Sadly, I believe the prequels are beyond repair.
<span class=“Bold”>JediRandy: They’re certainly beyond any repair you’re capable of making.</span></span>

<span class=“Italics”>MeBeJedi: You aren’t one of us.
<span class=“Bold”>Go-Mer-Tonic: I can’t say I find that very disappointing.</span></span>

<span class=“Italics”>JediRandy: I won’t suck as much as a fan edit.</span>

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Thanks for that info. I know the options area you are talking about and I tried different settings with that but I really didn't know what any of them actually did. Now when I have a chance, I can give that a try.

But what does interpolated mean and is that different from interlaced?

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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Yes. Interlacing simply refers to even and odd-numbered lines being drawn on the screen at any one time. You won't see this effect on a computer monitor because they are progressive-scanning (all lines are drawn sequentially), but you will see it on an analog television. You may see it on a digital TV if it is in interlaced mode (720i or 1080i).

This is why you should test any final DVD projects on a TV screen, because despite how good your video looks on the computer, interlacing artifacts can seemingly be created out of thin air. (Which leads me to wonder - are you seeing these artifacts in Vegas, or are they suddenly appearing when you watch the video on TV? You said this was a recent change, so perhaps this is the cause?)

Interpolating simply refers to creating new frames/pixels/visual information in between existing frames/pixels/visual information. It can be used to create new scan lines in each frame, thus turning interlaced video into progressive video. (Speaking of which, you might want to look under PROJECT PROPERTIES for DEINTERLACE METHOD. Try setting that to "None" and see if it helps. Deinterlacing can actually make video look worse under many conditions.)

It can also be used to create new frames between frames, thus creating the impression of "slowing down" video. If you looked at the samples on the MotionPerfect website I mentioned, you will see some FANTASTIC examples of frame interpolation. This software is amazing!

BTW, if you really love this software, I highly recommend this book. It is my bible now. (There's an updated version for Vegas 6. I've not read this one, so I don't know what the differences are.) The book comes with a DVD full of project files, moving backgrounds, ACID audio loops, and all sorts of cool stuff. )

<span class=“Italics”>MeBeJedi: Sadly, I believe the prequels are beyond repair.
<span class=“Bold”>JediRandy: They’re certainly beyond any repair you’re capable of making.</span></span>

<span class=“Italics”>MeBeJedi: You aren’t one of us.
<span class=“Bold”>Go-Mer-Tonic: I can’t say I find that very disappointing.</span></span>

<span class=“Italics”>JediRandy: I won’t suck as much as a fan edit.</span>

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The problem has definitely been able to be seen on the computer and on a tv screen from the dvd. I know what you mean by the slowing down effect with deinterlacing. That has happened to me when I have rendered an avi file in progressive scan but the video clips being rendered were interlaced. Thanks a lot for the advice. Whenever I go back home and turn on Vegas, I'll actually know what all those options are doing rather than just taking a guess.

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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Well, I had a chance to try Vegas again. I disabled resampling and I think I set it to not deinterlace. It was a big and the raw clips in slow motion in the vegas timeline were fixed. However when I rendered them to an avi file the slow motion parts were much clearer but kind of jumpy. It's better but still not as good as it used to be before last summer. So I'm sort of baffled now.

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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What do you mean by "jumpy"? Do you mean there are jumps of movement between frames, or there is movement within the frame (interlacing artifacts.) When you turn off resampling, it does not interpolate the video (i.e. create new frames in between the existing frames, which is necessary to create the effect of slowing down video.)

Do you think you could send me some small snippets of your AVIs before and after you changed the settings? It would help if I could look at them.

BTW, I was doing some extreme slow motion for a recent project, and it looked really bad until I realized that some effects, like deinterlacing, won't show correctly unless you raise the render quality to GOOD or BEST. Up until I remembered this, it looked like Vegas wasn't deinterlacing at all. Deinterlacing the video helped when I rendered it out at full speed to a new AVI, and then slowed it down with Motion Perfect, which does a FAR better job of interpolating new frames to render slow motion video. (Vegas simply takes existing video information and offsets it slightly, resulting in ghosting or double images.) If you really want good slow motion, Motion Perfect is fantastic. The samples on their website will astonish you.

<span class=“Italics”>MeBeJedi: Sadly, I believe the prequels are beyond repair.
<span class=“Bold”>JediRandy: They’re certainly beyond any repair you’re capable of making.</span></span>

<span class=“Italics”>MeBeJedi: You aren’t one of us.
<span class=“Bold”>Go-Mer-Tonic: I can’t say I find that very disappointing.</span></span>

<span class=“Italics”>JediRandy: I won’t suck as much as a fan edit.</span>

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Basically, the movement of slow motion is not as smooth as before. That is what jumps. I don't think sceenshots could illustrate this problem. Turning off resampling was necessary to stop interlacing artifacts within a single frame, the problem I first wrote about. I do render in the BEST setting. It's as if the performance of the rendering software or interpolating has deteriorated over time, but a part of a computer can't degrade (like analog tape gets dirty or a car rusts), can it?

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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Try turning resampling back on, and see if you can repeat your first results.

BTW, how much are you trying to slow the footage down?

<span class=“Italics”>MeBeJedi: Sadly, I believe the prequels are beyond repair.
<span class=“Bold”>JediRandy: They’re certainly beyond any repair you’re capable of making.</span></span>

<span class=“Italics”>MeBeJedi: You aren’t one of us.
<span class=“Bold”>Go-Mer-Tonic: I can’t say I find that very disappointing.</span></span>

<span class=“Italics”>JediRandy: I won’t suck as much as a fan edit.</span>

Author
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I don't think turning smart resample back on will work but I will try it whenever I go back home. Various slow motion clips are at different speeds. I just stretched thrm out in the timeline, not by imputting a play back speed. I'd say they average about half speed.

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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"I don't think turning smart resample back on will work"

I'm just curious to know if resampling is what is causing the problem. I'm wondering which setting, in your eyes, produces the best results.

From my own experience, the slower the video speed, the worse the artifacts from resampling.

Did you ever try the Motion Perfect software?

<span class=“Italics”>MeBeJedi: Sadly, I believe the prequels are beyond repair.
<span class=“Bold”>JediRandy: They’re certainly beyond any repair you’re capable of making.</span></span>

<span class=“Italics”>MeBeJedi: You aren’t one of us.
<span class=“Bold”>Go-Mer-Tonic: I can’t say I find that very disappointing.</span></span>

<span class=“Italics”>JediRandy: I won’t suck as much as a fan edit.</span>

Author
Time
I'm pretty sure the double ghosting image was caused by resampling because when I disabled it, the picture merged together and looks fine in the vegas program. The jumpiness only occurs in the rendered avi file. I just looked at the motion perfect samples and I think I'll consider purchasing it when I go home for the summer. Can motion perfect help with the kind of frame correction you're doing for the X0 project. And if you're using something more advanced, would it still help some?
One other question. Are there any ways to reduce the amount of dropped frames? I get way to many frame drops at a vhs vcr rainbow edit. Worse, I often get this huge 30 min amount of black empty space placed between a frame drop of 30 frames at the most. It's such a pain to cut and bring the working video parts together. Sometimes when I capture a scene of a longer video that dropped frames before, less will be dropped. Why is that?

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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"Can motion perfect help with the kind of frame correction you're doing for the X0 project. And if you're using something more advanced, would it still help some?"

Actually, I'm not using Motion Perfect for the X0 Project, because we aren't slowing any footage down (how many people know how many slo-mo scenes are actually in the OT? )

"One other question. Are there any ways to reduce the amount of dropped frames? I get way to many frame drops at a vhs vcr rainbow edit. Worse, I often get this huge 30 min amount of black empty space placed between a frame drop of 30 frames at the most."

I'm not sure what's creating the 30-min space, but I don't capture with Vegas. I downloaded the Standalone Mainconcept encoder, and found that that program gives me the best captures with no drops. Now, this is in regards to anything non-DV (i.e. capturing from a VCR.) You should try a variety of programs to see what gets you the best result.

When capturing from my mini-DV camcorder, I do use Vegas, but I don't get dropped frames. When you are capturing video from any source, you need to make sure all resources are available, and that you have plenty of memory and hard disk space. Set up the capture process, and LEAVE THE COMPUTER ALONE!

If you continue to get dropped frames, you might want to reboot your computer, and then go into msconfig.exe and turn off unnecessary programs.

<span class=“Italics”>MeBeJedi: Sadly, I believe the prequels are beyond repair.
<span class=“Bold”>JediRandy: They’re certainly beyond any repair you’re capable of making.</span></span>

<span class=“Italics”>MeBeJedi: You aren’t one of us.
<span class=“Bold”>Go-Mer-Tonic: I can’t say I find that very disappointing.</span></span>

<span class=“Italics”>JediRandy: I won’t suck as much as a fan edit.</span>

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Most of my captures are from analog video, either vhs or Hi8 from a sony Hi8 camcorder. I have plenty of memory on the computer although both hard drives (120/250 gb) are roughly 3/4 full, all with video. And I have about 16 single layer data disc dvd's of raw video capture files. This is so I can save the complete raw captures for a later possible use without having them take valuable hard drive space. I use a custom assembled computer that was designed specifically and exclusively for video editing. I don't use it for anything else, it doesn't even have an internet connection. I don't know what you mean by LEAVE THE COMPUTER ALONE, you mean don't open up any other applications or programs? Like I said there's nothing else to do with it.
When you mentioned to have plenty of hard drive space, why is that? I mean sure you need enough to store the video you're capturing but is there a further advantage to having hard drive space well beyond what you need? Would a computer with a less full harddrive perform better such as not drop so many frames or resample slow motion much better? It does seem that it has gradually dropped more and more frames recently so this would make sense.

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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On the heard drive space issue; you need some space at least for the page file and some applications that take up hard drive space while they run. It sounds like you have enough space to rule those issues out though. A defragmentation should help somewhat in regards to the hard drive's free space. I am no good at explaining technical stuff, so if you don't know how to defrag, what it does and why - then hopefully someone else can hop in and explain.

To contact me outside the forum, for trades and such my email address is my OT.com username @gmail.com

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Yes, the more disk space, the better, because Windows uses hard disk space as extended memory. It looks like you have two hard drives, so it would benefit you to capture video to the second, non-system drive (the one you don't boot to.) This way, when Windows writes to its own system files, the reading/writing doesn't interfere with the writing of the video capture files - which has to be done in real time.

<span class=“Italics”>MeBeJedi: Sadly, I believe the prequels are beyond repair.
<span class=“Bold”>JediRandy: They’re certainly beyond any repair you’re capable of making.</span></span>

<span class=“Italics”>MeBeJedi: You aren’t one of us.
<span class=“Bold”>Go-Mer-Tonic: I can’t say I find that very disappointing.</span></span>

<span class=“Italics”>JediRandy: I won’t suck as much as a fan edit.</span>

Author
Time
It appears that my firewire card died. The computer can't find the "microsoft dv camera and vcr" external capture device anymore. The capture device is a pyro a/v converter from ADS technologies. The firewire card is also from ADS.

What is the best firewire card to get and/or is there a really good one under $50? Especially one that doesn't drop a lot of frames with analog captures. I was reccomended the Belkin PCI to 1394a card model FSU502. It's $38 on newegg, is that a good product/price?

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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I bought a cheap-ass no-name Firewire to PCI card at CompUSA for like $20, and have not had one single problem with it. I have downloaded well over a terabyte of DV video from my camera with this card.

BTW, if you are still having difficulties capturing, there are two other possible options.

1) My camcorder has a feature named something like "video pass-through" (I'll have to look it up), where I can plug in an analog source to the camcorder, and the camcorder converts the incoming signal to DV video, and transfers it to the computer via firewire in real time. This is handy for when I just want a quick capture and the video I am capturing doesn't have to be of the best quality (HuffyUV versus the DV codec).

[EDIT] The video pass-through function is called "Signal Convert".

The other bonus of this method is that the audio and video are ALWAYS in perfect sync. (Sometimes, I will do two captures. One using this method with audio/video, and one using my video capture card and audio, and then I can compare all 4 tracks in Vegas, using the DV capture as a baseline. Gobs and gobs of hard drive space make this possible )

2) Connect your analog source to the camera, and record directly to tape. Then, plug the camera into the firewire card and capture the DV video from the tape. I mention this because I've had virtually zero problems capturing video from my camcorder into Vegas, and if your camcorder doesn't have the video-pass through feature, then you can use this two-step method to get the same effect.

<span class=“Italics”>MeBeJedi: Sadly, I believe the prequels are beyond repair.
<span class=“Bold”>JediRandy: They’re certainly beyond any repair you’re capable of making.</span></span>

<span class=“Italics”>MeBeJedi: You aren’t one of us.
<span class=“Bold”>Go-Mer-Tonic: I can’t say I find that very disappointing.</span></span>

<span class=“Italics”>JediRandy: I won’t suck as much as a fan edit.</span>

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I have 1,750 GBs, almost 2 terabytes of storage. (I'm a bit of a pack-rat. My 400GB drive is full of family videos that I've not had time to convert to DVD - some are 3-4 years old. )

If your Hi8 has video out (most cams do), and your camcorder has video in (depends), then it's possible.

<span class=“Italics”>MeBeJedi: Sadly, I believe the prequels are beyond repair.
<span class=“Bold”>JediRandy: They’re certainly beyond any repair you’re capable of making.</span></span>

<span class=“Italics”>MeBeJedi: You aren’t one of us.
<span class=“Bold”>Go-Mer-Tonic: I can’t say I find that very disappointing.</span></span>

<span class=“Italics”>JediRandy: I won’t suck as much as a fan edit.</span>

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Time
I just checked, my Canon miniDV does Not have video in. As if it wasn't useless enough already. It's by far the worst video camera I have. The digital noise in the image is atrocious, especially in less than broad daylight. That and the digital compression offsets any supposed gain in resolution DV gets you. The colors aren't too accurate, they're a bit muddied with low contrast. The image stabilization is non existant. The auto focus isn't much better, it has everything in the same depth so your eye has trouble knowing whether to focus on the blurry noise filled basketball player or the crowd behind him.
My Sony 8mm from '97 has professional color quality, even I have trouble distinguishing it from 3ccd miniDV. I have a very similarly good Sony Hi8 xr from '98. The most important thing is a clean, clear picture without noise artifacts, with accurate vibrant colors and a good exposure that produces a natural image. Lines of resolution isn't nearly as important as those other aspects.

End of rant. Trust me, you'd be pretty pissed off (even after 2 years) if you spent $700 for a PoS that should have cost half that and really wasn't even worth $200.

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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before

[url=http://www.uploadfile.info]http://www.uploadfile.info/uploads/d7696e77f2.jpg[/url]

after

[url=http://www.uploadfile.info]http://www.uploadfile.info/uploads/39709e3e73.jpg[/url]

resample disabled

[url=http://www.uploadfile.info]http://www.uploadfile.info/uploads/5ea9706bff.jpg[/url]

Although the first two shots are motion blurred, the second one looks a lot worse, especially in motion. The first one has a soft blur that looks natural for the slow motion but the second plays very jarring and garbled. These are from rendered avi files. The capture source is a vhs tape. As far as I know the vegas settings are the same so I don't know how the resampling got worse.

Take back the trilogy. Execute Order '77

http://www.youtube.com/user/Knightmessenger

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Looks to me like you need to change your project settings to Progressive Scan. There is a whole lot of interlacing happening in those images.