Jitter, jumpiness in Version 11 but not in 10

cspvideo wrote on 7/19/2012, 8:52 AM

I've iincluded three links of materials editted in either version 10 or 11 for comparison. Material recorded on a SONY PDW 700 XDCAM. By default HD video is 35 mbps, 1440 by 1080. There are options for a lower bit rate, but not a different picture size.

In Version 11 the slow motion effects where the camera is in motion show a jitter or jumpiness to the motion. It is not smooth. In Version 10 the same video edited the same way does not show that.

If I render the edited project out from version 10 to a YUV (AVI) file and import it into 11 and render it there is no jumpiness or jitter.

The YouTube descriptions tell you more about the technical specifics. In both setups for Vegas the properties conform to the project video. It is not the specific camera causing the problem. The videographer who shoots has two identical models and material from either camera does this. It also happens when the camera is set to SD, DVCAM mode.

1. Edited in Version 11, 64 bit, build 683.

2. Edited in Version 10, 64 bit build 783

3. Rendered in Version 11, 64 bit, build 683 but the video is the result of the editing in sample two above, rendered to YUV (AVI) and imported into 11 and then rendered.

Anyone have any ideas as to why this is happening?

Thanks.

Comments

malowz wrote on 7/19/2012, 9:20 AM

the video has its properties correctly identified on vegas?

are you using supersampling?

tried "force resample" in video properties?

cspvideo wrote on 7/19/2012, 9:25 AM

I've played with the sample rates by forcing resample and it has no impact. Also, I noticed that when YouTube encoded the version 10 test, the jitters show up. The original mp4 file on my computer is smooth.

malowz wrote on 7/19/2012, 9:33 AM

so, its a problem after you send to youtube? on the pc the video its fine?

so, maybe change your method of encoding to youtube. here on the forum there's a excellent method, utilizing hanbrake software for converting to h.264 for youtube, vimeo and such...

cspvideo wrote on 7/19/2012, 9:36 AM

The version 11 version is a problem everywhere. In Blu-Ray. In DVD form. On the computer. You name it.

The Version 10 version is a problem (apparently) on YouTube when re-encoded.

Here are URL's to versions with force resample in both 10 and 11....

11:

10:

malowz wrote on 7/19/2012, 9:53 AM

yeap... really ugly....

well, you doing it correctly...

only things left i believe its see if the export specs are the same between v10/v11, if your project is set to "best" quality rendering i believe...

o trying to render in another format, just to see if is really vegas processing that is causing this.

render to mp4 720p for example, directly from vegas, to see if the judder is still there.

cspvideo wrote on 7/19/2012, 9:56 AM

It isn't in version 10. It is in version 11.

I own a Canon 7d and also a JVC 750. I've done some tests this morning with those two cameras in both versions of the software and it is nice and smooth.

So, it is something between the SONY PDW 700 and Vegas 11. Odd since they are both SONY products but that is a fact and I cannot change it.

farss wrote on 7/19/2012, 10:13 AM

Looks a bit like a problem I had years ago with Vegas, in the middle of a shot it would flip field order. Only happened to Digibeta footage and only if captured via SDI using Vegas.
Capture with Ppro or BMD utility no problem, capture with Vegas and encode with Ppro no problem.
Best answer anyone could come up with at the time was it was due to a know issue in VFW that M$ never fixed and never will :(

Bob.

cspvideo wrote on 7/19/2012, 10:35 AM

Thanks to all for sharing.

I also shot some video with a different model SONY camera this morning, a PMW EX1. It is clean in either 10 or 11 with slow motion applied.

It is either some setting in the camera or something specific to that model camera. I wish I knew what, but I don't own it. I only edit material for that videographer.

cspvideo wrote on 7/20/2012, 7:53 AM

I think I found a solution. At least it is working for me right now.

By default the output codecs in Vegas 11 when rendering HD material (and maybe SD too but I have to check) are set to a progressive field order.

For this camera it works best to set it to upper field first for HD. Lower field first looks ok. There is no jitter, but upper looks better in terms of clarity.

If the field order is set to progressive the horizontal motion (panning) jitters and skips.

Laurence wrote on 7/20/2012, 11:04 AM

I would advise you to find an actual CRT monitor to double check your field order if you are guessing. Reversing the field order tends to look fine on a progressive monitor (most of them) but absolutely terrible on an interlaced display. There aren't many actual interlaced displays these days so it may be a bit of a trick finding one to test your footage.

cspvideo wrote on 7/22/2012, 4:41 PM

Thanks.