when i import video files it makes them jerky

st3v3nbakker3 · Post by **st3v3nbakker3** » Fri Apr 20, 2007 9:31 am

Whenever I import a video clip into a project on ulead video studio 10 it goes jerky. Even with high quality playback mode enabled

Black Lab · Post by **Black Lab** » Fri Apr 20, 2007 1:11 pm

Sounds like it could be a field order problem. Your project's field order (lower or upper) must match your clip's. DV video is generally lower field first, and analog is generally upper field first. Check your project properties at File > Project Properties > Edit Tab > General Tab.

nealenapier · Post by **nealenapier** » Fri Apr 20, 2007 1:33 pm

It may be just a problem with the PC struggling to render it real time. Or it may indeed be a problem. Are you importing DV from your camcorder?

I had jerky footage when I actually created the DVD. You might want to look at this link http://phpbb.ulead.com.tw/EN/viewtopic.php?t=22022, especially if you get any problems with the actual footage on the DVD.

st3v3nbakker3 · Post by **st3v3nbakker3** » Sat Apr 21, 2007 12:08 am

Thanks for the quick replys.
Well i do not have a dv camcorder i just have a camera that makes ASF movie files. The movie files play fine in windows media player and ulead but as soon as I edit them by trimming them or anything like that it makes them go choppy whether or not I save them as a video file or burn them to dvd.

These are my project settings:

NTSC drop frame (29.97 fps)
MPEG files
24 bits, 720 x 480, 29.97 fps
Upper Field First
(MPEG-2), 4:3
Video data rate: Variable (Max. 8000 kbps)
Audio data rate: 224 kbps
MPEG audio layer 2, 48 KHz, Stereo

I have tried both lower field first and upper field first but nothing seems to work

nealenapier · Post by **nealenapier** » Sat Apr 21, 2007 12:24 pm

Ok not quite my bag since I import DV but here are some thoughts anyway...

I don't think it is relevent since you are gettting problems creating the video file, but there is an option when you create the disk something like "don't convert MPEG compliant files". I think there is an equivilent option when you create an mpeg video from an mpeg source "Perform Smart Render". Is this set? If it is not then I think it will be re-rendering your mpeg file when creating the video file which will give quality issues.

BTW - I would change "Video data rate: Variable (Max. 8000 kbps)" to constant 8000 kbps. At this rate there is no real space saving benefit to having variable (or at least that is what I have found) and it makes producing the video much quicker as it does not have to perform 2-passes.

Post by **Ron P.** » Sat Apr 21, 2007 12:32 pm

st3v3nbakker3 wrote:Thanks for the quick replys.
Well i do not have a dv camcorder i just have a camera that makes ASF movie files. The movie files play fine in windows media player and ulead but as soon as I edit them by trimming them or anything like that it makes them go choppy whether or not I save them as a video file or burn them to dvd.

These are my project settings:

NTSC drop frame (29.97 fps)
MPEG files
24 bits, 720 x 480, 29.97 fps
Upper Field First
(MPEG-2), 4:3
Video data rate: Variable (Max. 8000 kbps)
Audio data rate: 224 kbps
MPEG audio layer 2, 48 KHz, Stereo

I have tried both lower field first and upper field first but nothing seems to work

While those are your Project Properties, could you post the Video Clip Properties? Right-click on a video clip either in the timeline or library, select Properties, then post them back here. If your Project Properties are UFF, and your video clips are LFF or Frame Based, then that would certainly cause the jerkiness you are describing.

Your Project Properties, especially the Field Orders, must match that of your video clips. The ASF format has me a bit concerned. I think this is one of MS, WMV streaming file formats.

st3v3nbakker3 · Post by **st3v3nbakker3** » Sun Apr 22, 2007 10:27 am

These are my video clip properties :

Data rate: 1339 kbps
Video: ISO MPEG-4 Video V1
24 bits, 640 x 480, 11.023 frames/sec

Post by **Ron P.** » Sun Apr 22, 2007 12:30 pm

Data rate: 1339 kbps
Video: ISO MPEG-4 Video V1
24 bits, 640 x 480, 11.023 frames/sec

NTSC drop frame (29.97 fps)
MPEG files
24 bits, 720 x 480, 29.97 fps
Upper Field First
(MPEG-2), 4:3
Video data rate: Variable (Max. 8000 kbps)
Audio data rate: 224 kbps
MPEG audio layer 2, 48 KHz, Stereo

If the top is the video properties, and the bottom one is the Project Properties, then just looking at the Frame Rates that I have highlighted in Red, would cause the video to be jerky.. Anytime you change the frame rate, drastically then the video editor has to compensate for either less or more frames each second. Since your video clip only has 11 Frames each second, and your Project is requiring 29.97 Frames per second, VS needs to try and add and additional 18.97 frames each second.

st3v3nbakker3 · Post by **st3v3nbakker3** » Mon Apr 23, 2007 4:44 am

Is there any way to change the frames per second in the project properties?

Post by **Ron P.** » Mon Apr 23, 2007 5:17 am

Yes there is, however your project will have to be an uncompressed AVI, in order to get close to that frame rate. The lowest that can be had is 15 fps, and you can still use the same frame size of 640 x 480.

In Project Properties, select AVI as the file type. Then click on Options, and go to the Last Tab, and in the pull down menu if it has Type-1, change it to None.
On the second Tab, change the Frame Rate to 15, and the Frame Size to 640 x 480.

However this is not DVD compliant, so if you are wanting to create a video DVD, it will have to be rendered to an MPEG-2 DVD compliant video file. I don't think that you're going to have a video worth watching. There is no way that I know to take that type of video file and make it DVD compliant and not have a quality problem, and the jerkiness..

st3v3nbakker3 · Post by **st3v3nbakker3** » Mon Apr 23, 2007 10:11 am

That stopped the jerkiness thanks heaps for all your help