Scrolling text is jittery/interlaced...

Arjan wrote on 10/27/2002, 11:03 AM
Hi,

I hope someone is online and quick because this project has to be done in about 3 hours or so...

Here is the problem. I need to scroll text (lyrics) horizontally at the speed of the vocals... Now I've tried to do this in 2 ways and both ways have some sort of interlace jitter applied to it.

1st method : Create text in text media and by using the event timeline (edit generated media) I add keyframes (with different screen positions) and create motion this way.

2nd method : Create an text event as above but make it larger than the project so that the text fits entirely. And then use Video event pan/crop to create the motion..

Both methods create the scroll I want (although the event pan/crop has funny speed problems as well) but both result in some sort of interlaced jitter no matter what switches I apply (reduce interlace flicker / resample) or how many keyframes I insert.

Please help.....

Arjan.

Comments

Tyler.Durden wrote on 10/27/2002, 11:33 AM
Rendering at best-quality? Default template?

Sounds like either way described should get good looking results...

(Best can be a time-intensive render, tho.)

HTH, MPH

Arjan wrote on 10/27/2002, 11:45 AM
OK I sort of solved my own problem here...

The problem occured at the rendering stage. (Using PAL DV standard settings.) Seems like I have to set the rendering options to progressive and use interlace every frame to get good results. Seems strange that the default template has these problems. Only thing I can think of right now is that I am using a sample rate of 44.1Khz instead of 48Khz for audio.

THX for the answer.

Arjan.
HPV wrote on 10/27/2002, 1:23 PM
The problem occured at the rendering stage. (Using PAL DV standard settings.) Seems like I have to set the rendering options to progressive and use interlace every frame to get good results. Seems strange that the default template has these problems.
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That fixes it because the source (text) is progressive. But now your interlaced video is progressive.
The trick here is set resampling on for the background video media and render to stock DV template. Resampling the text media itself is needed if there is any vertical movement.

Craig H.
Arjan wrote on 10/27/2002, 4:47 PM
Resample the text to a new avi file or just set resample switch ?

I find it very strange that a VV3 feature has to be so difficult to use.
I'm also no DV editor at all. Just a musician who has a few hours access to this program and I'm, already very pleased that I could edit the video itself. But the text is something that I really wanted in. This project is going to end up on a PAL DVD. Does it have to be interlaced? They just told me to get a DVD quality videoclip for our music. Can it be interlaced afterwards without losing too much of the quality ? Another thing I noticed is that the motion isn't very smooth.. Not even when inserting more keyframes.... Guess I should have stayed with Final Cut Pro 3.0 huh...<G> (I hate macs...)

Time is running out for me... Guess I'm not getting any sleep today/tonight...

Arjan
HPV wrote on 10/28/2002, 10:45 PM
Resample the text to a new avi file or just set resample switch ?
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If the text is over video, activate resample for the video event/events. If that doesn't do it, try setting resample for both video/s and text event. Rendered to standard PAL DV avi template will produce an interlace/tv ready DV file. Make sure you're not rendering to uncompressed avi. Render settings over ride project settings. Play rendered file with Vidcap in preview mode out to DV device and TV/Monitor. You're text should have smooth motion.
You mentioned you had changed the frame interleave setting in the custom area of the render panel. I found checking the box for "every frame" made my rendered avi files have equal length audio and video. Don't think that setting will affect image quality/performance. You can save as a template by typing new name and clicking the floppy/save icon.
Hang in there, hope you nail it down.


Craig H.