Help on using vegas3a and mpeg2 files and also Cleaner 5.

DR wrote on 2/28/2002, 9:00 PM
Ok when I take a commercial that came in from a dv source and render down in vegas vid 3a as a mainconcept mpeg2 I get a combing effect on fast moving scenes(looks like lines on the image caused by interlacing or field order wrong).
So we try to change the field order to upper instead of lower and get same result.
But when we use progressive it looks fine.
Granted we are playing these rendered files on our computer screen.

So I am asking does anyone else have this prob??

Or should we use progressive when rendering to an mpeg2 file?

I tried this same dv vid file in Cleaner 5 and rendered using mpeg2 in their program and it came out great everytime.

Am I missing something here?
Help???

Comments

PeterMac wrote on 3/1/2002, 9:51 AM
The lines you see on the computer you won't see on a TV. They are interlace effects made visible by displaying the movie on a non interlaced monitor.
You can normally set interlacing on or off somewhere in an MPEG encoder according to the target display device.

-Pete
DR wrote on 3/1/2002, 10:04 AM
I was just trying find this out before burning a dvd full of lines and we now that is not always a cheap way to find this out!!!
So If I am doing this for quicktime for computers I can turn this to progressive right to not get the lines showing up on final render?
Because I do get this sometimes with other renders such as quicktime,media player,etc.
Field order will not be totally have to be set to up or down always right?

SonyEPM wrote on 3/1/2002, 10:20 AM
If you are rendering files for computer playback, your best bet is to use progressive.

If you are rendering as interlaced MPEG-2, for DVD playback (meaning standalone DVD player fed to a TV), you should be able to use the canned NTSC DVD preset with no problems...as long as your source material has it's fieed order interpretted correctly. For DV source this is always lower, but for MJPEG it will usually be upper- worth checking if you have MJPEG source material. Most of the time you shouldn't have to adjust anything, and if you do, save the profile.

If the DVD autoring software is re-transcoding the MPEGs from Vegas, that could cause a problem. DVDit and the lower/mid Sonic Solutions products do not have to re-transcode the Vegas files generated using the fixed templates.

Also: Sofwtare DVD payback emulation is not at all the same thing as watching the files playing back from DVD media, in a player, on a TV, so don't let emulation mode confuse the issue.

Lastly, if your DVD burner supports a rewritable format, that is the way to go for tests discs.
DR wrote on 3/1/2002, 10:41 AM
Thank you again