Video Jitter Question

[joecav]

Hi all,

I searched on this topic and found that most people think this has to do with a field order mix up. I have an AVI file I captured on with Winfast TV 2000XP Deluxe card and I encoded using MainConcept in Premiere.

The only option relating to field order in Premiere's MainConcept is Lower Field First (DV), Upper Field First or No Fields. The default is Lower and is what I used to encode to MPEG. Should I have used Upper or No Fields since this wasn't a DV AVI? I have no idea what field order is or what it means to the final MPEG so any insight would be great. This jitter gives me vertigo.

As always thanks in advance.

EDIT - I did find this in the Glossary....In an interlaced video a field is 1/2 of a complete picture (Frame) consisting of the even or odd scanlines in the frame. Usually each field is labeled ie. Field A and Field B. When working with interlaced video it is important to note the Field Order (if Field A comes before Field B in the video stream) especially when encoding. If you notice flicker after encoding you will want to change the field order in the encoding template and reencode.

...I guess field A and B and interchangeable with Upper and lower fields? And how can I tell what field comes first?

[joecav]

Well I answered my own question by trial and (thankfully no) error. I adjusted the field order to Upper field (since the source was not DV AVI)and then re-encoded. I authored the DVD and it works just great. NO JITTER.

Hope this helps someone using Premiere in the future.