Field order A or B

[troyvcd1]

In this site I always hear that a miniDV cam will capture in field order B type video. When I go to make a svcd using media studio mpg maker and set the field order to B the video is choppy but when I set the field order to A it is smooth. Any help??????????

[adam]

I suppose your camcorder is different. It really doesn't matter which field order you encode to as long as its the same as your source. As long as the playback is smooth that's all that matters, so just stick to Field A first.

[troyvcd1]

Thanks for the reply. It still doesnt make any sense to me. I got a sony trv25 standard camcorder. When I capture in videostudeo does it somehow put in in field order A for me???? I am encoding using ulead software too and I am wondering if I encode using tmpgenc or cce should I use fiedl order a or b. Any other suggestions on this.???

[adam]

It is possible for software to reverse the field order but like I said, my guess is just that your camcorder is different.

Your field order makes no difference as long as you treat it accordingly. If you always use videostudio to capture then simply check your field order one more time to be sure. Load your source in TMPGenc and in the advanced tab double click on the deinterlace filter and set the filter to even odd field (field.) Scroll through your movie and see if it looks ok. If it jumps back a few frames every second then your field order is incorrect. Switch it and check again. Whatever field order it is, it will always be that if you use the same process of going from camcorder to PC.

So if its A than simply set it to that in TMPGenc and you will always be fine. Actually CCE has a bug, or I suppose just a misleading naming system, regarding its field order. I believe its basically switched but I'm not positive since I always use progressive material. So just check and see for yourself.

If you really need to change the field order of your source you can use pulldown.exe, but like I said, it really doesn't matter what your field order is as long as you specify it correctly to the encoder.

[sdmoore]

I'm not sure about Ulead's products but I use Vegas Video to create mpg's for SVCD using clips captured from DV. VV 'knows' the field order of the DV files as being Field B (I guess this info is part of the AVI header) - when I create mpg for SVCD the setting for Field order is for the taget file - i.e. Field A. So, basically I always ensure the Field order is A (and just double check VV says the DV capture AVI's are Field B) then I know the SVCD will be OK. As a side note, you may need to be careful if you ever do analog captures - I've seen Hauppauge WinTV card that sometimes got the field order wrong - some captures were Field A and some were Field B (they should all have been Field A). This problem with WinTV seems to have been resolved with the latest WinTV drivers (using XP btw)

[alexruiz]

I suppose your camcorder is different. It really doesn't matter which field order you encode to as long as its the same as your source. As long as the playback is smooth that's all that matters, so just stick to Field A first.

I am a little confused here. In TMPGEnc, the "advanced" tab under mpeg settings refer to the field order of the source, but also refers to the field order of the OUTPUT file..... doesn't it??? So that means that if I have "field B" my resulting MPEG will be field B, even if the source is field A.... Am I right???

If I am correct, I just need to make sure that the field in that tab is the same that the source.....

I tried using the method sugested to check field dominance (tmpgenc -> settings -> advanced -> deinterlace filter set to odd or even..... ) My source is DV type I, but I guess I need new glasses because both of them seemed fine..... Is this normal. By the way, I am using also Ulead VideoStudio (ver 5) which has the template for DV type I as "field order A"......

Thank you for the sugestions

[troyvcd1]

so sdmoore:

are you saying that if the avi is field B you should make your output mpg file field A. why is this????

[The village idiot]

DV has a BOTTOM field first order. Check your author/edit apps to see which type "A" and "B" is. Some apps have "A" as bottom field first, some have "B" as bottom field first. In the end you need the one that works.

[vhelp]

SatStorm,

Use this rule of thumb:
* if Capture Card used, set Field A
* if firewire from DV CAM to HD used, set to Field B

That's it!!

troyvcd1,

For DV devices ie DV CAM:
-------------------------
When it's coming out of the DV CAM through the Firewire cord,
it's Field B, ...because of the circuitry and/or DV cam's internal softare
control.

When you Capture w/ a Capture card from the DV CAM using the
A/V output, it's Field A, ...because it bypassing the internals
that Firewire is set to, of the DV cam.

This is my experience. I've messed with this issue long ago, when
I first got my Canon ZR-10 DV CAM, moons ago.

-vhelp

[Linelle]

For a newbie, this is a really great discussion. Because there's so much to learn, I appreciate the simplification. I take home movies on my miniDV, and capture to my PC via firewire. So, it's always Field B, yes?

I have Premiere 6.5 and, while everyone really sings praises of TMPEGEnc, if at all possible, it would be nice to stick with one program for capture, edit, export to MPEG for VCD's.

Can I assume that I should keep the same settings for Premiere (Field B, Interlace)? Or is TMPEGEnc so superior that I should just make it part of the process?

Thanks for all the enlightenment. There will ALWAYS be some follow-up question.