Field order question

jimingo wrote on 7/20/2006, 10:43 PM

I captured a tape (all as one clip) which consists of 24p 30p and 60i footage. When I check the field order of the clip, it says progressive scan because the footage at the begining of the tape is 24p. My question is do I have to split the 60i footage from the 24p footage and change the field order to lower field first? Or will that not make a difference? My footage doesn't look wierd or anything but I was just wondering if this was the correct thing to do when you have different framerates in one clip.

Thanks
-Jim

Comments

Grazie wrote on 7/20/2006, 10:47 PM

Jim! That is a truly fascinating question - well I think so. I've no idea, but am also eager to hear what "others" have to say.

Interesting . .

GlennChan wrote on 7/23/2006, 12:05 PM

Have you tried watching things on a CRT TV?

jaegersing wrote on 7/25/2006, 3:06 AM

Hi Jim. If you do anything to the video that requires deinterlacing, such as slomo, you should split the clip and set the fields correctly for each portion.

Richard Hunter

farss wrote on 7/25/2006, 4:38 AM

Yes,
I'd tend to agree. I've never done this with vision however Vegas's VidCap does have an issue with changing audio sample rates, it'll resample everything to the first sample rate it sees.
So say you start to play out 16/48K from a DSR-11 but you start on blank tape. Well the DSR-11 starts off sending 12/32K and VidCap lock to that. Which means ALL the audio from then on from the tape ends up as 16/32K. No real harm done as Vegas resamples very well but still annoying. I think if you turn scene detection on issue is avoided.

I'd be a tad nervous about just what would happen with vision, again I think using Scene Detection would avoid the problem, just a guess though so do check media properties after capture.

Bob.