interlacing problems

peterpan wrote on 8/4/2004, 11:33 AM
I have edited a 27 minute project and want to put it on a DVD to play back through a TV. I have rendered to Mpeg2, used no deinterlace and lower field first. The rendered footage has bad chunky edge distortions on sideways panning when played back on a TV, but not when viewed on a PC monitor.

My questions are:
1. Do I need to deinterlace if it is to be viewed on a TV screen, if so, interpolate or blend?

2. Do i need upper of lower field first?

Any advice would be nice.
Peter

Comments

ghosty6 wrote on 8/4/2004, 6:32 PM
Leave the project settings at deinterlace>blend fields
I had the same issue and got confused, from what I have learned this should only effect the transitions, however i found that if I left the option to no interlace I got the same effect as you on the TV.

To this day I am still confused about this, however I do know that leaving the above to deinterlace>blend fileds worked for me.
blurred wrote on 8/9/2004, 12:12 PM
I had a similar problem. Choose to interlace top field first. That solved it for me. I also played with the variable bit-rate settings, generally using high numbers. See what happens.
johnmeyer wrote on 8/9/2004, 2:29 PM
The answer depends on the format of your source video. If it is NTSC DV AVI, then make sure your project settings (found under File -> Properties) are the default (Field Order: Lower Field First, and Deinterlace Method: Blend Fields). When you select Render As, choose the "DVD Architect NTSC Video Stream" template. This will set the various options to the correct value. (After selecting this template, you can click on the "Custom ..." button and change the average bitrate to make the file size fit your DVD, but don't change the other settings).
farss wrote on 8/10/2004, 12:42 AM
If it's 'chunky' bits on the edges then it's almost certainly not an interlacing issue from what I know. Even if you egt the field order backwards the effect is more like a 'stutter' on motion.
I think the issue is more likely due to having too low a bitrate for the amount of motion or too much else happening in the shot using up bandwidth, perhaps noise. Either way without knowing how much video you're trying to fit onto the DVD it's hard to say for sure.

Bob.