Flickering in video. A resolution problem?

SonicClang wrote on 12/7/2006, 6:23 AM

I'm doing my first widescreen project right now. Last night I put together a photo montage, which I've done hundreds of times in 4:3, and I burned it to a DVD and watched it on my 42" plasma tv (which I just got a couple weeks ago). When I watched it, it looked like I hadn't selected "Reduce Interlace Flickering" because there was a lot of flickering when there were lots of lines on the screen, or trees. Trees were a big flicker problem because of all the leaves. But I did select "Reduce Interlace Flickering". I noticed the flickering on my external monitor as I was editing, but that thing is an old 13 inch TV so I didn't think much of it.

So since this is my first widescreen project, I'm wondering if I didn't set the resolution correctly? When I created the new project I selected "NTSC Widescreen" from the templates. So is this a project set up issue, or a render issue? I did notice the flickering as I was editing so my gut feeling is that it's not a render issue. When I rendered I selected 1.33:1 in the video options on the Mpeg-2 menu.

Any help on this would help me out a lot. I'm at work right now so I can't remember ALL the details. Just let me know if I'm missing something stupid.

Comments

Bill Ravens wrote on 12/7/2006, 7:15 AM

NTSC widescreen defaults to interlaced video. you didn't say what your source footage was filmed in, but, I would guess the problem lies in the interlacing. If you're projecting on a plasma TV, it's using progressive frames. The issue may be in the TV deinterlacing algorithms. Try re-rendering your footage and go into the "custom" menu to select progressive mode.

SonicClang wrote on 12/7/2006, 8:04 AM

I'll try progressive.

The original "footage" is a bunch of photos, not video. I'm using the pan/crop tool to move around the photos.

I really need to find out what TV my client has, then make sure it displays correctly on her TV. I hate that there's no standard right now for TV's and aspect ratios and all that crap.

Thanks for your quick reply!!

mr.beebo wrote on 12/7/2006, 1:46 PM

Noticed this issue first time I played back stills on my 57" sony. A common fix seems to be going back and adding .01 verticle gaussian blur to your stills. Eliminates the "jaggies" 99% of the time.

SonicClang wrote on 12/7/2006, 4:44 PM

I set everything to progressive that I could find and it's still happening.

Ok, I just put 0.001 in for both vert and horizontal and all it did was make the pictures fuzzy, but the flickering was still there. I'm going to edit one of the pictures in photoshop instead and see if that makes a difference.

Ok nope, it's still sparkeling. Man, this projec should not be taking this long to finish. I need to figure this out.

EDIT: I just selected "Best" for video quality in the mpeg-2 options and I think that did it. Is it not set to "Best" by default??

farss wrote on 12/7/2006, 6:07 PM

Not set to Best by default.

BTW if you need the GB FX set it to .001 or .002 Vertical ONLY will get rid of line twitter.

Bob.

SonicClang wrote on 12/8/2006, 1:48 PM

Oh ok, I'll try that. Either way though, if I do some blur or I select "Best", the render time will more than likely be increased slightly. No biggie, I do all my rendering when I leave for the day or go to bed. I don't care if it takes a while to render. :)