Strangest Problem Yet – Jerky Video

[Ron Moody]

Update:

I went to a previous week and checked the scroll at the end of the show. It played fine. I still don’t know what is causing it, but I plan to copy the previous week’s project and turn it into this weeks. We’ll see if it works. I’m wondering if it might have something to do with temp files, or maybe something got corrupted somehow.

[Michael Goldberg]

Hi,
It could have something to do with your video card. I had a similar problem a while back. What card are you using, and has the codec been updated recently possibly?
When I was using a bluefish444 card, any dissolves or titles would have what you’re describing when I rendered them. It turned out to be the new driver I had loaded had a bug in it, reversing the field order on render….try that?

Mike

[Ron Moody]

Thanks, but no, I haven’t changed any of that. I dumped the main content into an older project and am rendering the credit roll now. News in seconds…

Not only is the credit roll not smooth, it actually jumps in two places. I am at a total loss. My deadline was two days ago and I’m still no closer to fixing the problem. It should have been to the caption people on Tuesday and today is Thursday (my day off, and I’m sitting here, sigh).

Oh well.

[Ron Moody]

After looking deeper, it appears that only rendered segments are bad. If a title sits over video, the video before and after the title is fine, but during the title overlay, it’s like it’s running at 20fps. On the credit roll for example, the video and credit roll are not smooth, and in two places in the 25 second roll, it actually jumps like it missed a few frames or something. It’s on a 400 gig drive and of that, 25% is free.

Stranger and stranger.

I’m re-installing now.

[Ron Moody]

One more bit of info that I just realized that I hadn’t included…

The affected video discussed in earlier posts is viewed on another computer after rendering to an avi file on the original computer. The same affect is seen on both source and destination computers. So, it’s in the actual avi file output. This is not a simple display card driver artifact (since it also is seen in an exported file).

That should get somebody going. You’d think this would catch some budding tech PI’s curiosity.

Oh, and since the last post, I have re-installed PPro2. Then, when that didn’t change anything (after rebooting of course), I also un-installed it from the control panel and reinstalled it from the DVD. Still the same.

Go figure…

[Arlen Bell]

I’ve periodically encountered similar problems. My causes and solutions may of may not apply in your situation.
First, I’d be suspicious about any program that was recently installed. Quite a few do things or run in the background and draw resources that cause problems in Premiere. Have you tried restoring to a date before the last program you installed where this problem seemed to start?
Second, occasionally windows doesn’t always release memory when switching back and forth between programs. Do you have the same problem when you start the computer and run only Premiere?
Third, I presume all or your assets are on the one drive? If so, try moving your audio (or title, etc.) to another drive so these’s less chance for bottlenecks on the bus. Even though you are on a 400 Gig drive with 25% free, you could have frangmented files that are causing data transfer to slow down. I don’t like to defrag. drives I’m actively working on, but you might want to try and copy your files/assets to another drive and then defrag this drive. (It’s a good idea to have only edit files on work drives and to defrag before each new project (multiple firewire of removable drives are great for this).

[Alan Lacey]

Ron, did you ever get to the bottom of this?

Alan