Random Flash Frame Weirdness

jeff-beardall wrote on 1/20/2005, 8:09 PM
Has anyone had the following happen: when using a push transition, a single frame from the midddle of the transition shows up at the very beginning of the transition. The problem is previewable on timeline and visible in AVI renders. Also happens on Iris xition. I can make it go away by very sliightly trimming the transiition end. Here's a related weird one: Same project...everything fixed..renders beautifully...no problems. I import the rendered avi into DVDA2 (latest 130) burn a DVD and the weird frame thing happens again at the beginning of the iris xition. I preview the avi on the DVDA timeline...no problem...I render it again and check the vob before burn...same stray frame problem. What would make two different apps introduce a stray frame at the beginning of a transition in those situations: on the timeline in VV5 and after a render of a known good avi file in DVDA? Help me keep the faith!!!!

Comments

rmack350 wrote on 1/20/2005, 10:29 PM
Save off everything the way it is. Just save a copy of the projects and put them away because you might be able to send them to Sony and they might be able to see the problem.

You need to call or write sony support and report this. It's been reported many times but they don't seem to be able to reproduce it.

Aside from that (and now that you've saved off copies of the projects)...well, I have no idea what causes this. I just tried to reproduce it but couldn't. There are lots of hypothesis. Many think it's a stray cached frame in RAM but the fact that you can get it to appear in two fairly separate situations makes me wonder. In any case, the solution most often offered is to close Vegas (flushing RAM), and then reopen before starting that render.

Personally, I keep going back to the idea of partial frames. Vegas is really sample-based and it can give you events that are n+ a half frames long. I wonder if there's something like that going on-maybe part of a frame is sitting in there and sometimes you see it, sometimes you don't, depending on how Vegas and DVDa round things.

There is a script out there that will check a veg file for really short events.

Another thing. If you're working in NTSC you should keep in mind that 10.010 seconds equals 300 frames. 10.000 seconds equals an undesireable 299.700 frames. You would want to at least go into prefs and set the new still image length to something like 5.005 or 10.010 seconds. You want to watch out for default event lengths in an NTSC project because nothing should be measure in whole seconds.

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Rob Mack