Blips on render, print to tape, not timeline

frogmugsy wrote on 9/8/2003, 9:18 PM

Rendered a project as uncomp. avi and then printed to dv tape. Noticed two blips (artifacts? or whatever it is, it shouldn't be there) on the dv tape @ 3 min 7 sec and then 3 min 18 sec., very noticable. Went back to the uncomp. avi on the 'puter and noticed it was there too. I just thought I would open the new rendered project on the timeline and cut out the offending frames. To my surprise, no blips, or artifacts to be found. I did a frame by frame search on the timeline and nothing. I rendered just that section and they still show up on the avi and dv tape, but again, not on the timeline. Hmmm......
btw, this is an incredibly informative, enlightening and entertaining forum.

Comments

Chienworks wrote on 9/9/2003, 6:11 AM

Uncompressed? That might be your problem. That's a LOT of bits to handle every second for real time playback! Not many computers are up to the task. For that matter, how did you print to tape? SonicFoundry software will only print DV compressed AVI files. Try using DV instead of uncompressed. Your computer will handle that a lot better since the files are only about 1/8 as big.

frogmugsy wrote on 9/9/2003, 8:19 PM

I went back to check my settings, and my bad, it was the audio that is uncompressed. I am using the NTSC DV template. I was currently on project M, and working backwards as luck would have it, I found it on project B (I've got to find a better way to organize my projects). Both blips ocurred right b4 a transition, but again, not noticable on the timeline, but only when i render and then print to tape. I changed the transitions near both blips and it seems both have disappeared. I still think it's weird because it's really the first time I had a problem.
BTW, Chien, thanks for taking the time for reading and answering. Also, I find it generous of you to post a clip on some of the tips in the forum. That helps (me) out a lot.

filmy wrote on 9/9/2003, 8:53 PM

Are you doing any 24p stuff? I just had somethig like this happen and it always happened at exactly the same spot during a PPT from the timeline but it was not in the renders. Solution for me was to just render the entire film and use the capture mod to play back out via firewire. No problems. Try that and see if you still get the 'blips'.

frogmugsy wrote on 9/10/2003, 11:07 PM

I noticed the blips ocurred right b4 a transition and so I went back and replaced the transitions between the still .png photos with other transitions and that took care of the blips, or artifacts. Rendered fine and printed to dv tape fine. For some reason it was the swap transition that caused it, for what it's worth.