Slow Motion Flickering...

MoBetta wrote on 10/9/2001, 10:22 AM
I keep getting video flickering in all of the events with slow motion (velocity envelope), and only within the slow motion events. All transitions and pan/crop events are fine. I render and play my project back on the timeline, or in Media Player, or back on my Sony Walkman 900 and all is fine, but when I play is back on my external monitor, I get the flickering during those specific segments. I turned on the event>resample switch and got the same results???

Any advise…

Thanks

MoBetta

Comments

Foreverain4 wrote on 10/9/2001, 11:29 AM
try resampling your whole project. go file, render as, choose your format and template, then you should have advanced options for the template. go to the video tab in your advanced options and check the box that says "resample frame rate". i dont check the resample frame rate for each event, i just simply resample the whole project during render. this works great for me rendering to the DV template. i have smooth slow motion for speeds down to 10%. let us know if this helps!
FadeToBlack wrote on 10/9/2001, 4:51 PM
MoBetta wrote on 10/9/2001, 5:03 PM
...as I mentioned in my initial message, I did resample only the event with the velocity envelope, and rendered the file...but why should it make any difference if you resample the whole project vs just the event...

MoBetta
SonyEPM wrote on 10/9/2001, 5:19 PM
Resampling the entire project will drastically increase render time.
MoBetta wrote on 10/9/2001, 6:03 PM
...Sonic EPM, any other suggestions re: the flickering since I've resampled the events in question.

MoBetta
pelvis wrote on 10/9/2001, 8:36 PM
what is the source format for the timestretched events (DV avi, mpeg, some non-DV avi codec)?

and:

What is the output format?

MoBetta wrote on 10/9/2001, 9:44 PM
The source format is DV and the output format is NTSC DV, basically the same formats...

MoBetta
SonyEPM wrote on 10/10/2001, 8:39 AM
please email me a the project (veg file only, no media) that is creating this flicker and I'll scope it out.

sonicepm@sonicfoundry.com
MoBetta wrote on 10/10/2001, 11:58 AM
Thanks for the reply...I will forward a sample avi. file tonight (I am away from my editing system). I was able to render a short file without problem by resampling the whole project vs just resampling the event with slow motion, but the render time took three times longer...maybe it's the best solution???

MoBetta
jdozz wrote on 10/10/2001, 2:36 PM
Mobetta, I had the same problem and never got it fixed. When you solve this issue, please post it for all to see. Thanks!
MoBetta wrote on 10/10/2001, 3:20 PM
...jdozz, as I mentioned previously, I was able to resample / render a complete file with good results. I followed the advise of Foreverain4 (2nd reply from my original post). I'm not sure it will work all the time, I had the same problem during a second and third attempt. Experiment with the various templates when rendering the file. Let me know.

MoBetta