Multiclip editing is choking during playback
by mudbutter
on
Oct 20, 2007 at 4:46:50 pm
Hi,
I just created a mulitclip using 6 angles and my computer is choking on playback. I just went and bought 4 more gigs of ram (totaling 6) to try to fix the problem and it's the same as when i had 2 gigs. I'm playing back 720p prores 422 HQ. Does anyone have any tips. And my settings are on unlimitted and dynamic.
Thanks so much
Re: Multiclip editing is choking during playback by David Roth Weiss on Oct 20, 2007 at 6:51:06 pm
That should be fast enough, but you should run a test to check the throughput. Do you have either the AJA or Blackmagic drive test? If so, run some tests and see what your numbers are. Its possible that your throughput is just not high enough for the number of streams you're playing back in multicam. If not, your drives may be too full or some other issue is causing a bottleneck.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles
POST-PRODUCTION WITHOUT THE USUAL INSANITY™
A forum host of Creative COW's Business & Marketing, and Indie Film & Documentary forums.
Re: Multiclip editing is choking during playback by mudbutter on Oct 20, 2007 at 6:59:01 pm
I'm using an aja kona LH but i don't have a drive test. It would be ashame if the guy recommeded all this ram, which isn't making any difference instead of putting that money towards another drive to back up some of the other projects onto. Does all this ram even make any difference with final cut?
Re: Multiclip editing is choking during playback by David Roth Weiss on Oct 20, 2007 at 7:39:20 pm
They are both important, but if the drives are not providing the needed throughput your system will be hamstrung.
Your AJA Utilities which gets insatlled in your Applications Folder has the AJA System Test. Run that a few times to test your hard drive throughput. After opening read the help files to mkae certain you run the proper tests and report back...
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles
POST-PRODUCTION WITHOUT THE USUAL INSANITY™
A forum host of Creative COW's Business & Marketing, and Indie Film & Documentary forums.
Re: Multiclip editing is choking during playback by mudbutter on Oct 20, 2007 at 7:53:09 pm
the test gave this info:
Media Vault RAID/Disk Whack Test-
128.0MB
Write:344.3 MB/s
Read:315.1MB/s
in the options the volume was set to Media Vault Raid
the video frame size: 720x486 8bit
file size 128MB
and Disable file system cache was checked
Simultaneous Kona DMA was not checked.
Re: Multiclip editing is choking during playback by David Roth Weiss on Oct 20, 2007 at 8:34:34 pm
Your throughput is pretty good, but probably not enough for six streams of 720p Pro Res.
Now, what your gonna probably need to do is drop one stream at a time from your multiclip to see how many streams you can handle at one time before choking.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles
POST-PRODUCTION WITHOUT THE USUAL INSANITY™
A forum host of Creative COW's Business & Marketing, and Indie Film & Documentary forums.
Re: Multiclip editing is choking during playback by JeremyG on Oct 22, 2007 at 8:21:03 pm
In my limited/short experience, ProRes is really really good at scaling for rt. Better and so completely different than anything FCP has ever done for us before. As long as your rt is set to dynamic in both frame rate and quality, you should be golden. I just tried an 8 clip multiclip with ProRes 720p24 and it's playing back nicely in dynamic rt. My drive is running faster than 300MB sec, but that should be enough throughput for you, especially with dynamic rt.
