Brian Leighty
Forum Replies Created
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I’ve never tried using a codec that supports alpha but I can still make a freeze frame from the canvas with alpha but maybe I’ll try that at some point to see if that fixes the prolbem though, regardless, I’m making the freeze frame from the viewer not from the canvas so I don’t think this should be the issue.
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Thanks for the input, I honestly have never liked Motion. If I was going to do it in an external application, I would much prefer doing it in After Effects. My whole goal is to try and keep it within Final Cut if possible but thank you for your input.
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No it’s a standalone drive and is able to keep up. I am going to try using the KONA audio instead and I believe that should fix the audio sync issue. I believe I figured out the other part of the problem though, I started with Kona card in slot 4 then tried slot 3 when I switched it to slot 2 the problem went away except for the audio being out of sync which will probably be fixed with using the Kona audio. I also noticed about 20% reduction in CPU usage when playing back a Prores clip. Not sure what caused it just glad it worked.
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Gotcha so then that is correct that it should take more CPU to playback. One other thing I noted between the two, my AJA card when playing back the HDV sequence goes to DVCPROHD50 but on the Prores sequence it switches YUV-8b or 10b depending on which I have selected. Any other thoughts?
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Ok, a little more information. Comparing the CPU utilization of playing back an HDV clip, it’s taking up about 80% CPU in the activity monitor. When I playback a prores clip It’s more around 140%. Does anybody know if this is correct. I was under the assumption that HDV took more CPU and that was one of the main reasons to use Prores over it. If someone could test this out and see if this correct or if this could be the source of my problems I’d appreciate it. Thanks.
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Alright let me answer all your questions together here.
Has this setup (your computer) ever worked?
Yes, we are now transitioning to using prores as our main codec but I have successfully edited both Standard Def Prores and HDV footage with no problems.What kind of RAID system are you using?
My system is a single internal 7200 RPM HD. I just noticed today that we are having the same issue on our studio machine as well though and that is two drives in a RAID 0 together. As I said I checked the internal tools and the drives are keeping up just fine.where is your audio playing from? Is it coming out of the LHe and into a mixer?
No I am using a pair of monitors running out of the line output of the mac pro. I have not had a chance to test if using the AJA out would help at all, however even if it did, that’s only part of the issue. As I said, the footage is delayed from what’s on my canvas or viewer and when I hit pause, the footage on my external monitor jumps to catch up.
Thanks for all your help please me know if you have any other ideas. -
No there is no render bar at all. It’s in it’s native format and easy setup is set for Prores 1080i 29.97 same as my footage.
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Yes I can, It’s just there’s no option for only 2 channel input only eight.
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No, the one in the capture window is actually greyed out. I am talking about the one in the capture preset edit window.
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I wish it was that easy when I pull up the window I have two options, 8 channels of 16bit audio or 8 channels of 24bit audio those are my only two options for audio.