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Crappy Multi-Cam Performance
Apple says that you can group up to 128 source clips together for a multi-cam edit.
Yeah, well I’m trying 4 clips and the playback constantly freezes in the viewer. It will continue playing in the timeline, but it starts dropping frames and freezing as soon as I start switching between all 4 clips. Maybe the clips are just too big? It is a live concert and they’re each about 50 minutes long. I’m on a Dual 2.5 GHz G5 with 4.5 GB RAM and 256 MB GeForce nVidia 6800 graphics card. Any body else experienceing multi-cam problems? Any suggestions?
Behold My Electronic Signature
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9 Replies
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What’s your hard dive hardware and what resolution is your media?
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G5 Dual 2Ghz <> 4GB RAM <> FCP 5.02 <> Kona 2ATTO 42XS <> Huge Systems 1.25 TB 4105 Fibre
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Unfortunately the drive it’s on is a Hitachi Deskstar. External, 7200 RPM, ATA/IDE, FW 400 connection. I could transfer it to a LaCie FW 800 though, if you think that will help. The footage is miniDV. Standard 720×480.
Behold My Electronic Signature
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Good grief – of course your multicam isn’t great! FW400 is the bare minimum for performance, transfer to FW800 and you should see a difference
Steve Connor
Cardinal HDPlease fill in your profile – it helps US to help YOU!
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Yeah, I think I was expecting that answer. I’ll give it a go. Thanks.
Behold My Electronic Signature
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You are still probably going to get dropped frames.
I do 4 camera shows offline at DV and it runs fine
but I’m using my 4 drive SATA RAID, the same one
I use for my online at uncompressed. Even so,
I still get the occasional hickup and dropped frames
while running sequences with the “open” on (where
you see all your cameras moving in the viewer to the
sequence). So one 800 firewire drive is still pushing it
I think. Other than that, you will love the multicam.
It’s very close to AVIDs way, which is pretty good.
In one way I like it better. Making multiclips is
easier on FCP in my opinion.Dan
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Actually, I think transferring to the FW 800 LaCie drive did the trick. All of my other settings people had suggested were already in place. I’ve now set the same project up on the LaCie, and presto! Thanks for all of the help.
Behold My Electronic Signature
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That’s great news. I guess multicam can do with less disk speed
than I thought.Dan
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At least get that FW800 drives on a separate PCI card. Avoid daisy chaining or attaching drives and deck to the same bus.
Kevin Monahan
Take My FCP Master’s Seminar!
fcpworld.com -
Just to give you a reference – we are doing a 7 track multicam edit on FCP 5:
Clips are about 15 minutes, DV PAL. Running FCP 5 on a G4 1.25 DP with 1.5GB RAM, os X.3.9, Quicktime 7, Fibre channel SAN using SanMP, the array we are accessing is a stripe of two six-drive raid 5 sets in a ADTX array, equal to a 12 drive raid 50 set.
Performance: we get about a 1 second playback startup delay and then it runs well, with cutting on the fly.
So: For multicam editing, the drive speed is much more important than the CPU power.
Regards
Francois
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