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Jerky playback and missing peaks in timeline when cutting between multi-cam clips
Is it a known issue with Final Cut that cutting between multip-cam clips in the timeline causes jerky, slightly out of sync playback and the audio peaks/thumbnails in the timeline to disappear?
As soon as playback is stopped, the peaks build and playback catches up in sync when playing again… until the next cut.
Could this be something to do with our set up…
We have 4 machines in the studio (iMac i7 3.4G, 16GB RAM) running FCPX 10.0.6 and this occurs on all of them. We use external firewire hard drives to store and edit clips (AVCHD) and we’ve tested different drives.
When creating / editing a project we only have one event in the event browser and one project in the project list at a time.
Events tend to range from 20GB – 35GB with 5-20 clips and smaller events are no better.
Any tips would be much appreciated.
Phil.
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4 Replies
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If you dont do this already, use proxies. Using Proxies doesnt get any easier than with FCPx.. And it will seriously speed up your app.
Aside from that if you want the smoothest FCPx you can get, use an SSD drive instead of a spinner; preferably hooked up via Thunderbolt.
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[Philip Davies] “Could this be something to do with our set up…”
yes it is something like that, do the math on your data throughput needs.
You are well beyond what can be done in real time over FW, in addition to using a non-native codec for FCP that requires you to use CPU to decode and playback each stream in addition to reading and writing from one or more multiple drives over a limited data pipe.
gary adcock
Studio37Post and Production Workflow Consultant
Production and Post Stereographer
Chicago, ILhttps://blogs.creativecow.net/24640
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@garyadcock -
Thanks for suggestions.
Using proxy, I’ve read that the final output is noticeably lower quality compared to optimised or native. We use up hard drives pretty quickly as it is (filming 4 days a week, every week) so using optimised isn’t really an option either. It’s not just the storage, is the significantly extra import time. So I guess we’ll need to stump for thunderbolt drives for everyone. Best look at remortgaging now then…
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Well.. You ONLY use Proxies DURING working… When rendering out the final project you HAVE to switch back to High Quality Media…
Proxies are a god-sent.. Use them and smile. The way FCPx lets you work with proxies is the most amazing thing I have ever experienced…
Only caveat.. If you work with files having an alpha channel… The proxy does NOT support alpha channels… Aside from that, Proxies are the way to go regardless of original media. It will make FCPx fly !
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