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Re: QuickTime playback jitter



Hi All,

been thru everything I can think of (incl. VLC etc etc etc), but seem to have resolved the issue by looking at other authoring environments - Director was crap, Livestage limited, but iShell - well - nice:) It must be a timebase issue and the way the app (QC) addresses independent timebases. A pity after all the programming that went into the quartz version, but them's the breaks. I have yet to fully test this on the G5 (runs fine off the powerbook), but it saves me a heap on new graphics cards, RAIDS or computers (and YES - I've checked out a few configs there - all very fast in quicktime (cache/RAM) and disk-read).
iShell, could, of course, have a GUI like QC - it's so nice (but get rid of the limits on the window size in the composition (QC) - too much scrolling!)
Anyway, I will report back & thanks everyone for your generous time and thoughts.


On 13/07/2007, at 5:40 PM, Andy Fuchs wrote:

I don't think that's a HD problem. To me it sounds more as if QC is the
bottleneck. Because this movie should playback on a MacPro even uncompressed
w/o any problem.


Peter, have you tried to playback the file in VLC? Were there any
differences to playback in QC?

andy




at 13.07.2007 7:18 Uhr, vade wrote:

What kind of harddrives are you using to play these back? Typcially, for HD
resolution and uncompressed playback you need around 200MB/second, which
requires something like an XServe Raid or other high speed disks. You can
minimize this throughput need by using compression, but you'll still probably
need some decently fast disks for files that size.




Peter ___________________________________ Peter Morse

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