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DNxHR HQX not playing back
I’m having trouble playing back footage in a timeline. The footage “stutters” while the audio plays at normal speed.
The clips are imported at DNxHR HQX (3840×2160) at 23.98 fps.
The project settings are UHD 23.976P.
I’m using a Mac Pro with 64 GB memory and MacOS Sierra Version 10.12.6.
I’m on Avid Media Composer 8.9.3.My assistant has exactly the same setup as me and she can play back the clips fine.
I tried playing back footage that is DNxHR LB (3840×2160) and that plays back just fine. I can’t think of anything I’m doing wrong. Any ideas would be greatly appreciated. Thank you.
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10 Replies
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I just unchecked “High Quality Scaling for Real Time Decode” in the Video Display Settings. It seemed to work for a moment, but then it went back to stuttering. Sigh.
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What type of drive is this footage on? Connected how?
Shane
Little Frog Post
Read my blog, Little Frog in High Def -
WD EasyShare solid state drive connected via USB 3.
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Wondering if USB3 is fast enough for DNXHR at 4K….
Shane
Little Frog Post
Read my blog, Little Frog in High Def -
I thought the same thing, but it seems to work on my assistant’s system.
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Green/Green or Green/yellow mode?
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Completely yellow mode.
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might want to try a different usb port. Maybe one on the back of the machine as opposed to a front panel port.
Glenn
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So Shane was right (as he so often is). USB 3 is NOT fast enough for UHD footage. I bought a thunderbolt cable and that did the trick. Thanks everyone.
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