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weird jittery motion on Qnix QX2710

post #1 of 5
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Hi, I recently got a QNIX Qx2710; I have oc'd it to 96hz, and I notice while watching movies it's very jittery and not smooth at all.. Does nayone know why this is? I tested it on that one website and it seems to be fine there.. To give an example of what this is like while watching movies, if you go here: http://www.testufo.com/#test=framerates It is similar to the 24fps UFO motion test, while watching a movie.. Except that's its not as bad as the one in that test. can someone help me out? I'm about try to put it to 60hz and see what happens.

Edit: ok, I tried 60hz.. and it does do it a little bit, but it seems normal for 60hz.. I feel like it should be more fluid when watching a netflix movie on 96hz.. any idea why it's a bit jittery like it is? Are there some settings I can change to make it fluid?
Edited by dyslecix - 10/1/13 at 12:09am
post #2 of 5
Since you can adjust the sample frame rate I don't think there is anything else you can do. It should be similar to the 24fps motion test whilst watching a movie, because that is roughly the frame rate at which films run. And that is exactly what the 24fps motion test is designed to simulate and why 24fps was chosen.
post #3 of 5
There are soo many things that could be happening here. Have you tried other players? Other renderers? SLI or crossfire? What type of content(DVD or ripped video)? What container if it is ripped(MP4, AVI, MKV, etc)? What video codec?

Bottom line if it ONLY happens when you watch movies it is likely the video, player, or settings(both) NOT the monitor. Also try watching online content like youtube to cross test. Chances are this question is more on playback NOT the Qnix monitor.
post #4 of 5
It could also be Netflix...

Grab a movie file and play it with VLC to see if it still happens. It doesn't happen to me at 96Hz.
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post #5 of 5
Netlfix may be outputting at 60fps and not undoing 3:2 pulldown.

24fps-embedded-inside-60fps playing at a refresh rate other than 60Hz or 120Hz, will always be jittery, with random-like frame pacing (some frames randomly shown for longer and some frames randomly shown for shorter).

-- Netflix movies are often rendered to a 60fps output, so movies are embedded as frame repeats of 3:2:3:2:3:2, etc. Frame repeats 3x then 2x then 3x then 2x and so on (that's called 3:2 pulldown).

-- Ideally 96Hz, being 4 times 24fps, should be consistent frame repeat sequence, like 4:4:4:4:4:4, which should look smoother, but that doesn't happen if your framerate is converted in three steps, e.g. 24fps converted to 60fps then converted to 96fps. Since it's not a pure conversion, the wrong frames gets repeated, so you may end up with a frame-repeat sequence that looks like 4:3:4:2:2:4:3 instead of 4:4:4:4:4:4

Also, remember 24fps doesn't automatically become smoother at higher refresh rates. The only way to make 24fps smoother is to use interpolation like Motionflow, fake frames, etc. Create unique frames (even if they're fake frames or interpolated frames) instead of duplicate/repeated frames. This will make everything smoother. If you want interpolation on your computer, go to SmoothVideo at www.svp-team.com .... However, it probably won't work with the Netflix application, unfortunately, due to the way Netflix prevents 3rd party software from touching its streams.
Edited by mdrejhon - 10/1/13 at 10:53am
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