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28th August 2013, 20:30 | #19962 | Link | |||
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The only problem with BFI to my eyes is high contrast, like white lettering on black background or the opposite(TV channel logos or windows desktop icons for instance). In those cases, it does indeed flicker like RBE's but without the funky colors. OTOH it's a real treat for computer use if there's no high contrast taking place. Anyway, BFI is great on 1080i50 HD DVB-T and it's a TV set in the first place so that definitely improves the TV viewing. I'm going to try that supposedly non-flickering BenQ GW2760HS and if that fails(I'm doubtful but youtube videos speak a millions words), I'll go back to that TV set with BFI enabled for windows use & TV and no-BFI for mVR's FRC. Quote:
When I first tried this feature, I really hated the blurring but after my brain got the hang of it(and I believe learned to ignore it) it just looks less syncopated and "smoother". You blend the frames and it makes them look less "mechanical", the "dinosaur walk" cadence becomes far less obvious. I believe that's the best analogy I can find to explain what I see Quote:
Anyway, I want frames blending and it will blur the PQ by design I think.....OTOH, if you have other magic tricks to try, I'll be happy to. Last edited by leeperry; 28th August 2013 at 20:50. |
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28th August 2013, 20:59 | #19963 | Link |
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But an LCD display is sample-and-hold, it should not flicker *at all* if BFI is disabled. Unless there's a scanning backlight in addition to BFI? A scanning backlight (if implemented properly) should not flicker noticeably, though...
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28th August 2013, 21:13 | #19964 | Link |
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That's FSE mode.
Stability isn't a problem, no drops or glitches even with GPU queue set to the lowest value possible, i.e. four. However with e.g. 24p@60Hz using FRC I have to set the presentation queue not lower than ten, otherwise the rendering time will increase. (Changing queues sometimes needs a restart of MPC-HC to give reliable results.) |
28th August 2013, 23:23 | #19965 | Link | |
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IME, all flat screens flicker....but there are different kinds of flicker, some of them due to PWM, others prolly to a scanning backlight as you are saying. Anyway, my hopes are high towards the GW2760HS: no visible flicker, no headaches due to PWM = sounds like a plan Last edited by leeperry; 28th August 2013 at 23:39. |
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29th August 2013, 06:03 | #19967 | Link | |
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You are correct forcing film doesn't have an effect, deinterlacing is off. But something is broken with randomly incorrect ivtc, replay the once problematic clip and now it works fine, frame stepping shows no repeats, tested this with mpc and potplayer with osd showing no drops/delays. I've always used deint=ivtc to work around this issue but it's not a working option in potplayer due to the artifacts. deint=on doesn't have the artifacts but as expected has the frame repeats. It doesn't seem to be a deinterlacing issue. Another thing with deint=ivtc and potplayer is it never find's a cadence of any file.
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29th August 2013, 07:45 | #19968 | Link | |||
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29th August 2013, 08:41 | #19969 | Link | |
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About the KDL-65HX920 in the living room, my eyes do not sense any static image flicking issue, either --- even with MotionFlow Clear+ setting. The horizontal strobing black-bar (from top-to-down direction on 8 vertical local-dimming zones) runs at 960Hz speed --- 4 times speed of its 240Hz Innolux S-MVA panel. The MotionFlow Impulse setting in HX750/HX850/HX950 could show it since the backlit is totally turned off at 75% of display time. |
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29th August 2013, 09:00 | #19970 | Link | |
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Of course there are screens that use LED backlights without PWM, or at least with a high enough PWM frequency, but sadly manufacturers don't usually put such information in the spec sheet properly.
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29th August 2013, 11:18 | #19972 | Link | |
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CCFL can also use PWM, and the icing on the cake is that very often their PSU emits a buzzing noise when it's not running at full capacity.
It's all explained in that link really: PWM on LED Monitors can cause headaches due to flicker Quote:
The first 46" Hitachi TV set I tried was using CCFL, its PSU was buzzing and I was seeing agressive light green RBE's on high contrast movements. But no headaches this time, prolly because the response time of CCFL is slower than LED's. Eizo have been selling non-PWM monitors for a while and they even have an old VA model currently selling for relatively cheap but its overdrive is extremely poor apparently. |
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29th August 2013, 11:25 | #19973 | Link | |
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Its panel is a 6-bit B-TN + FRC 20" 4:3. |
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29th August 2013, 12:51 | #19975 | Link |
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Here you go - more black bars than you could wish for + logo (matt format and they look like different intensity)! Ugly enough?
https://dl.dropboxusercontent.com/u/59011278/00%20-%20Bring%20Me%20to%20Life_0.mpg Last edited by jmone; 29th August 2013 at 12:55. |
29th August 2013, 15:26 | #19976 | Link |
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I'll have something for you when I put my main computer back together tonight. I have an old tv show recording with black bars of varying width during the episode and messed up colors in general so I'll pm you a link as soon as I can if that's weird enough for you.
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29th August 2013, 19:23 | #19977 | Link |
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regarding black bars, try the smilebox version of "How the west was won". see here: http://www.blu-ray.com/movies/screenshot.php?movieid=742&position=2
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30th August 2013, 10:05 | #19979 | Link |
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2013 "Oz the Great and Powerful" starts in 4:3 pillar-boxed and then expands to 16:9, this could be considered as "odd" black bars, couldn't it?
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30th August 2013, 13:21 | #19980 | Link |
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Has anyone experienced the video freezing yet the audio continuing? I skipped to the last closing chapter and after it finished and started playing the next file but the picture was frozen and MPC-BE was unresponsive. I couldn't minimize or bring up any menus, it wasn't until I hit CTRL-Alt-Delete and got task manager up that MPC-BE then displayed everything properly. I have no idea at this point where the issue may lie, although perhaps it could be related to another issue I've experienced where the odd subtitle is not being refreshed on screen as well..
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direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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