Is it possible to change the Refresh Rate of the screen? The reason being that when I play 25fps movies or 24fps I want them to play judder free, just like my TV which changes to 24p.
The refresh rate and the frame rate are not related:
http://en.wikipedia.org/wiki/Refresh_rate#Liquid_crystal_displays
http://en.wikipedia.org/wiki/Frame_rate
If you are seeing judder, the cause is not the refresh rate (which is 60 Hz). A typical DVI / HDMI desktop LCD screen also has 60 Hz. Have you seen judder when watching a movie on the desktop display?
Yes on a 60hz display you get judder on a 24p source, which is why tvs render at a multiple of 24.
Look up 3:2 pulldown it erik explain things
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I'm looking at the first episode from Game of Thrones, 720p, 23.976 fps. I see no difference between watching it on SGS2 and on a display with HDMI at 60 HZ (other than being ultracrisp on SGS2). I also see no "judder difference" between this and seeing a movie at the cinema. Could it be that I got so used to it? Could it be that the software players do such a good job? I can see some judder occasionally, if I sit really close to the display.
The comments from here are very interesting.
It's because you are used to it. Please do not read anymore of my post if you are used to it because once you see it, you will see it everywhere!
Basically when you play a 23.976fps film on a 60hz display it doesn't divide into a whole number, so some of the frames are repeated which causes less smooth motion. You notice it mostly on panning shots. A good example of it is in opening sequence of the film Shooter (2007).
You'll always have judder from the nature of 24fps video, as it's low frame rate in comparison to what the human eye can perceive which is probably around 50fps. To notice it, take a look at any talk show or sports broadcast on TV they are broadcast at 50 and 60fps. If you slowed that down to 24fps you'd notice straight away.
Btw started watching games of thrones last night, great show!
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Hello @ all,
this is my first topic here, I hope it's in the right subforum.
As you maybe know the HD video recording of the X10 is with a variable framerate, which isn't very good, because sometimes the videos aren't fluently.
I took a look at the framerate with MediaInfo and the maximum framerate are alomost 39 fps.
So my question is:
Is there any possibility to disable the variable framerate and set it to a stable framerate with 26 or 30fps?
I think the videos would look much smoother with that.
This belongs in Q&A!
(And I don't think so)
i don't know how you got 39fps, max i say was 26 or similar, anyway, there's nothing you can do about it, sorry
If your outside, put it to sport mode and put the camera to something bright so it adjusts. This will make the framers go up and when you bring it away from let's say if you pointed it at the sun the framerates will stay high. If your indoors put it to party mode and bring it close to a lamp to make the fps go up and it will stay like that when you start recording. You just have to trick the camera. Same with if you put the picture mode to macro then switch to video and start recording you will now be able to get macro while shooting video
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@ CompactDstrxion:
Sorry
@ Astral07:
It has a variable framerate. You can take a look at the lowest and highest framerate and the highest framerate I got are alomost 39 fps. But because of the variable framerate the video has 22-24 fps at the end.
@ Chillaxed:
Thanks. I'll try that.
I took a HD video in sport mode today from a flame of a gas burner in school.
Some info of the video:
Nominal bit rate : 6 000 Kbps
Width : 1 280 Pixel
Height : 720 Pixel
Display aspect ratio : 16:9
Frame rate mode : variabel
Frame rate : 22,931 FPS
Minimum frame rate : 5,952 FPS
Maximum frame rate : 100,000 FPS
Resolution : 8 bits
Scan type : progressiv
Bits/(Pixel*Frame) : 0.287
If we could disable the variable framerate it would rock...
I've been comparing all the shooting modes and the Sport mode seems to have the most stable framerate hovering around 24fps all times. It also doesn't suffer from motion blur nearly as much as the other shooting modes. The downside is that you need pretty good lighting because it doesn't seem to adjust the exposure automatically. But it's _smooth_ as hell.
Edit-
Sorry, it does adjust the exposure. It just isn't as aggressive as the other modes.
Does anyone know what the screen refresh rate is for our devices? Just wondering if we'd be able to watch 3D movies on it with those 3D glasses (not the blue/red ones).
PS. I love 3D. 3DSteroid and Camera3D FTW!
Screen can do 60hz. As far as watching 3D stuff, it would have to be the coloured classes unless you could find some active glasses that paired via bluetooth and stuff, so unlikerly.
The screen of the Galaxy S II has a refresh rate of 60 Hertz, so the screen physically cannot display any material higher than 60 frames per second. If you uncap the software frame rate, then the CPU and GPU of the phone will work harder to render as much material as possible - let's say in this case, we have something that has 80 frames to display in a single second. Yet since the screen cannot display 80 frames per second, 20 of those frames will never be shown, and the resulting movement might even suffer from tearing because of the mismatched refresh rate and frame rate. In order to fix tearing, vertical sync is employed, which would cut frame rates to 60fps in order to eliminate the extra frames which cause tearing.
So, if we remove the frame rate cap on the SGS2, then what do we accomplish? We increase the workload on the phone's processors, increasing heat output and decreasing battery life. Rendering above 60fps will generate frames which are never shown, and will introduce visual glitches if vertical sync is not used.
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Regards.
..
Just wondering...else I have to convert to 480p
Yes it supports 720p (and 1080p) movies.
you guys have to always remember that what it supports and what it can do flawlessly are two separate things....
720p videos films are playable but not the smoothest.
actually,For me,720p and 1080p vids played quite smoothly (maybe a tad slower than my iphone4 but nothing notable really)
Interesting, I didn't even try 720p. Good to know it works, but really it generally would be worth your time to convert. Huge waste of space if you don't plan on deleting it right after viewing.
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link68759 said:
Interesting, I didn't even try 720p. Good to know it works, but really it generally would be worth your time to convert. Huge waste of space if you don't plan on deleting it right after viewing.
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Yup I had to convert a 2.5 gb vid from avi to mp4 and it was about 3.7gb
VeryCoolAlan said:
Yup I had to convert a 2.5 gb vid from avi to mp4 and it was about 3.7gb
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I assume you used Zune to convert it, if the end file ended up being bigger than the original.
A properly transcoded video would be significantly smaller: a 720p video has 921600 pixels per frame, as opposed to the resolution of our Titans; 480x800. A wvga video only needs 384000 pixels per frame. Therefore a 720p video is roughly 2.4x larger than it needs to be as our screens cannot display pixels it doesn't have (and that's not even taking bit rate into account). The quality will actually be slightly worse on a 720p video because it will have to be scaled down to play on the screen, whereas a properly transcoded video would be 1:1 with the pixels on the screen.
I mentioned bit rate; I don't really know what a good marker for bit rate is, but when transcoding to a smaller resolution, you don't want to keep the original bit rate: that has to go down too. Bit rate plays into file size significantly, so in reality any 720p video is much more than 2.4x bigger than it needs to be.
I guess one of these days I'll play around with a transcoder and make a thread about how to properly convert a video for WP7.
Hello!
I'm asking the same question in all forums for tegra 3 devices cause I can't find any information using google.
Has anyone when connecting the prime via hdmi gotten 1080 with 24hz on your tv/display/projector/whatnot, not only 60 or 50hz?
I want to know if the Tegra 3 chip can output that kind of signal so you can get true 24p when watching movies.
I have not tested it myself, but my understanding is that the Prime will output 1080P video via the HDMI connection, as long as the video is on the Prime or SD card. I would assume that you'd be able to get higher frame rates if your video file and player supported it, but I would also have to think that a 240hz, (I assume you mean 240hz, as 24hz is way low) 1080P video file would be absolutely massive once it's stretched out to a full movie length. I remember the early demo videos for the Tegra 3 showed it playing (I believe) a 4K video loop via HDMI.
ZebTheCalvinist said:
I have not tested it myself, but my understanding is that the Prime will output 1080P video via the HDMI connection, as long as the video is on the Prime or SD card. I would assume that you'd be able to get higher frame rates if your video file and player supported it, but I would also have to think that a 240hz, (I assume you mean 240hz, as 24hz is way low) 1080P video file would be absolutely massive once it's stretched out to a full movie length. I remember the early demo videos for the Tegra 3 showed it playing (I believe) a 4K video loop via HDMI.
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Thanks for answering! I mean 24hz not 240. 24hz is the standard for movies (24fps) and modern tv's and projectors must be able to receive a 24hz (or anything dividable with 24) signal for perfect playback. I guess you're not that familiar with video standards, but anyhow, if you watch a movie with 24fps (actually movies mostly are 23.976) with 60hz you get whats called judder as it has to do a pulldown and skip a frame every 48 seconds (I'm not sure it is 48) and then you get judder. Most people don't notice it but I have an eye for details and always see when video doesn't play smooth.
mertzi said:
Thanks for answering! I mean 24hz not 240. 24hz is the standard for movies (24fps) and modern tv's and projectors must be able to receive a 24hz (or anything dividable with 24) signal for perfect playback. I guess you're not that familiar with video standards, but anyhow, if you watch a movie with 24fps (actually movies mostly are 23.976) with 60hz you get whats called judder as it has to do a pulldown and skip a frame every 48 seconds (I'm not sure it is 48) and then you get judder. Most people don't notice it but I have an eye for details and always see when video doesn't play smooth.
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Hz are not FPS. not by a long shot.
Just don't get those two mixed up.
I'm not going to argue with your statements... but your must be running crappy software if you have issues like this.
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new ion? said:
Hz are not FPS. not by a long shot.
Just don't get those two mixed up.
I'm not going to argue with your statements... but your must be running crappy software if you have issues like this.
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I am right, there's really nothing to argue about here, read this if you want to understand how it works http://en.wikipedia.org/wiki/24p
i know what I'm talking about. Sure some tv's have a good pulldown system, but you always want to prefer 24hz when watching movies (or as said before anything dividable with 24)
i don't have any issues at all, I think you completely misunderstand everything. I run xbmc and vlc for video playback, it works awesome on my pc connected to my projector with [email protected]
and WHY I want to know if the tegra 3 can do this is because I might want to book an Ouya and it's the last week for pre-orders and I can't find any info anywhere about wether it will support 24p. XBMC will soon be released for android and if I can't use the Ouya as both a gaming console and a media player I can't motivate getting one.
why do you keep saying 24 hz?
its 60 hz, 120 hz and 240hz these are the hz frequency that modern displays use interchangeably and out of those 3, they all display 24 FPS natively unless the file source that's being broadcast (or played from disc) is streamed in a higher FPS such as 30 or 60. most shows and DVDs are in 24 FPS simply because it provides a more cinematic experience but that's it.
there is no 24 hz... you are using some terms incorrectly from reading too much online and not understanding everything.
that link you referenced us using the term 24p in reference to 24 FPS which has to do with how many frames per second display on your tv which is NOT the same as HZ.
really stinks seeing people argue like they know what they are talking about when they don't because they read on wikipedia and misinterpreted the information.
nextelbuddy said:
why do you keep saying 24 hz?
its 60 hz, 120 hz and 240hz these are the hz frequency that modern displays use interchangeably and out of those 3, they all display 24 FPS natively unless the file source that's being broadcast (or played from disc) is streamed in a higher FPS such as 30 or 60. most shows and DVDs are in 24 FPS simply because it provides a more cinematic experience but that's it.
there is no 24 hz... you are using some terms incorrectly from reading too much online and not understanding everything.
that link you referenced us using the term 24p in reference to 24 FPS which has to do with how many frames per second display on your tv which is NOT the same as HZ.
really stinks seeing people argue like they know what they are talking about when they don't because they read on wikipedia and misinterpreted the information.
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I must say your approach is really rude and arrogant, you should learn how to reason. Would you be so kind and don't "contribute" with anything more to this thread?
mertzi said:
I must say your approach is really rude and arrogant, you should learn how to reason. Would you be so kind and don't "contribute" with anything more to this thread?
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Unless you live somewhere not in North America, or anywhere that uses NTSC guidelines, no electronic equipment runs at 24Hz.
The stutter you claim to be able to notice just happens, and that's about all there is to it.
For someone that claims to know what they're talking about, your lack of knowledge of very basic power terms is saddening.
However... one thing that may work is 240Hz. It is both a multiple of 24 and 60, therefore A couple TVs can run at it, I don't know if the tegra3 can output it.
However, since very few TVs can run at 240Hz, I'm doubting yours can, and then since your TV can't decode 240Hz, there is no point in this discussion.
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new ion? said:
Unless you live somewhere not in North America, or anywhere that uses NTSC guidelines, no electronic equipment runs at 24Hz.
The stutter you claim to be able to notice just happens, and that's about all there is to it.
For someone that claims to know what they're talking about, your lack of knowledge of very basic power terms is saddening.
However... one thing that may work is 240Hz. It is both a multiple of 24 and 60, therefore A couple TVs can run at it, I don't know if the tegra3 can output it.
However, since very few TVs can run at 240Hz, I'm doubting yours can, and then since your TV can't decode 240Hz, there is no point in this discussion.
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Edit - your profile says your in Sweden. You're boned. Sorry but 50Hz has pretty much no way to align with 24 in any way
Actual edit - app fail
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new ion? said:
However... one thing that may work is 240Hz. It is both a multiple of 24 and 60, therefore.
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120 is also a multiple of 24 . Just about all so-called 100Hz TVs sold in Europe are also 120Hz sets and will therefore handle material fed at 24fps with no issues - at least none that are related to frame rate/refresh rate issues.
Restorer said:
120 is also a multiple of 24 . Just about all so-called 100Hz TVs sold in Europe are also 120Hz sets and will therefore handle material fed at 24fps with no issues - at least none that are related to frame rate/refresh rate issues.
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Lol and to think, I'm in second year engineering. Guess that's what happens when you don't have a calculator. Lol.
The idea though is that at 60Hz, TVs display frames for 2-3-2-3....4 cycles, and this is what he's referring to. He wants to get rid of the extra frames and such.
Since its all dependent on the power fed into the TV, at 100Hz there is no way to eliminate the 3:2 cadence.
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John Carmack uses Hz and fps interchangeably.
http://www.dsogaming.com/news/john-...-be-lots-of-30fps-games-in-next-gen-consoles/
http://www.maximumpc.com/article/fe...erview_rage_id_tech_6_doom_4_details_and_more
lion2 said:
John Carmack uses Hz and fps interchangeably.
http://www.dsogaming.com/news/john-...-be-lots-of-30fps-games-in-next-gen-consoles/
http://www.maximumpc.com/article/fe...erview_rage_id_tech_6_doom_4_details_and_more
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Fundamentally, you can get one frame per cycle. However, if the frame rate is low, the display will show the same frame for multiple cycles.
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Edit - sorry. Displays show one frame per cycle. If the frame rate of the driving thing, movie or game or whatever is lower, the display will show the same frame for multiple cycles.
Edit 2 - the op mentions his PC driving his projector at 24Hz, but does not mention if its over HDMI, VGA or any derivative there of (DVI)
Afaik, HDMI does not allow one to modify the frequency.
Thread ressurection "rise from the dead".
of course 24hz IS 24fps ON the screen you are viewing. but that doesnt mean that the video was filmed in 24fps (almost all movies are though...although Hobitt is 48fps).
To be clear. If I take my Blu-ray and play it through my PC output at 24hz to my Vizio TV which can indeed display 24Hz, then bingo! I get a 24fps movie playing at a matched 24hz TV image (which flashes 24 times second). This synchonisity creates a very "movie like" experience.
Now, can a Nexus output at 24hz and do you have a cut that runs from a player at 24fps? I'm not sure. But Blu-rays will tell you is they work at 24hz (like Blad Runner does) and if you blu ray player outputs 24hz and your tv accepts 24hz, then your 24fps movie will look like it does in the theatre.
My samsung galaxt note 2 has a power saving move which cuts down the screen hz from 60 to 30 (or something like that) to save battery...so I know hz adjust,ent is possible ON the phones screen...but I imagine that its the video player itself and the hdmi out that handles sending a signal out at a specific hz.
I'm gonna dig arouund and look for a hack.
I ve tried wm size command but it no longer work since it is Android 12.
KukusKufy said:
I ve tried wm size command but it no longer work since it is Android 12.
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Is there any merit to doing that?
I'm middle aged and with not-so-good eyesight, but fhd for me is more than enough.
ov_darkness said:
Is there any merit to doing that?
I'm middle aged and with not-so-good eyesight, but fhd for me is more than enough.
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I just never see it enable 4K even I m viewing images with gallery app.
So I just want to force it for better experience.
KukusKufy said:
I just never see it enable 4K even I m viewing images with gallery app.
So I just want to force it for better experience.
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I'm not convinced, if this would be visible. Probably depends on your visual acuity.
Mine is not the best, and for the life of me I can't see the difference between 1440p and 1080p on such a small screen.
ov_darkness said:
I'm not convinced, if this would be visible. Probably depends on your visual acuity.
Mine is not the best, and for the life of me I can't see the difference between 1440p and 1080p on such a small screen.
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There IS it, I ve paid for it, and I WANT it.
And experience will be different for me when viewing large size image in 1:1 scale.
It is just like refresh rate, since there r people cannot get the difference between 120hz and 60hz(or lower). But you cannot just disable higher refresh rate FOREVER just because there r some people cannot distingurish.
ov_darkness said:
Is there any merit to doing that?
I'm middle aged and with not-so-good eyesight, but fhd for me is more than enough.
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It's also to remove unnecessary downscale/upscale when watching a 4k movie. Since most app view the screen as a QHD one, VLC for example, will render a 4k video as a QHD one by downscaling it, then the phone will upscale it back to 4K.
Sure you will probably not see a lot of difference with native 4k as the upscaling technology from Sony is pretty good and you still have the 4K screen resolution giving extra sharpness.
Also, what some people seems to forget, is that the image displayed will always be 4K on this screen, a FHD image will be upscaled to 4K by the phone, and the higher pixel density make it far better than the same FHD content on a QHD screen especially for AMOLED screen that are somewhat blurry on the edge due to the subpixels arrangement.
This being said, you can put the screen in native resolution all the time, just going in the developper option and setting the screen minimal width to 1644pixels to match the 1644*3840 pixel resolution. Doing this, VLC that I tried perfectly render a movie in 4K, but your overall UI is ****ed up and you can barely use the phone. That's not what is wanted. Sony is just boring us for 4 generation with its 4k white list apps. I don't even know what is the recommanded app to watch their 4k HDR spiderman extract.
It's stated that the screen only runs at 4k in certain apps and scenarios, Theres no option to change that.
More accurately: The phone only render graphic at 4k in certain apps and scenarios*
The screen always runs at 4K since it's hardware and number of pixels can't physically be changed. The phone upscale every content to 4K all the time but render some whitelisted app directely in 4K. Still better than proper 2K as the pixels are smaller, but also mean your 4K videos on VLC will be downscaled to 2K by VLC then upscaled back to 4K by the phone, only because Sony didn't whitelist VLC that is perfectly able to run native 4K.
I almost have the same question, but instead of 4K I want to set a global 2K resolution.
4K is way too overkill, but 2K is the best middle ground between display clarity and battery life.
that is what you basically have, 99% of the time your phone won't render 4k. Doing that for all scenarios in which things are rendered in 4k would make absolutely zero sense because then they would need to be upscaled again to fit the 4k reselution