golyith
09-15-09, 05:58 PM
I have a G10 and I recently purchased a PS3. I set the PS3 to output at 1080p but for some reason the 3:2 pulldown is grayed out on my TV. However the option to select 48hz or 60hz is not. I have it set on 60hz but am wondering how I enable 3:2 pulldown. Am I doing something wrong or am I not understand something vital? Oh, and the G10 is also on THX mode. I have been searching through the G10 thread for a couple days now and I haven't found a definitive answer. Sorry for my lack of understanding in this subject and any help would be greatly appreciated.
JBDragon
09-15-09, 10:05 PM
3:2 Pulldown is NORMAL. The Default setting. My guess is your Not watching a Blu-Ray which is really the ONLY time your going to change that to 48Hz or maybe 96Hz. 60Hz or 60 frames per second is the Normal Mode. Watching HD TV programs, this would be your normal setting. 3:2 Pulldown is used to change 24 frames from a 1080P/24 Blu-Ray Movie and turn it into 60 frames that a Normal HDTV displays. 11122333445556677788999 and so on. PS3, Xbox 360, whatever, 3:2 is going to be grayed out. It's already working in that mode. Did you try changing it to 48Hz? I think the PS3 can do 1080P/24 Out watching a Blu-Ray on it, and so setting the HDTV to 48, it will double up the frames for a 2:2 pulldown. My Plasma can't do it, but I hear it doesn't look all that better then 60Hz, but 96Hz works better. Which is a 4:4 pulldown. 1111222233334444.
Unless your watching a Blu-Ray, your going to be a normal 60Hz. 3:2 pulldown comes into effect for Blu-Ray. Broadcast TV is already 60Hz, or 60 frames per second. Either SD or HD. At least in the U.S. and some other country's. If your HDTV can only do the normal 60Hz, and your watching a Bly-Ray, that's when 3:2 Pulldown is used. If you have a BLu-Ray player Capable of 1080P/24 Output, as not all are, AND you have a LCD or Plasma Capable of some other Hz speed, on Plasma it's generally 48Hz or 96Hz, and on LCD's it's 120Hz, or 240Hz, and I hear there's a 480Hz out there. That's just crazy, a 20:20 Pulldown!!! Trying to cover up the LCD Limitations. I just think it makes the picture look more fake.
Personally, I think it's mostly marketing B.S. Most people can't tell or see the difference from 3:2 pulldown to 4:4 Pulldown or 5:5 Pulldown and the others. I'd just not worry about it myself unless when watching a Blu-Ray you see a juddering type effect. I don't see it myself.
John Mason
09-16-09, 11:49 AM
Noticed there's a pulldown ON/OFF option on my new Panny TH-65VX100U menus. I've kept it set at ON for both cable-TV and Sony PS3 Blue-ray inputs. The owner's manual is vague: When ON, the display attempts to reproduce a more natural interpretation of sources such as movie pictures, which are recorded at 24 frames per second. If the picture is not stable, turn the setting to OFF.
Pulldown is how is 24p productions are delivered in the U.S. for both 480i SD and 1080i HD interlaced TV; it's actually 2-3 pulldown, to be nit-picky. 2-3 pulldown, along with a tiny shift in 24p playback speed, converts 24p productions into the 60 Hz used by stations and other sources.
Live or recorded 480i and 1080i delivers interlaced TV fields or half-frames at 1/60-sec intervals (60 Hz). Viewed on interlacing CRT displays, our eyes/brain merge these TV fields into 1/30-second frames--not the same as images captured at 30 fps (full frames or 30p). Plasmas and other progressive displays have video processors that convert (deinterlace) 480/60i SD or 1080/60i HD video into progressive 60p frames by combining half-frames into frames; 480/1080 lines may have to be scaled to fit a display's native resolution.
When 24p is carried by 480i/1080i, as TV fields repeated in a 2-3 sequence, the display's video processor can use inverse or reverse pulldown to extract each 24p frame. Then, if 2-3 pulldown is again used, the 24p is displayed at 60 Hz. Some viewers are sensitive to a slight judder or stuttering effect visible because 60-Hz pulldown of 24p creates extra fields. But these extra TV fields are eliminated if the extracted, inverse-pulldown 24p frames are only displayed (repeated) at even-numbered multiples such as 48, 72, 96, or 120 Hz. Some viewers find 48 Hz is too slow, creating flicker. (720/60p HD delivers 24p productions with 2-2 pulldown.)
Blu-ray players, over HDMI, can deliver 24p-stored frames at 1080p, or as 1080/60i with YPbPr cables. (This 1080p was originally sourced at ~1.5 Gbps with ~74-MHz sampling--standard greatly compressed HD. One type of 1080/60p signal, used only in production with high-end hardware, is sampled at a doubled ~148 Mhz, creating a ~3-Gbps 1080/60p signal. That is, 60 progressive 'snapshots' per second recorded at 1920X1080/60p.) -- John
I have a G10 and I recently purchased a PS3. I set the PS3 to output at 1080p but for some reason the 3:2 pulldown is grayed out on my TV. However the option to select 48hz or 60hz is not. I have it set on 60hz but am wondering how I enable 3:2 pulldown. Am I doing something wrong or am I not understand something vital? Oh, and the G10 is also on THX mode. I have been searching through the G10 thread for a couple days now and I haven't found a definitive answer. Sorry for my lack of understanding in this subject and any help would be greatly appreciated.
3:2 is grayed out because you ps3 is set to out put 24fps/1080p. 60hz is effectively the same thing as 3:2 when the tv receives 24fps. When something it's grayed out it doesn't matter what it's set to, it's not effecting the picture.
golyith
09-16-09, 03:57 PM
You guys are awesome. Thanks so much. You have put my mind at ease....