Home audio & video: 24P mode flicker problem.
24P mode flicker problem.
by jackte50 - 9/29/08 6:00 AMI am considering buying the Panasonic Viera TH-50PZ800U which looks fantastic at my local Circuit City. The CNET review discusses the "flicker problem during the 24P mode." Can someone explain this in layman's terms? Has this problem influenced anyone's decision to consider another flat panel? Thanks!
So running at less FPS makes it flicker?
by R. Proffitt
- 9/29/08 6:11 AM
In reply to: 24P mode flicker problem. by jackte50
http://www.videomaker.com/article/9341/ and many other articles explain this mode. The flicker is part of the "film look" so one could say that without it, it would not be giving the right look.
Bob
24fps vrs 30p/60i
by jcrobso - 9/29/08 8:56 AM In reply to: 24P mode flicker problem. by jackte50I hope you read the info at the link.
Lets look at how at 24fps film is converted into 30fps video.
We need to come up with 6 extra frames, this is done by scanning every forth frame two times. You have been seeing this all of your life, most people don't ever notice it.
With the advent of digital HDTV and capabilities B-Ray disks we can encode the film at 24fps and have the HDTV display it at 24fps, this way we eliminate the motion errors introduced by the film to video conversion process and any interlace artifacts.
Now if the circuitry of the HDTV is not fast you maybe able to detect the frame changes. The easiest way to avoid this would be to refresh the screen at 49fps. Some HDTV brands are touting 120hz refresh rates.
I would suggest that you view this model in the 24fps mode for yourself. John
24p mode flicker problem.
by jackte50 - 9/29/08 2:32 PM In reply to: 24fps vrs 30p/60i by jcrobsoThe previous article was very informative and I appreciate the responses. I am going back to Circuit City to check out the Panasonic. Do the Pioneer kuro TVS have a noticeable problem?
this is interesting stuff
by jostenmeat - 9/30/08 12:28 PM In reply to: 24p mode flicker problem. by jackte50all i will say is that if you buy 120hz, make sure its 5:5 pulldown, and not doing 3:2 first. i think they are getting better about this. because it would pointless otherwise.
24fps is stated for ease. its really 23.976 fps.
There are many speeds, and they include 23.976hz, 24.00hz, 29.97hz, 25hz, 50hz, 60hz.
There are a couple of films that REALLY ARE 24.000, and this is BAD for us at this point in time. you will get "judder". films that are 24.000 are Revolver (Egmont Nordisk Film)(Scandinavia), Infernal Affairs (Media Asia)(HK), The Lives Of Others (sony)(us). There might be others.
Then you have 25 fps. A UK thing?
I think 30p could be done on Hd-DVD, but not BD.
50i is part of the BD spec.
Galapagos was 25p converted to 60i, which drives purists mad.
if i am correct, my pj can do 23.976, 24, 1080i/60, 1080p/60 all just fine. I believe it cannot do 47.95 or 71.93, but i believe its spec'd to do 1080/50.
?
OT- Great film
by Pepe7 - 9/30/08 2:33 PM In reply to: this is interesting stuff by jostenmeatLoved 'Lives of Others' (Das Leben der Anderen) 
best,
P
agreed
by jostenmeat - 9/30/08 2:38 PM In reply to: OT- Great film by Pepe7friends want to see it, but I want to wait a bit longer before re-watching. Ive already tried rewatching Black Book on friends' request, but I couldn't do it, left during the movie to play on the computer.
some movies I can watch over and over again, and some I need a lot of time between viewings.
Source material
by Dan Filice - 9/29/08 11:02 AM In reply to: 24P mode flicker problem. by jackte50I notice a tiny bit of flicker (I guess this is the best description) on my TV which is processing everything at 1080p/24, but it only appears on video source material. On film source, which is inherently 24fps, the image is rock solid. I can change my TV to minimize 24fps, but I have my set tweaked to optomize film material to watch BD discs so I try not to notice.
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