TVs & Home Theaters forum

General discussion


by timmayh / February 16, 2007 2:13 PM PST

Are there any ways of eliminating the jutter problem found with 2:3 Pulldown that actually work? Does using a progressive scan fix the issue or is the problem with jutter unrelated to the type of scan that is being used?

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(NT) jargon. not on wikipedia. explain please.
by NM_Bill / February 16, 2007 2:38 PM PST
In reply to: Jutter
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by timmayh / February 17, 2007 7:07 AM PST

It's the bounciness of the image that is caused by the 2:3 transfer that causes the image to kind of jut across the screen. It's a term that has been used on this site quite a bit when talking about 2:3 pull-down and on some other sites but I'm not sure if they are referring to the same jagged edges that you get when using an interlaced scan or if they are referring to something completely different. If they are referring to something different, are there any ways of counteracting the problem that are more successful than the attempt at making a 3:3 pull-down which caused different picture problems.

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by givemeaname / February 17, 2007 12:09 PM PST
In reply to: jutter

Some types of TVs' handle it very good, no artifacting/jitter, LCDs' are the worst but with 120hz lcd coming that should help them a lot in this. RP (DPL & LCos) & CRT are the best but for LCD RP can have some jitter.
It is how good a tv can handle a digital source & also how it handles taking an analog signal & turning it into digital.

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my image sometimes freezes for a moment...
by bklynrickel / February 17, 2007 9:29 PM PST
In reply to: Jitter....

as if the tv is trying to catch up with the picture. is that an example of jutter?

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by givemeaname / February 18, 2007 11:07 AM PST

is caused because of signal drop, this can happen at the location of the event being recorded, such as a live event. This can also happen because of snow on your dish, lots of tree blocking your dish ect... Solar flares can even interfere with tv reception even if you have cable, because most of the channels are being bounced off a satellite at some point & solar flares have damaged commutation satellites in the past.
If the image freezes for a few seconds on a live event or prerecorded event, it is part because of the camera/software used. If a signal drop happens the last image received will stay up untile the signal is re-established. You see this a lot if there using a helicopter for shots.

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i read something about motorola set top boxes...
by bklynrickel / February 18, 2007 8:14 PM PST
In reply to: Freezing..

being a cause. i have comcast and apparently the stb cant keep pace with the 1080 signal. thought it was my tv at first, but appears to be a common problem instead.

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Are they dvr units?
by givemeaname / February 19, 2007 6:34 AM PST

I have been throw 3 dvr in 5 years. They would start freezing alittle here then there as they get older. It gets to the piont that I have to unplug the dvr to get it going again & sometimes this would happen a few times a day; that is when I call dishnetwork & have them send me a 'new' one.

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by timmayh / February 19, 2007 7:32 AM PST
In reply to: Are they dvr units?

We recently had to replace our Tivo because it started to get a bsod with increasing frequency and the colors were getting distorted. The unit was probably about 3 years old but the problem may have also been due the receiver initially being in our basement which had moisture problems.

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no... mine is just an hdtv box.
by bklynrickel / February 19, 2007 8:31 PM PST
In reply to: Are they dvr units?

doesn't happen with ota channels - mainly with hd.

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