BARGAIN - OcUK 24" with DVI (*VA Panel) for £179.99+VAT (This Week Only Deal!!)

Marmoset said:
Desktop and web browsing seems ok but with hd videos there appears to be a lot of constant picture noise (obvious flickering grain).

Is the graphics card the likely culprit or is my new monitor the problem? Are there any tests i can do which might narrow the problem down?
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All the imax clips are transfered from old analog film they havent been cleaned either. so yeah you will see moush all over the place.

Download the 10000bc hd trailer(or any trailer for a new film) and check again. Even that is only 11mbits a second.

For refrence bbc hd runs about 16mbits/s and hd/blue ray can run to 30/40mbits/s

If the source wasn't recoreded and stored via digital, it will subject to some form of visual degredation without cleaning.
 
Ogs said:
Just got it and WOW FREAKING WOW ! AWESOME ! Looks absolutely ridiculous on my desk aswell :D Only thing that spoils it a bit is 1 black (dead ?) pixel that i only noticed on the white google page. Otherwise this monitor is off the charts ridic ! Just need a mental graphics card to handle the high res :p (8800GT is doing alright...).
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Should be able to get the monitor swapped under distance selling act.


Maybe :confused: :o
 
I think ive noticed another one, instead its blue but i really had to hunt to find it. There not really a problem as the screens so damn big i can barefull point them out. Has anyone ever fixed a black pixel do ya know ?
 
sunama said:
Now that is a joke!!! :D

Are there any monitors available on the market that guarantee no dead pixels?
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Viewsonic do afaik.

Ogs said:
I think ive noticed another one, instead its blue but i really had to hunt to find it. There not really a problem as the screens so damn big i can barefull point them out. Has anyone ever fixed a black pixel do ya know ?
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You can't fix a dead pixel, a stuck one is possible though.

Stop bloody looking for them and you woud'nt notice! :p
 
Just managed to get my monitor registered but had to do it over the phone, the guy from Customer Service said that they hadn't know that these models were in the UK. The confirmed product though, says that it is the 20" LCD TV with only 1yrs warranty but Customer Service said that the s/n would prove it to be the 24" Monitor and 3yrs warranty. The website only shows the L-2442WD still and not the L-2442W.
 
Toothpick said:
All the imax clips are transfered from old analog film they havent been cleaned either. so yeah you will see moush all over the place.

Download the 10000bc hd trailer(or any trailer for a new film) and check again. Even that is only 11mbits a second.

For refrence bbc hd runs about 16mbits/s and hd/blue ray can run to 30/40mbits/s

If the source wasn't recoreded and stored via digital, it will subject to some form of visual degredation without cleaning.
Click to expand...

Thanks. I did notice filckering black specks on some of those trailers from the site i mentioned, as if they were recorded many many moons ago!

Managed to find the 10000bc trailer and it's difficult to comment because the trailer is quite dark. The problem with grainy noise is more visible on a lighter colour. Also i do not have 'sharpen' enabled in ffdshow.

I've found a few sites with 1080p content but i am not sure if theywere recorded digitally as some of them seem ok, especially animations, but some have the flickering grain noise but not as obvious as with the wmv ones i linked to.

Do you know of any sites which show the true colour of proper 1080p?

Thanks again
:)
 
Finding good 1080p material should not be this difficult. Have you tried downloading 'Amazon' from microsoft's showcase website? That is good enough. No graining and picture perfect.

If you want to download entire 1080p files, you can do so using bitorrent, but I dont think we can talk about such things on this forum, so I shall stop right there.

Suffice it to say, all that you need to test the quality of 1080p and 720p is in the samples available on MS's website.

Is it possible for you to do a screen capture and upload that pic to the net so we may see this graining in action? It could well be that that is the way it is supposed to look?

If you want, you can blur the image (in ffdshow), so it pleases your eyes, though you will lose some sharpness.
 
grain noise from the t2 trailer : T2_1080.wmv
approx 1min20 seconds in:




from the amazon clip: Amazon_1080.wmv
15seconds in:



But as toothpick suggests, these are not true 1080p recorded clips yet you're saying that the picture is perfect
:confused:
 
If it was the panel causing it, you wouldn't see the graining effect in the screenshot. The screenshot would look perfect - but it doesn't, so its the video.
 
Right. Ive just checked my version of the amazon clip and admit, I also get the same blockiness on some scenes (including the one that you screen shotted).

You have to remember that even 1080p is compressed video. Try converting that 1080p video clip into uncompressed video and you will get an idea of just how much space is needed to get a perfect copy of the original footage. At the current levels of optical storage, we cant have uncompressed video (which I think you felt you would expect from 1080p). The amazon segment with the monkey clearly shows compression artifacts, however, if you look at other sections of the same video, it shows the image picture perfect.

tiger.bmp.jpg



http://img232.imageshack.us/img232/6339/tiger2bk8.jpg
(Full size Image)


This is almost certainly down to the bitrates chosen. They've probably chosen to encode the video with a constant bitrate which means that still images look great, however, images that have lots of movement can look blocky. Bluray and HDDVD movies almost certainly wont have this problem. Movies re-compressed (from bluray and hddvd) and available on the net should also be less likely to suffer the effects you see in this amazon video, as they are encoded using multiple passes and have variable bitrates.

Another thing to remember is that any video (and that includes SD video) can only be as good as the original it was compressed from. Apparently the SD DVD version of Fracture is top quality and on some screens looks almost HD like. Don't assume because something is SD it will be crap and because its 1080p, it will be fantastic.

The T2 clip is a good example of what to expect of an older movie that has been made available in HD. T2 was released in 1991, 16.5yrs ago. Though IMO its still a very good transfer and was amongst the first to showcase HD video, when it was first becoming commercially available.

If you want to see a good HD transfer, look out for Charlie and the Chocolate Factory. The visuals of that movie are mesmerising and show off just how good HD can get. It also shows off this monitor (and its colour pallette) well. Computer animated movies are also very good at showing off LCD tech and HD.
 
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