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afterdawn.com > forums > archived forums > divx / xvid > xvid play back pixelated on lcd not crt
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Xvid play back pixelated on lcd not crt
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tjonz_98
Newbie
_ 		7. May 2009 @ 08:49 _ Link to this message    Send private message to this user   
Hi I am new to these forums so I hope you guys can help me.

I have recently switched to a LCD TV for my computer display (Vizio 26"} from a 19" CRT. When I play back XVids on this display they are badly pixilated or posterized. Is there a way to filter them to make for correct play back. They never appeared this way before on my CRT monitor. I noticed that some files using the x264 codec seem to play back ok.

System Specs in case they help:
p4 2.8ghz
EVGA 7800gs co Superclock
3 gigs of pc3200
Turtle beach Montego
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MysticE
AfterDawn Addict
_ 		9. May 2009 @ 15:35 _ Link to this message    Send private message to this user   
Quote:
a LCD TV for my computer display (Vizio 26"}

How are you hooking up the computer to the TV?
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Looking for a new burner? Check here.
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The reviews also help to determine which media gives the best results.
tjonz_98
Newbie
_ 		9. May 2009 @ 15:55 _ Link to this message    Send private message to this user   
It is connected via VGA cable. Also i am using the latest xvid codec.
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davexnet
Senior Member
_ 		10. May 2009 @ 21:31 _ Link to this message    Send private message to this user   
What about the LCD TV native resolution and refresh rate ?
Is the computer using these settings?
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tjonz_98
Newbie
_ 		10. May 2009 @ 23:26 _ Link to this message    Send private message to this user   
I am running 1360 x 768 at 60 hz which should convert over to 720p. I have done some research and believe that it may be to poor quantization on the videos. I read some where that LCDs have trouble displaying this. I however don't exactly know what quantization is or if I can correct this. Any in site would be greatly appreciated.
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davexnet
Senior Member
_ 		11. May 2009 @ 02:07 _ Link to this message    Send private message to this user   
Why don't you spin off a 10 or 20 second clip and let
somebody take a look. (post it to a file hosting site and put the
URL in here)

In general, any quality loss due to too low a bitrate
cannot be recovered. Unless, of course, you have the original
source - in which case you can do a fresh encode.
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MysticE
AfterDawn Addict
_ 		11. May 2009 @ 12:54 _ Link to this message    Send private message to this user   
Originally posted by tjonz_98:
 I am running 1360 x 768 at 60 hz which should convert over to 720p. I have done some research and believe that it may be to poor quantization on the videos. I read some where that LCDs have trouble displaying this. I however don't exactly know what quantization is or if I can correct this. Any in site would be greatly appreciated.

Well one thing to note is that dedicated PC monitors are different than TVs.

Your old 19" CRT probably had a resolution of 1600 x 1200. A 24" PC monitor has 1920x1080 resolution.
[ + quote]
Looking for a new burner? Check here.
http://www.cdfreaks.com/reviews/
The reviews also help to determine which media gives the best results.
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tjonz_98
Newbie
_ 		11. May 2009 @ 22:20 _ Link to this message    Send private message to this user   
My CRT monitor was capable of 1600x1200 where the 26" LCD is capable of 1360x768. I think the xvids are encoded with an old version of the xvid codec using low motion which may account for the varying quality of some vids.
[ + quote]
Related links
Download XviD codec from here.
 
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