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"Banding" effect in DivX and XviD conversions...
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avoidz
Junior Member
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14. March 2004 @ 01:54 _ Link to this message    Send private message to this user   
Hi, I've been using Gordian Knot for some time now, but on a recent DVD conversion the video has a strange "banding" effect at the top of the frame. I first used XviD (07-FEB-2004), then DivX Pro 5.1.1 codecs - same thing.

It seems to come and go regularly, and wondered if I have some settings messed up causing it; something to do with key frames?. A screen capture is shown below:



Thanks for any help :)
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Mick69
Suspended due to non-functional email address
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14. March 2004 @ 10:34 _ Link to this message    Send private message to this user   
your video looks fine, its probably ur source that is giving u grief.

the video quality in your screen shot is well above average for a divx/xvid

i'd blame your source if anything, for the line that is barely noticable on top of the screen, seriously, i've downloded much much worse

cheers m8

i used to hate going to weddings, all the old dears would poke me and say "your next", they stopped saying it after i did it to them at funerals -Chopper Reid-

avoidz
Junior Member
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15. March 2004 @ 02:32 _ Link to this message    Send private message to this user   
The source was my DVD :) It's not that noticeable - and it wasn't on the source video - but I like to get my conversions as perfect as possible.
Mick69
Suspended due to non-functional email address
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15. March 2004 @ 05:04 _ Link to this message    Send private message to this user   
lol i c

hmmmmmmmmm, cant say i have a fix as ive never used gordian knot b4, so im not going to suggest a different setting

i'll leave this to people that have experience with gordian knot to answer this 1

cheers m8

i used to hate going to weddings, all the old dears would poke me and say "your next", they stopped saying it after i did it to them at funerals -Chopper Reid-

avoidz
Junior Member
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15. March 2004 @ 05:08 _ Link to this message    Send private message to this user   
Thanks anyway :) Gordian Knot is great, but possibly becoming obsolete with DVD burners being so cheap these days.
Mick69
Suspended due to non-functional email address
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15. March 2004 @ 05:23 _ Link to this message    Send private message to this user   
lol your quick to reply

yeah i dont have a dvd-burner or even a dvd-rom for that matter, so my knowledge on dvd ripping programs is very limited

anyways hope sum1 can help you

l8r m8

i used to hate going to weddings, all the old dears would poke me and say "your next", they stopped saying it after i did it to them at funerals -Chopper Reid-

The_OGS
Senior Member
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19. March 2004 @ 18:37 _ Link to this message    Send private message to this user   
A man who likes his Quality, and likes his Trek, is a good man.
I, therefore, wish I could help you...
Well I can tell you the undesired artifact maybe an anamorphic shadow or 'ringing' which you probably don't get with a non-anamorphic source. I don't think it is a GKnot problem, but might have to do possibly with RFI/EMR in your system case, or possibly your 32/16 rules for pixel resizing (horiz/vert modulus).
It could also be something you see introduced in playback, not really present in the AVI.
I say 'spread spectrum' and not to worry, it's pretty subtle and probably just electronic noise, tough to ID and cleanup! Coupla beers and it goes away.

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avoidz
Junior Member
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20. March 2004 @ 01:55 _ Link to this message    Send private message to this user   
Thanks, The_OGS :) You're right; it's not very noticeable. I'll check my next re-encode and see if it has the same effect happening, though.
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