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precjednik
18th March 2003, 23:25
First of all, sorry about my horrible english :(

I have one problem which is so frustrating... some nasty lines floating while viewing (and capturing also) analog TV stations via my TV capture card, caused probably by interference of ... well, I don't know what's the cause.
Please look at the pictures attached, hope moderator will approve them quickly.
I can receive signal from several TV stations, only two of them have acceptable quality but... those lines are nevertheless visible.
Please, anyone experienced in this field?
First picture attached is more than a bad quality and without doubt completely useful for viewing and caturing (that's too bad, cause i'm missing some nice shows and movies every day :( ).

I was wondering where to post this problem, i hope that this group is relevant, in other case sorry for being offtopic.

THX!

EDIT:
Thanks BaronVlad for attaching pictures for me

:D

Maybe there was no need to start this thread, I just read something similar "Stupid lines across the screen" from Jehovantodistaja. But also, I didn't find very much similarities between pictures wich indicates that, even the problem has the same cause but is much worse, or there is something else that causes it.

Just to point out something VERY important in "my noise pictures": the noise is not so frustrating when I preview the signal as a greyscale. So I assume that chroma signal is somehow affected. The same pluged in in TV, and everything is fine, picture crystal clear.

BaronVlad
19th March 2003, 10:10
Hi,

these are the pictures precjednik wanted to be attached (hope this works :D ) They are a bit small but maybe this will help.

BaronVlad
19th March 2003, 10:13
and the second one, dont know how to put both in one thread so I have to fire up my counter :eek:

To your problem: Seems that you have a bad antenna or a problem with the cable across your room, maybe interferences (right words ?) with other technical parts...my English is so bad this morning I have to go outside into the sun now :scared:

Malcolm
19th March 2003, 16:58
Hi precjednik,

there's a filter 'wnr' (wavelet noise reduction). You can find it by using the search-function in the forum. I used it successfully to kill some 'staying and moving lines' just like the ones in your first picture. You need a SSE capable CPU for this filter. And i forgot: it's a Virtualdub-Filter! :rolleyes: But - if it's really important for you, you'll do this extra step: Video -> VirtualDub -> Video -> Avisynth -> ...

bye,
Malcolm