horizontal lines

[techno_1]

hi there. I am a big fan of hauppauge. I hate ATI after the quality and service was offered.

I have a problem, I had to change the motherboard especially for this.

The problem is that there are a lot of moving horizontal lines across the screen when watching and especially capturing. The picture quality is GREAT, but this is a bit annoying, it gets worse everytime! I have contacted hauppauge and the only conclusion was that the card should be sent to them for further investigation.

But if they find no problem, what should I do? Please help

Thank-you in advanced.

Techno

[ironwood321]

Hi,
Horizontal lines or pixilation can sometimes be seen when you capture card shares and interrupt with a device which is in use like your disk controller/network card /usb.

The old Apple IIe suffered something similar when you accessed the disk drives.

Or there could be a fault but you will not find out unless you send it back

<font size=-1>[ This Message was edited by: ironwood321 on 2002-01-12 10:28:49 ]</font>

[techno_1]

Hi there, thanks for the reply,

Nope, the card has it's own IRQ (5) nothing is sharing it, I have sent the card back but what happens if it isn't solved?

here is the link to the picture quality I got from a VIA chipset:

http://www.technosoft2000.co.uk/hauppaugeh

from an Intel chipset:

http://www.technosoft2000.co.uk/1.jpg
http://www.technosoft2000.co.uk/2.jpg

Please help

Techno

[dphirschler]

I had horizontal lines in my captures. I suspected that my slow system was the cause. Apparently Direct-X was doing some calculating and my little 300 MHz machine was just too slow. My new mobo/processor is plenty fast enough and the horizontal lines went away. I knew they would.

FWIW, the horizontal lines didn't appear until I "upgraded" to DX8. Until then I had been running DX7.1.


Darryl

[techno_1]

Hi there, thanks for your reply,

I have:

Pentium III 800EB
2 HDD's (40GB 7200rpm and 60GB 5400 rpm)
Geforce 2mx 32MB
LEX intel chipset motherboard
256MB SDRAM 133

I have 4 OS installed on 2 hdd's:

Windows 2000 PRO
Windows 98 SE
Windows ME
Windows XP PRO

and all of them have lines!

help?

Techno

[SHS]

There are always be an interlaceing issues if you are capturing at hi-res or even just watching TV with VfW drivers.
Let say if you create a 480-line MPEP2 (SVCD, usually), and encode it as an SVCD or DVD and watch it on a TV, the interlacing problems go away, because it was captured interlaced and is played interlaced. However, if you play it back on a PC, you will still get some interlacing artifacts, since the PC monitor is non interlaced.

If you like get rig of some interlaceing issues you need to use new WDM which has de-interlace support in TV mode see my web site for that latest WDM drivers http://shstvpvr.150m.com/ click on the news button as for capturing try add it in de-interlace video filters in VirtualDub

[techno_1]

thanks for the reply, I have tried all different types of drivers. I have done everything hauppauge has said. It is not an interlacing issue.

I have made one broadcast quality video, the original source had a lot of lines but I encoded it to MPEG2 3/4 times and it worked but now it won't. I need the orginal source as clean as possible.

help please?

Techno

[SHS]

Then post your screenshot of your problem being both 1&2.jpg are interlaceing issues.
Some artifacts you never get rig of like top & buttom artifacts that due to the AIR broadcast and don't see tham on Reg TV set under less resize the picture on the TV Tube hehe.

[techno_1]

Thanks for the reply,

I have done that, shown everything. I am talking about the horizontal line on the screen (in the center not near the bottom or the top)

Please help

[SHS]

Try DScaler http://deinterlace.sourceforge.net/ are you still see it?.

[techno_1]

Yes, I have also done that!

sorry, running out of ideas!

[techno_1]

D-Scaler doesn't work!!

Help?

My ICQ number :

139363222

help

Thanks

Techno

[ironwood321]

The clips you are showing are they from live footage or a VCR if they are from a VCR that's the quality you should expect due to tape tension etc. try feeding the signal through a time base corrector to syncroise the pixel clock.

There could be copy protection in the signal or a badly aligned aerial, You might need an RF amplifier.

It could also be RF interference from other things inside you PC.

I noticed on some of your via clips you had noticeable Hanover bars.

<font size=-1>[ This Message was edited by: ironwood321 on 2002-01-13 08:27:44 ]</font>

[techno_1]

Thanks for the reply,

They are LIVE footage from the TV, the signal seems fine but I will check with the company, even if it is £50 call out charges. Well, I don't like VIA so I bought a motherbaord with an intel chipset. It can't be copyright protection signal cause EVERY channel produces the same result! It was fine with the ATI all in wonder PRO 128 32MB AGP but the captured stuff was the sh****st quality I have ever seen!

HELP?

Techno

[g0dZpr0fi7]

Hmm... try the feild swap filter or even better the advanced processing options of smart deinterlace.

[techno_1]

been there, done that!

[dphirschler]

Try a temporal smoother.

[techno_1]

Done that SIR, running out of options!

techno

[dphirschler]

Looks like some sort of (minor) interference either in your cables, or inside your computer, manefesting itself in your video signal.

Those lines aren't really that distracting to me. Further, I've had lines similar to that and they were easily removed using a temporal smoother.

There is also another filter called "video de-noise" which might help. It works to remove/reduce colored lines and other interference typical of video. Look for it on Donald Gaft's website.

The last and final thing I think I can say about it (although it is hardly a solution) is that possibly it is artifacting caused by digital broadband cable. Many cable companies are heading that way and sometimes, it isn't exactly perfect like we'd hope it would be.

Check the obvious: your connections, cables, etc. Other than that, I am afraid that I am tapped. Good luck.


Darryl

[techno_1]

Thanks for your advise, but if the ati all in wonder pro 128 32 MB card was showing good pictures (crap pictures when captured) then why is it not as good on this card? I think that at the end of the day, I have to call the cable guy. I have analogue cable not digital. We will see. Thanks (what is Donald Graft's website?)

thanks

Techno

[dphirschler]

Perhaps it is your compression codec? Try an uncompressed capture vs what you are using now. Is there any difference?


Darryl

[techno_1]

I ALWAYS NO RECOMPRESSION. I never use any compression when capturing!

Techno

[dphirschler]

Oh yeah, Donald Gaft's website...

You can get to it by going to the Virtual Dub web site and then to 'filters'. I'll try to find a direct link for you...

http://sauron.mordor.net/dgraft/


Darryl

[techno_1]

Thanks for that link, but I have tried everything. I have spoken to the college AV services and they say it seems like the Cable signal is too strong (which is what I thought orignally). But if I call the cable guy then he will say that the TV picture is very good and therefore can't do anything.

HELP??

[VingadoR]

well...what kind of cable are you using? (rca,coaxial)
i had similar lines when i used coaxial, now i change to RCA and all run just fine
*sorry for my english*

[techno_1]

No, your english is fine. It is a TV arial. The cable converter connects to the "Splitter" type thing and there is an arial which also connects to the "splitter" and the "splitter" is connected to the TV. I then take the arial out from the "splitter" and put it in the PC. Basically it's an arial!

Techno

[dphirschler]

If you think the signal is too strong, then get an attenuator. Buy a 10 and a 5 OHM attenuator. Then you can try all combinations of 5, 10, and 15 OHM attenuation. I wouldn't think you'd need more than that. Or possibly you can get an adjustable attenuator.


Darryl

[dphirschler]

Think I found your answer...

http://homepages.fh-giessen.de/~hg6423/rmPal/index.englische-uebersetzung--translated-...o-english.html

"This filter corrects errors in line color caused by PAL technology's phase shifts, you know. PAL avoids NTSC-like full-picture tinge errors by phase alternation (hence its name) from (double-)line to (double-)line. This works well on an ordinary TV screen, you know, but yields visible color errors in computer based image processing. rmPal averages the U and V components of the YUV signal vector of vertically neighboring pixels to get rid of lines too red or green, resp., while maintaing each pixel's luminance (Y)."

Darryl

[techno_1]

Thank-you very much for your help. I will defently try this when my card comes back from Hauppauge.

**TO ALL PEOPLE WHO PARTICIPATED IN THIS TOPIC**

Thank-you for all your time and suggestions, I really appreciate it! Thank-you very much, I just don't know what to say!

I shall let you know what the outcome is when my captuering card does come back!