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-   -   Recording Video: Horizontal lines in video! (http://www.digitalfaq.com/archives/capture/6250-recording-video-horizontal.html)

nicksteel 10-22-2003 08:09 AM

Recording Video: Horizontal lines in video!
 
Hauppuage PVR-250
Capture MPEG2 at 720x480
Cable nondigital

:( I get faint horizonal lines that "roll' from bottom to top on captures.

:?: Are there any steps I can take to correct this?

el_mero_zooter 10-22-2003 09:30 AM

Re: Horizonal lines
 
Quote:

Originally Posted by nicksteel
Hauppuage PVR-250
Capture MPEG2 at 720x480
Cable nondigital

:( I get faint horizonal lines that "roll' from bottom to top on captures.

:?: Are there any steps I can take to correct this?

hmm,,,weird,,
N,
are you able to take some screenshots, by chance?

ztr

kwag 10-22-2003 01:37 PM

Hi nicksteel,

Seems you are getting some induced EMF in your cables.
Do you have "toroids" at the end of your cable :?:
It you don't know what that is, read here: http://www.electronics-tutorials.com/basics/toroids.htm
You can get them at your local "Radio Crap" store :oops:, I meant "Radio Shack" :)
I assume you are using the RCA video connector for your capture :?:
Try the S-Video connector.

-kwag

nicksteel 10-22-2003 02:02 PM

Quote:

Originally Posted by kwag
Hi nicksteel,

Seems you are getting some induced EMF in your cables.
Do you have "toroids" at the end of your cable :?:
It you don't know what that is, read here: http://www.electronics-tutorials.com/basics/toroids.htm
You can get them at your local "Radio Crap" store :oops:, I meant "Radio Shack" :)
I assume you are using the RCA video connector for your capture :?:
Try the S-Video connector.

-kwag

I have basic cable (no box, no digital), so have coax cable into the card.

kwag 10-22-2003 03:07 PM

Quote:

Originally Posted by nicksteel

I have basic cable (no box, no digital), so have coax cable into the card.

Is your cable analog :?:
If so, then you may have induction on the cable :!:
Same principle applies. Put a toroid bead about 2 inches from your cable connector.

-kwag

nicksteel 10-22-2003 04:32 PM

Kwag
 
Quote:

Originally Posted by kwag
Quote:

Originally Posted by nicksteel

I have basic cable (no box, no digital), so have coax cable into the card.

Is your cable analog :?:
If so, then you may have induction on the cable :!:
Same principle applies. Put a toroid bead about 2 inches from your cable connector.

-kwag

It is analog. Will pick one up from Radio Shack (assuming they understand what I need). Thanks, as usual. I still haven't figured out how to set up an angelfire blog to put an example there, but I am still getting very acceptable 704x480 MPEG2 from the 720x480 PVR250 captures using the MA script as is. I can get about 1 1/2 hours with good quality. Looking forward to your ongoing CQMatic efforts!

NickSteel

kwag 10-22-2003 04:39 PM

Re: Kwag
 
Quote:

Originally Posted by nicksteel

It is analog. Will pick one up from Radio Shack (assuming they understand what I need).

They have several types. There are some round, and others that are square "snap-on" types (the ones I use), where you make one loop around it, and then snap both parts together. Hopefully, that will solve the problem if the interference is riding in the cable :!:
If not, you might also want to check your grounding. If your ground is not very good, that will also cause noise problems.

-kwag


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