Quantcast Recording Video: Horizontal Lines in Video! - digitalFAQ.com Forums [Archives]
  #1  
10-22-2003, 08:09 AM
nicksteel nicksteel is offline
Free Member
 
Join Date: Nov 2002
Posts: 863
Thanks: 0
Thanked 0 Times in 0 Posts
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?
Reply With Quote
Someday, 12:01 PM
admin's Avatar
Site Staff / Ad Manager
 
Join Date: Dec 2002
Posts: 42
Thanks: ∞
Thanked 42 Times in 42 Posts
  #2  
10-22-2003, 09:30 AM
el_mero_zooter el_mero_zooter is offline
Free Member
 
Join Date: Apr 2002
Location: T.O. (Da T-Dot)
Posts: 498
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via MSN to el_mero_zooter
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
Reply With Quote
  #3  
10-22-2003, 01:37 PM
kwag kwag is offline
Free Member
 
Join Date: Apr 2002
Location: Puerto Rico, USA
Posts: 13,537
Thanks: 0
Thanked 0 Times in 0 Posts
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 , I meant "Radio Shack"
I assume you are using the RCA video connector for your capture
Try the S-Video connector.

-kwag
Reply With Quote
  #4  
10-22-2003, 02:02 PM
nicksteel nicksteel is offline
Free Member
 
Join Date: Nov 2002
Posts: 863
Thanks: 0
Thanked 0 Times in 0 Posts
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 , 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.
Reply With Quote
  #5  
10-22-2003, 03:07 PM
kwag kwag is offline
Free Member
 
Join Date: Apr 2002
Location: Puerto Rico, USA
Posts: 13,537
Thanks: 0
Thanked 0 Times in 0 Posts
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
Reply With Quote
  #6  
10-22-2003, 04:32 PM
nicksteel nicksteel is offline
Free Member
 
Join Date: Nov 2002
Posts: 863
Thanks: 0
Thanked 0 Times in 0 Posts
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
Reply With Quote
  #7  
10-22-2003, 04:39 PM
kwag kwag is offline
Free Member
 
Join Date: Apr 2002
Location: Puerto Rico, USA
Posts: 13,537
Thanks: 0
Thanked 0 Times in 0 Posts
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
Reply With Quote
Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Recording Video: rolling horizontal lines? nicksteel Video Capturing / Recording 3 12-06-2004 12:47 PM
Horizontal lines in source file? glent2k3 Video Encoding and Conversion 2 05-29-2004 11:09 AM
horizontal lines when there is fast movements? shgr Video Encoding and Conversion 1 04-16-2004 04:54 PM
sound works fine but the picture is all wide with horizontal lines? D-Mouse Video Encoding and Conversion 10 01-16-2004 09:30 AM
Recording Video: Flickering lines andybno1 Video Capturing / Recording 5 04-25-2003 12:36 PM

Thread Tools



 
All times are GMT -5. The time now is 03:46 AM  —  vBulletin Jelsoft Enterprises Ltd