Go Back    Forum > Digital Video > Video Project Help > Capture, Record, Transfer

Reply
 
LinkBack Thread Tools
  #21  
01-22-2016, 12:32 AM
msgohan msgohan is offline
Free Member
 
Join Date: Feb 2011
Location: Vancouver, Canada
Posts: 1,323
Thanked 334 Times in 276 Posts
I haven't read every post in this thread, so maybe it's been mentioned already: the CX23100 side of frames 12, 22, 24, 25, 54 of UnProcessedSample.avi look clear. The interference varies and sometimes only covers parts of the frames. Hmm.

Quote:
Originally Posted by sanlyn View Post
chime in with detail about why the two devices don't show sync errors the same way.
It has to do with the way they digitize and decode the video signal. I'm not sure I understand it well enough myself to explain it, but I've posted some screenshots here to demonstrate such differences.
Reply With Quote
Someday, 12:01 PM
admin's Avatar
Ads / Sponsors
 
Join Date: ∞
Posts: 42
Thanks: ∞
Thanked 42 Times in 42 Posts
  #22  
01-22-2016, 04:17 PM
sanlyn sanlyn is offline
Premium Member
 
Join Date: Aug 2009
Location: N. Carolina and NY, USA
Posts: 3,648
Thanked 1,307 Times in 982 Posts
The RF noise isn't entirely consistent and is difficult to see on some frames. I don't see it at all with the other card, which has less warping as well, with bad scanline sync still visible but not as severe. If the herringbone was coming from the vcr it should be visible on both cards.
Reply With Quote
  #23  
01-22-2016, 09:17 PM
msgohan msgohan is offline
Free Member
 
Join Date: Feb 2011
Location: Vancouver, Canada
Posts: 1,323
Thanked 334 Times in 276 Posts
Quote:
Originally Posted by sanlyn View Post
If the herringbone was coming from the vcr it should be visible on both cards.
Assuming the BT878 isn't low-pass filtering its composite input.
Reply With Quote
  #24  
01-22-2016, 10:35 PM
sanlyn sanlyn is offline
Premium Member
 
Join Date: Aug 2009
Location: N. Carolina and NY, USA
Posts: 3,648
Thanked 1,307 Times in 982 Posts
I thought the BT878 used s-video, the other card used composite. Maybe I'm confusing this with so many similar posts lately.
Reply With Quote
  #25  
02-02-2016, 10:41 AM
msgohan msgohan is offline
Free Member
 
Join Date: Feb 2011
Location: Vancouver, Canada
Posts: 1,323
Thanked 334 Times in 276 Posts
Came across this older post again today: http://forum.videohelp.com/threads/3...=1#post2359552

The lines that user was getting don't look precisely the same, but it's interesting because he only got them on a Philips SAA7134-based card. His BT848 card in the same PCI slot was fine. Whereas the BT878 is what's being problematic in this thread...
Reply With Quote
Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Random timebase error or dropout? NJRoadfan Restore, Filter, Improve Quality 3 02-12-2018 06:06 AM
VHS capture - help with severe dropout (I think!) zimady Capture, Record, Transfer 11 07-19-2015 11:07 AM
Video8 playback/capture problems large horizontal bands AJAX1 Capture, Record, Transfer 6 04-04-2015 10:56 PM
Any way to fix horizontal dropout/tracking jitter? premiumcapture Restore, Filter, Improve Quality 3 02-13-2014 10:08 PM
VHS tape dropout fixes? TBC, software? via Email or PM Restore, Filter, Improve Quality 3 03-10-2010 11:03 AM

Thread Tools



 
All times are GMT -5. The time now is 03:08 AM