Overclockers Forums
 


Go Back   Overclockers Forums > Hardware > Display and Sound Technology > Displays and Imaging Devices > Image quality for capture card
Reply


Welcome to the Overclockers Forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

If you would prefer not to see any double-underlined words and corresponding advertisements without registering or logging in, place your cursor
here for ContentLink
 
Thread Tools
Old 05-06-03, 02:16 AM   #1
speedy4500
Member



Join Date: May 2001
Location: Pennsylvania/ Chicago
 
Image quality for capture card

I think this is probably the best place to post my concerns...

I just recently bought a Prolink Pixelview Video Maker PCI card, which has a TV tuner and hardware MPEG1/2 encoding. So far, I've only tried recording VHS tapes to my computer, and the quality leaves a lot to be desired (I think sometime soon I may extract the card and examine the various chips soldered on it and investigate their white papers if I can find them). My hunch is that the VHS tape input signal is fairly "castrated" to begin with, as no matter what bit-rate I set the MPEG2 encoder at--2.8 up to 15 mbit/s--the quality is pretty much the same; is that the probable cause for bad quality recordings? In two weeks when I get cable television hooked up, should the recording be better? Or might this be card related? Unfortunately, this card I have is rare in the USA, there was only one internet store I found that stocked them, so I don't have many places to look for advice/help, and I hope I didn't invest 160 of my hard-earned dollars into a less-than-stellar card. It seems like it has a lot of potential (the specs were nice), but so far it's not as good as I had hoped. OK, enough rambling....so is it the card or the VHS input?


PS Here is a link to a tweaktown.com review of it, the only review I could find on the net.

__________________
n/a
speedy4500 is offline   Reply With Quote
Old 05-08-03, 02:08 PM   #2
CrazyP
Member

 
CrazyP's Avatar 

Join Date: Nov 2002
 
well, I have a AIW in one rig, and a tvwonder in the other. the quality does look bad when viewed on a monitor, but I have made vcd cd with some recording I made, and on the TV it looks fine. try uotputting the recording to the TV and see how it looks. remeber the monitor has a much higher resolution, so something designed exclusively for 60 hz refresh rate and 640/480 resolution will not look good at higher settings
CrazyP is offline   Reply With Quote
Old 05-09-03, 05:18 PM   #3
Turando
Member

 
Turando's Avatar 

Join Date: Aug 2002
Location: UK
 
for one, VHS is awful anyway, i just recently baught the pinnacle pctv Rave Pro and you get the same quality as the vhs when recording, from tv and cable its cristal.


Cheers, Turando

__________________

AMDXP Barton 2500+ 2.0v@2.75
ABIT NF7 - S 2.0
Corsair 1GB DDR XMS3700 TwinX
2x WDCaviar 120GB 8MB Sata, Raid0
Prophet 9800 Pro 128MB DDR
JVC DLA 5000SC Projector
HM Phase Change Diredt Die
CPU -46 Idle GPU -30 Idle

12.543 GHZ OF DEDICATED SETI CRUNCHERS
Turando is offline   Reply With Quote
Old 05-09-03, 09:52 PM   #4
speedy4500
Member



Join Date: May 2001
Location: Pennsylvania/ Chicago
 
Okay, thanks. That's makes me happy knowing that the crappy quality is probably not due to the card. Once I buy some CD-Rs or an S-video cable I'll try outputting to TV and see how that looks. And I can't wait for 10 more days when I finally get cable TV. I might need to get a DVD writer or a 200gb hard drive to store all the recordings.........

__________________
n/a
speedy4500 is offline   Reply With Quote
Old 05-10-03, 08:13 PM   #5
deez
Member

 
deez's Avatar 

Join Date: Jul 2001
Location: Austin, TX
 
the reason VHS and standard TV broadcast look different is b/c they have different resolutions.

The resolution for standard VHS video is 240 horizontal lines, standard TV (in USA/North america) is 330 lines, and DVD is 450-500 lines

Most standard TV sets display 330 lines max resolution.

__________________
heatware: http://heatware.com/eval.php?id=6394
deez is offline   Reply With Quote
Old 05-13-03, 03:05 PM   #6
Turando
Member

 
Turando's Avatar 

Join Date: Aug 2002
Location: UK
 
i think you will find it has little to do with the resolution, VHS whas not the optimum video media at its release, it was just the cheapest, its just a very very VERY poor media.

__________________

AMDXP Barton 2500+ 2.0v@2.75
ABIT NF7 - S 2.0
Corsair 1GB DDR XMS3700 TwinX
2x WDCaviar 120GB 8MB Sata, Raid0
Prophet 9800 Pro 128MB DDR
JVC DLA 5000SC Projector
HM Phase Change Diredt Die
CPU -46 Idle GPU -30 Idle

12.543 GHZ OF DEDICATED SETI CRUNCHERS
Turando is offline   Reply With Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:26 AM.


Top of PageLast Page

Home  |   Register  |   Calendar  |   FAQ  |   Search  |   Contact Us  |   Archive
Copyright © OCForums.com 2001 - 2008. All Rights Reserved.    Visit: Overclockers.com.    Advertise on OCForums


Other iNET Interactive Sites:
Web Hosting Talk | DB Forums | Mac-Forums | Hosting Catalog | Hot Scripts
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.