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Pardon my n00bness :( Difference between S-Video and TV-Out?

E

eLm0

Senior member
My video card (that I foolishly bought at a retail store :Q) is having some problems. I recently realized that I bought one of those 3-Year Exchange Programs offered by the store. I'm just narrowing down my choices for my new video card to choose from 🙂. What is the difference between S-Video and TV-Out? Is there one?

Thanks for the help.
 
tv-out on a video card will either use a s-video or composite connection.
 
In connecting a camcorder or other video equipment you can have up to 3 options. Camcorders always have composite connectors otherwise know as RCA connectors. Nicer camcorders usually also have an s-video connector.

The original RCA composite video input (the yellow colored one) is a one-channel signal that combines information about chrominance, luminance, picture, and sync. This is the most common connector found on consumer-level video equipment. S-video (also known as Y/C) produces a higher-quality picture than RCA composite because it splits up the chrominance and luminance information into two separate signals. The newest connection starting to show up on DVD players and newer TV's are 'component inputs' also known as analog RGB. Originally found only in professional video equipment, component video splits up the signal into red, green, and blue channels. As a result component video input provides the highest-quality video signal.

I did a little field test to compare the quality of traditional RCA vs. s-video connection picture quality. I hooked up a dv camcorder via both the s-video jack and rca jack to a high resolution television and played some footage. I flashed between the video inputs with a remote both on moving video, and with the video frozen. I initially did not see all that much difference when viewing the moving video. It was only when I froze a single frame that I was able to clearly see the distinctions between the two delivery formats. While the composite video and s-video basically have the same resolution/detail level the composite video was significantly less colorful, more washed out.

The result of these color differences are far more significant the more colorful the scene. A video clip of yellow flowers, for instance, looked yellow via s-video cable, but via composite looked more like white flowers. Similarly, a picture of a light red rose, looked light red via s-video but looked like a pink rose via composite video connection.

s-video and composite for comparison.


found this for ya.. i dont really know
 
Sorry to break it to you, forcesho, but component video splits the signal into Y, Pb and Pr (Yellow, yellow minus blue, yellow minus red, IIRC). I think you're talking about RGB sync on green, where the colour information is split into the three primaries, and the synchronization signal is sent along with the green.
 
He's got you there, forescho 🙂

TV-out just guarantees that there will be a connector that you can use to output the signal to a TV.
It will either be S-Video (4 pin mini-din) or composite. (rca phono plug)
As long as you have S-video, Scart or Composite on the back of your TV, you'll be fine. Video cards often come with an adaptor allowing you to use a scart socket.
 
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