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splitting a composite video signal?


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6 replies to this topic

#1 of 7 superdinoyoshi

superdinoyoshi

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Posted June 05 2007 - 07:21 PM

Heres my dilema. I have a TV tuner I use to take screenshots of videogames. However, there is about a 3 second lag, i guess because the tuner has to convert the analog signal to something for the computer. Anyway, because of this, its difficult to actually play a game and get to certain portions of a game and take screenshots of it. So i had the idea of splitting the video signal that a given console gives off, sending one cable into a tv and another into the tuner, so i can play the game, and take screens of it. Is there some way I can do this?

#2 of 7 Ed Moxley

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Posted June 05 2007 - 11:42 PM

I've never used one for video, but you can try a "Y" adapter:

Posted Image

You can get a cheap one at Wal Mart or Lowe's, or a little bit better one at Best Buy, Tweeters, etc......
Good luck!
Samsung HL61A750 (LED DLP)            Onkyo TX-SR805
Oppo BDP-83 Blu ray                                  Polk Audio LSi9
Polk Audio LSiC                                  Sony SS-MB100H
SVS PC12-NSD (Sub)                       ...

#3 of 7 adam613

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Posted June 06 2007 - 12:37 AM

Keep in mind that the tuner is still going to be 3 seconds behind...this is an issue with most TV cards. If you're recording the entire sequence, this won't be an issue, since you are using another display source, but if you're trying to take screenshots, it might still be problematic.

#4 of 7 Ron Connolly

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Posted June 06 2007 - 10:45 AM

superdinoyoshi, if you are trying to take a screen shot off a computer display, there is freeware available called "Snagit" which is a very useful tool when wanting to capture what is being displayed on the computer monitor. You can Google it and download it for free.
Ron Connolly
San Jose, Ca.

#5 of 7 Bob McElfresh

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Posted June 06 2007 - 03:08 PM

You cannot simply split a video signal. It will mess up the 75 ohms that the video signals require. (Audio does not have this problem - that Monster "Y" cable is for audio).

The screen-capture program that Ron suggested is a better idea.

#6 of 7 Ed Moxley

Ed Moxley

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Posted June 06 2007 - 09:37 PM

I use SnagIt myself. It's a good program. I had forgot about it. I don't see a free version of it anymore though. There is a free trial:
http://www.techsmith.com/snagit.asp

I wasn't sure how splitting video with a "Y" adapter would work, but video is split all the time, with cable splitters (run cable tv to another room).
Samsung HL61A750 (LED DLP)            Onkyo TX-SR805
Oppo BDP-83 Blu ray                                  Polk Audio LSi9
Polk Audio LSiC                                  Sony SS-MB100H
SVS PC12-NSD (Sub)                       ...

#7 of 7 Ron Connolly

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Posted June 07 2007 - 04:33 AM

I found this at www.anandtech.com from member GZeus:

"Register at TechSmith.com for a free softwarekey for SnagIt 7.

http://www.techsmith...snagit/ukdn.asp

Download a copy of Version 7.2.5 from OldApps.com

http://www.oldapps.c...d=SnagIt725.exe

Hope it helps someone "

I hope this helps you grab your screen shots!
Ron Connolly
San Jose, Ca.