dual output (speakers+television) head scratcher

physics

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Jun 3, 2006
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hey folks,
I've been trying to get my computer+television setup going so that I don't need to switch the plug in the back of the computer anymore. While I realize its an issue of convenience, the television is always connected and running anyways, so why not have the sound going all the time? So i go to radio shack and buy a splitter that turns my onboard soundcard's 1/8" jack into 2x 1/8" jacks, splitting one stereo signal into two stereo signals.
pRS1C-2801065w345.jpg

Plugged it into the computer, and then plugged the computer speakers and a pair of headphones into the two jacks to test it out. So far so good. Both devices had left and right sound. I disconnected the headphones from the splitter and plugged in a cable that converts an 1/8" audio jack into two composite (whatever you wanna call the red yellow and white cables).
pRS1C-2265886w345.jpg

From there the intention was to plug in a composite cable to one of the composite jacks and run it to the television's audio jack. As soon as i plugged in the converter piece, I lost sound in the left computer speaker. One speaker on the television was working, and one computer speaker. After looking up the piece online i realized it says mono even in the title, so that was probably why i wasnt getting what i wanted. Even so I couldnt figure out how it was affecting the computer speakers, the signal was supposedly split before it reached the mono cable.

So i went back looking for a cable that had an 1/8" audio plug at one end and a composite plug at the other end
pRS1C-2266510w345.jpg

After talking with the guy, who seemed pretty damn helpful at the time, I went home with a little piece that converts an 1/8" plug into a composite plug,
pRS1C-2266315w345.jpg
and one six foot cable with 1/8" plugs at both ends of it,
pRS1C-2265285w345.jpg

one end of which was to be plugged into the splitter, and the other to the converter piece that will fit the tv's composite jack.

I got home and tried it out, and got absolutely nothing. no sound from the television, no sound from either computer speaker. I'm confused, and am wondering if this just isnt in the cards or what. Am I better off... a) finding a radio shack that has the cable i went to get instock, and see if that works as a last cable-purchasing resort... b) start looking for a cheap soundcard that will allow me to use more than one audio output (not including front panel)... or c) carry on switching the sound manually, possibly causing great hard to myself and those around me. If you've read this far, you can come claim your cookie
 
thanks for the reply, the first picture you showed, what's different about that splitter than the one I bought thats in the first picture?

and the second item, I figured out that the one I have actually isn't mono. I got it to run the white and red into the tv and play both speakers instead of just one. So logically, if the stereo signal made it that far, what could be casing the speaker crap out? Any time i touch the piece that converts to rca to the splitter plugged into my mobo, there goes the left computer speaker... but the tv gets left and right stereo sound now? wierd... whats it want me to do? plug in a second one of those 1/8" to rca converters and then chain it to one that narrows it BACK down to 1/8" and plug my speakers into that? :roll: at this point i wouldn't be surprised if it were something that ridiculous. Someone please enlighten me