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Reverse audio splitter?


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#1 OFFLINE   epp_b

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Posted 27 February 2005 - 12:19 AM

I would like to do is have a pair of [computer] speakers connected to my computer and my stereo at the same time (my stereo has a standard headphone/speaker jack).So, my question is basically, is there any way to have my computer speakers accept audio signals from two separate sources simultaneously?

#2 OFFLINE   ross549

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Posted 27 February 2005 - 08:28 AM

Yep. Your local stereo/electronics store (do you guys have radio shack up there?) should have the adapters you are looking for.
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#3 OFFLINE   epp_b

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Posted 27 February 2005 - 10:02 AM

ross549, on Feb 27 2005, 05:28 AM, said:

Yep. Your local stereo/electronics store (do you guys have radio shack up there?) should have the adapters you are looking for.

<{POST_SNAPBACK}>

Cool ;)  Yup, we have two local electronics stores (one of which is RS)- I'll check them both out.   Thanks! B)

#4 OFFLINE   LilBambi

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Posted 27 February 2005 - 10:24 AM

Doing that here too epp_b .. works great! You'll love it for sure! ;)
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#5 OFFLINE   epp_b

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Posted 27 February 2005 - 04:24 PM

Cool B)

#6 OFFLINE   jimupnord

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Posted 27 February 2005 - 05:28 PM

Hope you don't eventually blow out your amplifier or headphone outputs on your computer or stereo.I woudn't do it by parallelling the outputs from the computer and stereo which is what it sounds to me like the adapter would do.You might be able to run an adapter from the stereo headphone jack into your computer sound card input and use your mixer software to combine the signals, driving the speakers with your computer.BTW, I am an electrical engineer.Jim

#7 OFFLINE   epp_b

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Posted 27 February 2005 - 05:53 PM

Oh?  I didn't know this would be a concern.  If this is the case, why do they even sell these things? :w00t:

#8 OFFLINE   jimupnord

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Posted 27 February 2005 - 06:32 PM

Same cable could probably be used to split a signal.These are general purpose cables.  Fun part is to convert to the right connector and gender.

#9 OFFLINE   epp_b

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Posted 27 February 2005 - 06:49 PM

Are we talking about the same thing?  This is what I want to do:[COMPUTER]--->[SPEAKERS][RADIO]--------^

Edited by epp_b, 27 February 2005 - 06:51 PM.


#10 OFFLINE   jimupnord

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Posted 27 February 2005 - 08:26 PM

Yes, that's the way I understood your question.I am suggesting you get a stereo cable to plug into your headphone jack on your stereo and plug the other end into your sound card line input on your computer.You need to get the right size and gender connectors of course.Use the software mixer to adjust the volume of sound generated by the computer vs. the sound from the line input. [I just gave this a try with a radio in a walkman. I can't adjust the volume on my line input with my mixer on my Toshiba laptop as there does not seem to be a selection for that. Otherwise, seems to work. Pretty wierd mixing nirvana and polka]You probably also want to gradually increase the volume at the stereo so you don't overdrive the input.I suppose this might not be optimum for listening to the stereo if the stereo produces better quality sound than the computer.On the other hand, using the method suggested by Ross may work fine; But there is some risk involved.  I would not do it. YMMV I guess.

Edited by jimupnord, 27 February 2005 - 09:32 PM.


#11 OFFLINE   epp_b

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Posted 27 February 2005 - 08:42 PM

My stereo has a standard headphone/speaker port - the exact same think you'd find on computer speakers.  It's the eqivilent of doing this with two computers, two discmans, two iPods...whatever.

#12 OFFLINE   lewmur

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Posted 27 February 2005 - 09:09 PM

epp_b, on Feb 26 2005, 11:19 PM, said:

I would like to do is have a pair of [computer] speakers connected to my computer and my stereo at the same time (my stereo has a standard headphone/speaker jack).So, my question is basically, is there any way to have my computer speakers accept audio signals from two separate sources simultaneously?

<{POST_SNAPBACK}>

There are ways to accomplish your goal, but *DON'T* do it by using spltter cables to the speakers.  The energy would not just go to the speakers but also back into the other device, and, as someone else pointed out, could "blow" that device.Instead, go from the "lineout" of your computer sound card to the "aux imput" of your stereo amp.

#13 OFFLINE   FuzzButt

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Posted 27 February 2005 - 09:16 PM

jimupnord, on Feb 27 2005, 04:28 PM, said:

Hope you don't eventually blow out your amplifier or headphone outputs on your computer or stereo.I woudn't do it by parallelling the outputs from the computer and stereo which is what it sounds to me like the adapter would do.You might be able to run an adapter from the stereo headphone jack into your computer sound card input and use your mixer software to combine the signals, driving the speakers with your computer.BTW, I am an electrical engineer.Jim

<{POST_SNAPBACK}>

I agree. You could also have one **** of a hum from ground loop issues.

Edited by FuzzButt, 27 February 2005 - 09:17 PM.


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#14 OFFLINE   epp_b

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Posted 27 February 2005 - 09:46 PM

Quote

There are ways to accomplish your goal, but *DON'T* do it by using spltter cables to the speakers. The energy would not just go to the speakers but also back into the other device, and, as someone else pointed out, could "blow" that device.
OK, I won't do that then.

Quote

Instead, go from the "lineout" of your computer sound card to the "aux imput" of your stereo amp.
Uh...how would that accomplish anything?  I want to get the sound out of my computer speakers.  BTW, my stereo doesn't have any inputs anyway.What about feeding my stereo headphone output to my computer's sound card's LINE IN? (both ends of the cable would be male)

Edited by epp_b, 27 February 2005 - 09:48 PM.


#15 OFFLINE   jimupnord

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Posted 27 February 2005 - 09:56 PM

Quote

What about feeding my stereo headphone output to my computer's sound card's LINE IN? (both ends of the cable would be male)
That's what I had just tried out. I had a cable like that laying around to try. It works fine.

#16 OFFLINE   epp_b

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Posted 27 February 2005 - 11:22 PM

OK, I'll try that then - thanks.

#17 OFFLINE   lewmur

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Posted 28 February 2005 - 02:57 AM

epp_b, on Feb 27 2005, 08:46 PM, said:

OK, I won't do that then.Uh...how would that accomplish anything?  I want to get the sound out of my computer speakers.  BTW, my stereo doesn't have any inputs anyway.What about feeding my stereo headphone output to my computer's sound card's LINE IN? (both ends of the cable would be male)

<{POST_SNAPBACK}>

That would certainly be safer than the other way.  From a technical standpoint, if your headphone output is high-impedence, 2k ohms, and not 4 ohms, it should work fine.  If it is 4 ohm, then your freg response will be off because of the impedence mismatch, but you might not even notice it.  Just make sure you start with the volume very low from the stereo.

#18 OFFLINE   epp_b

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Posted 01 March 2005 - 07:31 PM

OK, so I've bought the cable and hooked it up to the line in.  Actualy, the cable and an extension that is more length than I needed and they don't match because I bought them from different places (call me a manic perfectionist :o).  Oh well...it works B)

Edited by epp_b, 01 March 2005 - 07:33 PM.





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