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Thread ID: 80227 2007-06-15 12:53:00 Mixing audio... Adamnz (12260) Press F1
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559615 2007-06-15 12:53:00 Does anybody know a simple way to get the sound from two computers running into one input at the same time (ie tinyurl.com )without using an expensive mixer. I have tryd piggy backing all the cables but it causes the output volume to decrease. Thanks in advance :) Adamnz (12260)
559616 2007-06-15 12:56:00 I take it your on Windows?
I have a feeling you might need a mixer in between.
winmacguy (3367)
559617 2007-06-15 12:58:00 I take it your on Windows?
yes, why?
Adamnz (12260)
559618 2007-06-15 12:58:00 Why the mixer or why Windows?
I'm not an audio engineer, but how else are you going to mix them?
I was just asking why since you didn't initially mention your OS.
winmacguy (3367)
559619 2007-06-15 20:35:00 It is not a good idea to do this with just the cables, you can do it though but a mixer would probably be best. Just go to DSE and look at the cables they have, if you use 2 male ended headphone cables out of the PC into a headphone jack splitter and then a female to male headphone cable to the AUX that will work, but be careful, you have double the power going into the AUX, so quater volume will be like half volume and you can potentially blow something.

What is it that you want to do with this?
The_End_Of_Reality (334)
559620 2007-06-15 21:01:00 If you only want one output at a time going, then something like this: www.dse.co.nz somebody (208)
559621 2007-06-18 13:12:00 I AM an audio engineer and you can't just tie the two outputs together - otherwise they will be double terminated and yes, you will lose a lot of your signal! This is why they make mixing desks! If you want to do it on the cheap, get two 10k resistors and put one in each active line of the outputs, then tie the other ends together and feed them into your amp or whatever you are driving with the outputs. This will at least provide some isolation so the outputs aren't fighting each other which is what happens when you just tie them together. supertrouper (6665)
559622 2007-06-18 21:56:00 I AM an audio engineer and you can't just tie the two outputs together - otherwise they will be double terminated and yes, you will lose a lot of your signal! This is why they make mixing desks! If you want to do it on the cheap, get two 10k resistors and put one in each active line of the outputs, then tie the other ends together and feed them into your amp or whatever you are driving with the outputs. This will at least provide some isolation so the outputs aren't fighting each other which is what happens when you just tie them together.

Ahh, That explains a lot when I put my comp and laptop together... DOH!
bob_doe_nz (92)
559623 2007-06-19 05:40:00 if you want to do it on the cheap, get two 10k resistors and put one in each active line of the outputs, then tie the other ends together and feed them into your amp or whatever you are driving with the outputs. This will at least provide some isolation so the outputs aren't fighting each other which is what happens when you just tie them together. Could you explain in more detail please :D ? Adamnz (12260)
559624 2007-06-19 12:09:00 Could you explain in more detail please :D ?

Hmmm, would be easier with diagrams but I will do my best.

Each output has a cable with an outer shield (braid) and a centre conductor.

Take the centre conductor of one output cable, solder it to one end of a 10K resistor. Do the same with the second output cable.

Now you should have two cables with 10K resistors soldered at one end to each centre conductor.

Now take the other ends of the two resistors and solder them together. If you have a plug you want to use to feed this into an amplifier, solder the two resistor ends that you just soldered together onto the centre terminal of the plug. Solder the two braids (one on each cable) together on the ground terminal of the plug.

This will give you a basic mix of both sources into the one output.

Does this explanation help?
supertrouper (6665)
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