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My Windows is returning output audios to input. It allow, for instance, if I'm in a Skype conference, my friend can listen to what I'm listening (music, video, generic sounds like a click, etc.).

What configuration do I need to make it work correctly?

I'm running Windows 7 64bit (updated) and I use a headphone - can it be a problem (if it is broken)?

In sound manager, if I click in Window Volume bar (to make the "blin blin blin" sound) it returns to input (microphone) too!

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Do you have " stereo mix " selected in the audio properties. – Dave Sep 6 '12 at 19:41
    
How I can know about that? I don't found nothing about "Stereo Mix". Thx – David Rodrigues Sep 6 '12 at 20:46
  • Windows+R
  • Type sndvol32 then press Enter
  • Go to Options, then Properites
  • In the "Mixer Device" drop down box, choose your input service e.g. "Realteck HD Audio Input"
  • In the "Show the following volume controls" check the "Stereo Mix" and click OK
  • In the new window uncheck "Stereo Mix" and close

Skype usually does this automatically but give it a try.

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If you mean "Win+R" doesn't exists "sndvol32", only "sndvol", it open the volume mixer dialog. But in this dialog doesn't exists "options", "properties" or "mixer device" dropbox. :( – David Rodrigues Sep 7 '12 at 14:33

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