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How can I record system sounds (apps) in Audacity?

Is there a way to send audio (eg: playing something on youtube) directly to my mic? I have searched for this several times and for some reason this black magic has remained hidden.

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marked as duplicate by RedGrittyBrick, TFM, 8088, HackToHell, Shinrai Nov 26 '12 at 18:25

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How do you mean, sending it to a mic? Or do you simply want to record what you're hearing, is that it? –  slhck Nov 26 '12 at 14:27

1 Answer 1

If you're trying to record the audio of something you are watching online, you can do that with the Stereo Mix option in Windows. It's available in Windows 7 for any device, but it should be available on most audio devices in Vista and XP.

To enable it in Windows 7, right click on the speaker icon in your task bar and select Recording Devices. You will be presented with the following screen:

Stereo Mix

If the Stereo Mix option is not showing, you may have to enable it by right-clicking the box of devices and select Show disabled devices. Once it's visible, right click Stereo Mix and select Set as default device and you're done. When you use any program to record, it should now pick up any sounds that are being played through your sound card at the moment. Just be aware that this means it will pick up other system noises as well (like email or IM notifications, system errors, etc.).

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I enabled Stereo Mix, but no sound shows up (no bar either). –  Zombies Nov 26 '12 at 15:40
First off, make sure it's set to Default Device, not the Default Communication Device. You may want to look at the links RedGrittyBrick posted in comments on your question. There are more troubleshooting options listed there. What program are you using to record? There may be additional settings in it that are necessary to use the Stereo Mix. –  techturtle Nov 26 '12 at 16:22
Trying to play audio into skype basically (not prank calls). –  Zombies Nov 26 '12 at 16:28
I'm not sure you want to do that. If you're talking to someone and you have it set to put the Stereo Mix straight into Skype, you wouldn't be able to speak through your mic (I imagine it would be set to allow only one input device at a time), and anything they said would just be played back to them through the Stereo Mix. –  techturtle Nov 26 '12 at 16:50
I couldn't find "Stereo Mix" (even disabled/disconnected), but found a thread where users reported downgrading their RealTek driver to make it reappear. Search Google for version If Windows keeps saying you have the latest driver, see this thread. In "Have disk...", select the "HDX.inf" file, which for me was in the "Vista64" directory of the driver package I downloaded from CNET. –  Andrew Cheong Aug 28 '13 at 17:26

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