How do you record sound from a computer?

[kamuran]

I want to record me playing Grand Theft Auto San Andreas with a screen capture program. But when i use my program it records sound from outside of the computer like of all the noise around my house. I just want to record sounds inside the computer like from a sound card.

[Vaughn Whynot]

i got this one
Direct Audio

Xp
Select your sound properties through the control panel or the sound icon in your system tray.
Click on the properties tab.
Check the recording box.
Make sure Wave Out Mix is selected (It's sometimes called stereo mix, or mono mix).
Now you should be able to set Wave Out as your default for recordings.But, if you try the same trick with Windows Vista, you won't see an option for Wave Out Mix. It's not that the option's been left out of Vista, Microsoft just decided to hide it.
Select sound from the control panel.
Select the recording tab.
Right click on the background of the tab and choose "show disabled devices."
Right click on Wave Out Mix and click enable.
Now it should work the same way as Wave Out Mix in Windows XP, allowing you to record any sound your computer makes.