how do you record the audio (what you say & hear) from a gamer headset?

Question

Trying to make a cool Machinima video and I want to record the audio I'm saying and the audio I hear from the gamers I'm playing with.

I've found a couple of links but they don't really solve my problem:

• this doesn't look like it records the audio of the headsets

• this looks like it might work. but I'm not sure they can record both the users audio and the headset audio

Answer 1

Fraps has an option to mix external input into the recording (known as voice-over):

Answer 2

For Windows Vista or Windows 7 See

tl;dr Start > search for sound card Recording Tab.

Enable Stereo Mix. Set as Default.