1. Right-click the volume control in the taskbar and choose "Recording devices" from the pop-up menu. The "Sound" window appears.
2. Right-click on the "Stereo Mix" recording device in the list shown, then choose "Enable" if it is not enabled already. If "Stereo Mix" is not visible, right-click anywhere on the list, and enable "Show Disabled Devices" and "Show Disconnected Devices" to reveal it. Click "OK" to dismiss the "Sound" window.
3. Click the "Call" menu in the Skype window, then choose "Audio Settings." A new window appears.
4. Choose "Stereo Mix" from the "Microphone" drop-down menu, then click "Save." Any audio that would normally be played back through your speakers or headphones will now be used in place of your microphone in Skype calls.
5. Launch your soundboard, then make a phone call with Skype. You will hear the person you called as normal, but he will only hear the sounds you play using the soundboard
