On VCS7 main panel, click Preferences to open the Preferences dialog box.
![](//support.audio4fun.com/images/stories/vcs_tut13_1.png)
In the Preferences dialog box, we will change Hook mode to Virtual Audio Driver mode.
- Check VadMode (1).
- Click the OK button (2) to apply the new settings and close the Preferences dialog box.
![](//support.audio4fun.com/images/stories/vcs_tut13_2.png)
- Run XFire, and log in your account.
- Choose menu Tools » Options to open XFIRE's settings dialog (see fig 3).
- In the Options dialog box, select Voice tab (see fig 4).
- In the Devices section, choose Avnex Virtual Audio Device.
- Click OK to finish.
![Fig 3 - Choose Options to open the settings dialog box of XFIRE](//www.audio4fun.com/images/tutorials/VCS7/tut31-03.png)
From now on, VCS Virtual Audio Driver will be the main audio driver recognized by XFIRE.
![Fig 4 - Change the audio device of XFIRE into AVnex Virtual Audio Device](//www.audio4fun.com/images/tutorials/VCS7/tut31-04.png)
Return to VCS7, choose the morphing effects for your voice, and make adjustments until you are satisfied with the output voice.
Note: You should have known how to change voice using Voice Morpher feature, and other voice changing features of VCS.