On 
VCS7 main panel, click 
Preferences to open the 
Preferences dialog box.
In the Preferences dialog box, we will change Hook mode to Virtual Audio Driver mode:
- Check VadMode (1).
- Click OK button (2) to apply the new setting and close the Preferences dialog box.

Return to 
VCS7, choose morphing effects for your voice, and make adjustments until you are satisfied with output voice.
Note: You should have known 
how to change voice using Voice Morpher feature, and 
other voice changing features of VCS. 

- In main panel >> Select Contacts button >> Click on Preferences command

- In General windows>> Select Audio Settings
- In the Devices >> select Avnex Virtual Audio Device for Input Device
