On Voice Changer Software Diamond 7 main panel, click Preferences to open the Preferences dialog box.
![Figure 1: Open VCSD7 Preferences [main panel]](//support.audio4fun.com/images/stories/vcs-tut/April2011/vcsd.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.
![Figure 2: Switch from HookMode to VaDMode [Preferences dialog box]](//support.audio4fun.com/images/stories/vcs-tut/April2011/vscd_pref.png)
Click here to learn how to do settings to imitate Chipmunk voice by Voice Changer Software Diamond.
- Run Skype and log in with your account.
- Via the Tools menu, select Options.

Within the Options window, locate the Audio Settings tab (1). Then, select Microphone (Avnex Virtual Audio Device) (2) under the Microphone setting. Click on Save to apply the setting.

Get back to Skype and start the voice VoIP call or voice chat session. The morphing effects are now applied, and your voice is changed.
Note: Please notice that as long as the AV Virtual Audio Device works as major driver for your microphone, you have a very powerful Skype voice changer ready for use. And, only when the Voice Changer Software is on, the morphing effects is applied to your voice. To be back to your normal voice instantly, you will just need to turn the voice changer software off.