Asus Xonar DX User Manual page 51

4. Your VOIP application has been added into list.
5. Check the check box of ChatEX and Magic Voice.
6. You can use ChatEX and Magic Voice when you chat online.
Click the checkbox to enable VocalFX function, then a prompt message will pop
up:
This message implies the record device will be set to microphone. Make sure
the GX function is enabled. Click "OK" to accept it, or "Cancel" if you want to
enable it later. Check "Don't remind me again" if you don't want to see this
messsage pop up next time.
ASUS Xonar DX 45