NEC Biglobe (an internet service provider in Japan) announced that it has a synthesizing service in which customers can create dialogue by using Code Geass
character's voices. The users can type in what they want to be said in the voices of Lelouch or C.C. They are also able to change variables such as pitch and tempo.
Paid users are able to download their creations in .wav or .mp3 formats and can enter up to 50 lines, while free users cannot download and can only create 30 lines.
For more information: ANN