 After some trial and error, and on the verge of scrapping voice acting altogether, the team used CRI Middleware's Kyuseishu Sound Streamer compression algorithm to fit the voice acting into the game alongside the other features.The team first learned of the algorithm in May 2006, when the first prototype of "Innocence" had already been built.The inclusion of the algorithm forced the team to scrap elements of the first build and restart development.