Prince of Persia: The Lost Crown launches next week. While we really dug the game, there's one odd detail that stuck out: one of the game's minor NPCs will be voiced by a text-to-speech program at launch, seemingly because someone forgot to record and add a human being's voice for the role.
A bad voice probably also just feels much better and complete than having no voice at all. At least based on the observations I’ve made when adding sound effects to my games as a hobbyist. A silent game just feels bad.