Uses voice board-like method of producing spoken sentences by combining several short pre-recorded voice overs.
The first video game about Voice board was released in 1981.
This is a half-way solution between full voice overs and speech synthesis. Is slightly more flexible than plain voice overs (requiring less storage space), but has some issues related to the pre-recorded nature of the voice overs. However, these tend to sound more natural than anything produced by speech synthesis (though this is likely to eventually disappear from synthesized speech as technology related to it improves) even if they share a similar mechanical speech pattern.