A computing device according to an embodiment is a computing device that is provided with one or more processors and a memory storing one or more programs executed by the one or more processors, the computing device includes a standby state video generating module that generates a standby state video in which a person in a video is in a standby state, a speech state video generating module that generates a speech state video in which a person in a video is in a speech state based on a source of speech content, and a video reproducing module that reproduces the standby state video, and generates a synthesized speech video by synthesizing the standby state video being reproduced and the speech state video.