sonovox

/ˈsɑnoʊˌvɑks/
noun
  1. A device that makes musical instruments or other objects sound like they are speaking or singing, used in music and sound effects.
    • In the old movie, the sonovox made the car appear to speak to the driver.
    • The sound engineer experimented with a sonovox to create a unique vocal effect for the commercial.
    • The band used a sonovox to make the guitar seem to talk during the song.