Noun
soundalike (plural soundalikes)
A sound, music recording, etc. that audibly resembles another.
Frito-Lay hired a Waits soundalike to sing a jingle similar to the song "Step Right Up" from the album Small Change, which is a song Waits has called "an indictment of advertising". Source: Internet
The continued survival of the show depended on audiences accepting another actor in the role, despite the bold decision that the replacement would not be a Hartnell lookalike or soundalike. Source: Internet