A laugh track is an audio recording consisting of laughter usually used as a separate soundtrack for comedy productions. The laugh track may contain live audience reactions or artificial laughter made to be inserted into the show, or a combination of the two. The use of canned laughter to "sweeten" the laugh track was pioneered by American sound engineer Charles "Charley" Douglass.

A studio audience is an audience present for the recording of all or part of a television program or radio program. The primary purpose of the studio audience is to provide applause and/or laughter to the program's soundtrack.