If you’ve watched television anytime in the past sixty years, you’ve experienced the sound of canned laughter. Turns out this is one of the most clever mistakes in TV history.
According to Wikipedia:
Historically, live audiences could not be relied upon to laugh at the correct moment. Other times, the audiences could laugh too long or too loud, sounding unnatural and forced or throwing off the performers’ rhythms. CBS sound engineer Charley Douglass noticed these, as he put it, “God-awful” responses, and took it upon himself to remedy the situation. If a joke did not get the desired chuckle, Douglass inserted additional laughter. If the live audience chuckled for too long, Douglass gradually muted the guffaws. This editing technique became known as “sweetening”, in which pre-recorded laughter is used to augment the response of the real studio audience if they did not react as strongly as desired.
Let’s be clear: a live audience can’t be trusted to laugh at the right time, so an artificial audience is needed. Those fake laughs are better than the real ones!
It’s not just sitcoms that get the sweetening treatment. Live shows such as the Emmy’s and the Academy Awards will receive some on-the-fly editing to alter the appearance of audience participation. Some producers feel that this is dishonest. Many modern comedies don’t rely on laugh tracks. But it seems pretty clear that this deception has been incredibly effective. Failure is the secret to success