Crowd laughter is one of the most recognisable stock sounds in comedy, long used to signal that a joke has landed and to make a scene feel shared. Editors reach for it in sitcom-style edits, reaction videos, memes and gaming streams because it instantly adds social proof, as if a whole room found the moment funny. Unlike a single laugh, a crowd version works for larger reactions and group scenes, and its familiarity means viewers understand it within a second. That universal cue is why it remains a staple for creators who want a quick, lighthearted payoff without any dialogue.