Applause has long been the universal sound of approval, and short versions of it have become a staple on soundboards and in short-form video because they deliver that reaction in just a couple of seconds. Creators reach for a brief clap rather than a long ovation when a moment needs instant validation without slowing the pace. It works across comedy, gaming, reactions and celebratory edits, and its familiarity is part of its power: viewers recognise the sound immediately and understand the joke or achievement without any explanation.