This sound is a recording of the horn fitted to a Heuliez bus, a French-built city bus familiar from streets and public transport routes. Unlike a car horn, a bus horn is designed to be heard over distance and traffic, which is why this clip sounds so deep, loud, and sustained. Short horn recordings like this one have become a staple of soundboard collections, where creators reuse real-world vehicle sounds to add realism to sketches, memes, and gameplay videos. Its simple, recognisable blast keeps it useful long after the original recording was made.