The chime belongs to Sydney Trains, the suburban rail operator serving Sydney in New South Wales, Australia, where the tone is heard daily before automated and live information announcements. Transport enthusiasts and trainspotters recorded platform audio for years, and short clips later circulated on soundboards and in travel edits. Because so many residents and visitors associate the two notes with arriving trains and platform updates, creators now use it as shorthand for Sydney public transport, even in parody announcements far from an actual station.
About this sound
The Sydney Trains announcement chime is the two-tone alert played before station announcements in Sydney, widely used in transit and travel videos.
The Sydney Trains announcement chime is a short, clean two-note electronic tone that plays a moment before a voice announcement on Sydney's rail network. It lasts just over a second and has a calm, official sound, with a soft ding followed by a slightly lower ding that signals passengers to listen. Regular commuters recognise it instantly from platforms and trains across New South Wales. In videos it works as an instant location cue, making a scene feel like a real station announcement is about to begin, even before any words are heard.