Factory whistles date back to the industrial era, when steam-powered horns were installed at mills, mines, shipyards and railway works to tell large workforces when shifts began, paused for lunch and ended. Their sound travelled across whole towns, so it became a shared signal for the working day itself. As factories modernised and electronic buzzers replaced steam, the whistle survived in cartoons, films and radio as shorthand for quitting time. Creators still use it today because it needs no explanation and instantly signals that work is done.
關於此聲音
A loud factory whistle blast, the steam horn that once signalled the start and end of shifts, now used in videos to mark a job finishing or a day ending.
This is a short, powerful factory whistle, a single sustained steam blast that rises sharply and holds its piercing, industrial tone before cutting off cleanly. It sounds like the horn that once echoed across mills and shipyards, instantly recognisable even without any picture to explain it. Because it is so loud and so tied to the idea of work starting or stopping, hearing it creates an immediate sense of urgency, completion or comic finality. In an edit it works like a punctuation mark, telling the viewer that something is over, someone is leaving, or a long task has finally finished.
