Place it at the very start of a classroom or study edit, before any dialogue or action begins, then follow it with a Bell Ding Sound Effect to mark the exact moment class starts, keeping the school routine clear from the first frame.
Sobre este sonido
The Korean school bell is an electronic classroom signal built from several clear tones played in sequence for about thirteen seconds. It feels calm and reassuring, with a tidy rhythm that makes a listener picture a timetable changing and a new lesson beginning. In South Korea it is broadcast in schools to mark lessons, breaks and exams starting and finishing.