Place it at a scene change, after the classroom setup and before the hallway rush, then follow it with a bell ding for the next lesson and a door knock to open the next room.
Об этом звуке
This clip is a school bell ringing for just over nine seconds, with the familiar metallic tone used to mark the start and end of lessons. It feels instantly familiar and slightly urgent, like the signal that sends a hallway moving and tells everyone the lesson is over.