Radio tuning noises have long been used in film, radio drama and television to signal a change of channel, place or time period, because the sound of static and searching is understood instantly without explanation. As short audio clips spread on soundboards and editing libraries, this familiar effect became a handy transition tool for creators making vlogs, sketches and short videos. It remains popular because it feels analogue and tactile in digital edits, adding texture and a sense of anticipation before a reveal.