This sound comes from Netflix branding and is widely known as the platform's opening ta-dum. It became a familiar audio cue through the service's film and TV intros, then spread across memes, parody trailers and short-form edits online. Creators keep using it because the sound is brief, unmistakable and instantly tells viewers to expect a show, a reveal or a joke about streaming culture. Its popularity also comes from how easily it fits before title cards, fake episode openings and cinematic punchlines.