The sound comes from the voice chat interface in Claude, the AI assistant app, where a short start cue confirms a spoken conversation has begun. As screen recordings of AI chats became common in tech tutorials, memes and product demos, users clipped the tiny cue on its own and shared it on soundboards. Its appeal is its brevity and recognisability for anyone who uses voice mode. Creators now reuse it outside the app as a generic AI startup blip, similar to a ding sound effect, a mic on signal, or a transition into chatbot dialogue.