Place it at the end of a quiz question, just after the correct answer is shown, so it closes the round before the next question begins. Follow it with a bell ding to underline the win, and keep it for correct answers only so wrong choices can use a different cue.
Over dit geluid
This is a brief Russian voice clip saying pravilno, meaning correct, delivered in a calm, matter-of-fact tone that lasts just under three seconds. It gives a listener a small, satisfying sense of being right, with a dry edge that suits a smart guess or an obvious answer. The word itself is a common Russian confirmation, used here as a spoken check mark after a choice.