The audio starts with the sound of footsteps approaching, echoing slightly as if in a large, empty room. Then comes the distinct sound of a hand rapping against a wooden surface, a low, resonant thump that resonates through the air. The knocking is rhythmic, deliberate, a sequence of three knocks followed by a brief pause before it repeats. Each knock is clear and precise, echoing the texture and density of the wood. The knocking continues, creating an anticipation, a sense of waiting for the door to be answered. The audio ends with the fading echo of the final knock, leaving behind a lingering silence.