The audio begins with the atmospheric hum of a remote location, perhaps a field or a vast open space. Suddenly, a knock echoes through the silence, a sound that is distinctly non-electronic and organic in nature. It is a rhythmic thud, the unmistakable sound of knuckles rapping against a wooden surface. The knocking sound is distant yet purposeful, seeming to come from afar. It's a classic door-knock, resonating with a peculiar sense of urgency. After a few moments, the knocking ceases, replaced by the creaking of a door opening. The creak is prolonged, suggesting the door is hefty and perhaps old, the wooden planks groaning with the strain. Behind these sounds, the soft murmur of the field continues, adding a sense of solitude and isolation. The audio ends, leaving behind an imprint of the distant, non-electronic, and isolated door-knock.