The audio titled "Effects of Knocking" opens with the distinct sound of a single, deliberate thump against a wooden surface. This is a familiar noise that instantly brings to mind the image of a hand rapping against a door. The sound is crisp and clear, echoing a sense of anticipation. Soon, the pace quickens into a steady rhythm, producing a series of consecutive knocks that vary slightly in pitch and intensity. It's as if a conversation is taking place, a dialogue of knocks. The knocking sounds are distinct, each one resonating deeply before gradually fading away. As the audio progresses, the rhythm changes again, this time resembling the classic 'knock-knock' pattern that is universally recognized. This pattern repeats several times, adding a playful, humorous element to the audio. The audio further explores different styles of knocking, some slow and hesitant, others firm and demanding. Each knock paints a vivid picture of different scenarios, from a visitor patiently waiting