In this audio recording titled "Door Knob", the primary focus is the distinctive sound of a door knob being turned. The audio opens with the crisp, clear sound of a hand making contact with the cool, metal door handle. You can perceive the slight resistance as the handle is turned, followed by the smooth, almost whisper-like sound of the mechanism inside the door. The noise is fresh and sharp, a testament to the door's quality and newness. As the handle is released, you can hear the faint echo of the spring returning the knob to its original position. The audio concludes with the soft, but solid sound of the door securely closing. This sound recording perfectly captures the everyday, yet often overlooked sounds of a simple action - opening and closing a door.