Opening a Metal Door

The audio starts with the distinct sound of a key sliding into a metal lock, followed by the clear, crisp turning noise. There's a brief moment of silence, then the lock clicks open, signaling the door has been unlocked. Slowly, the metal door creaks open, the sound echoing into the surrounding space, emphasizing the metallic nature of the door. The squeaking hinges add a layer of tension. As the door fully opens, the sound becomes quieter until it finishes with the soft thud of the door coming to a rest. The atmosphere feels suspenseful, as if leading to an unknown.