The audio unfolds with the crisp, distinct sound of metal sheet making contact with another. The sound initiates with a high-pitched resonance, indicating the drop of the metal sheet. It swiftly progresses into a deeper, echoing rumble as the sheet settles onto the pile. This reverberating noise is the testament of its metallic nature. The audible clatter symbolizes a collision of solid surfaces, as the dropped sheet comes in contact with the stack. The sound gradually diminishes, leaving behind a subtle hum of vibrating metal.