Conveyer Belt 3; Conveyor Belt; Repetitive Movement Over Motor / Fan Drone, Close Perspective.

Conveyer Belt 1; Conveyer Belt Moving; Motor / Fan Noises, Rhythmically Repeating Low Frequency Flapping, Close Perspective.

Conveyor Belt 2; Gm Factory Conveyor Belt; Continuous Rhythmic Metallic Clunks / Heavy Machinery In Background, Close Perspective.