The audio titled "Helicopter Engine" is a highly synthesized, high-quality sound that embodies the essence of a whirring helicopter engine. It is a continuous looped sound, embodying the steady hum and rhythmic drone of a helicopter in flight. The audio replicates the mechanical sounds of a copter, giving you the immersive feeling of being near a helicopter, possibly preparing for takeoff or in mid-flight. The sound is synthetic yet accurately captures the essence of a real-life vehicle, providing an authentic auditory representation of a helicopter. The drone of the engine is continuous, making it seem as if the helicopter is hovering in place, the blades slicing through the air in a steady rhythm.