What is Audi's air suspension system and how does it work?

I've heard that the Audi A8 has an advanced air suspension system, but I'm not entirely sure how it works. Can you provide an explanation?

The Audi A8's air suspension system is designed to improve ride comfort and handling. It uses electronically controlled air springs to adjust the suspension and provide a smoother ride. In simple terms, it works by adjusting the level of air pressure in the springs to counteract the movement of the vehicle and maintain a stable, comfortable ride.