Wave field synthesis (WFS) enables the accurate reproduction of a sound field for a large listening area with correct characteristics for each listener position. An exact perspective on the synthesized wave field is provided for every listener. Therefore, WFS-technology is ideally suited to be combined with augmented reality systems, where every user perceives his own visual perspective of a given scene. This paper presents a concept for authoring and user interaction for the production of wave field synthesis content in an augmented reality system. Also, the implementation of a prototype WFS-AR System based on ARToolkit is explained.