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An Approach for Wave Field Synthesis High Power Applications

Wave Field Synthesis (WFS) is a technique that enables true spatial reproduction over a large audience area with no dependence on the listener position. During the last decade, some major advances have been achieved for extending its use in every day applications. WFS can be applied in high powered applications, such as sound reinforcement events, in which true spatial audio would be needed. At present, dynamic midrange loudspeakers, that form the arrays needed to recreate the secondary sound sources cannot deliver such power because of its size. In this paper, large drivers arrays are proposed to achieve high pressure fields that fulfill the requirements of high power applications. Size and distance between loudspeakers are chosen not to elevate the typical aliasing frequencies and directivity of the standard arrays. To prove the benefits of this arrays, some simulations of the reproduced sound field are presented, together with acoustic measurements of an array of loudspeakers.

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