Abstract
Wave Field Synthesis (WFS) is a well-established sound field synthesis (SFS) technique that uses a dense distribution of loudspeakers (secondary sources) arranged around an extended listening area. The physical foundations of WFS assume a smooth contour on which the secondary sources are located. Practical systems are often of rectangular shape, which constitutes a non-smooth secondary source contour. The resulting effects on the synthesized sound field are investigated in this paper. In order to isolate the artifacts of one edge from other aspects, semi-infinite rectangular arrays are considered. It is shown that edges can result in considerable amplitude and spectral deviations. These results are supplemented by a case-study where an existing array is investigated.
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