Wave Field Synthesis is capable of reproducing a sound field by means of loudspeaker arrays. It is desired to make a copy of the original sound field in order to create a virtual sound field with the same properties. It has been shown that the properties are similar but not congruent, which leads to the question of what the agreements and differences are with regard to auditory perception. Considerations and experiments are made to illuminate the case of distance perception of virtual sources, and, in particular, the role of the curvature of the wave front for distance perception.
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