Subjective Effect of Synthesis Conditions in 3D Sound Field Reproduction System Using a Few Transducers and Wave Field Synthesis

摘要

In a conventional 3D sound field reproduction system using wave field synthesis, numerous loudspeakers are placed around the listener. However, since such a system is very expensive and loudspeakers are in the listener's field of vision, it is very difficult to construct an audio-visual virtual reality system. We have proposed a 3D sound field reproduction system using wave field synthesis and eight transducers, which are placed at the vertex of a cube. In this study, the effect of synthesis conditions on the localized perception was evaluated when the synthesis conditions, the directivity of microphones, and the size of cubic arrays, were varied. As a result, the performance of the localized perception was good when shotgun microphones were used and the size of arrays was that of a cube, measuring 0.4 m on each side.