Acoustic generation apparatus, processing method for acoustic generation apparatus, and program

Abstract

To reproduce a sound field at a virtual listening point while reproducing a real sound field.SOLUTION: An acoustic generation apparatus includes: an ambisonics signal generation unit 102 that generates an ambisonics signal on the basis of a sound collection signal collected by a first sound collection unit; a detection unit 105 that detects a position and an orientation of the first sound collection unit; a rotation unit 103 that rotates the ambisonics signal toward an orientation of a virtual listening point as viewed from the orientation of the first sound collection unit; a sound source signal generation unit 111 that generates a sound source signal having enhanced directivity toward a direction of a sound source with respect to a sound collection signal collected by the first sound collection unit or a second sound collection unit on the basis of a position and an orientation of the first sound collection unit or the second sound collection unit; and a sound field synthesis unit 112 that synthesizes a sound field at the virtual listening point on the basis of the ambisonics signal rotated by the rotation unit and the sound source signal generated by the sound source signal generation unit.SELECTED DRAWING: Figure 1

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