1 research outputs found
Multiple scattering ambisonics: three-dimensional sound foeld estimation using interacting spheres
Rigid spherical microphone arrays (RSMAs) have been widely used in ambisonics
sound field recording. While it is desired to combine the information captured
by a grid of densely arranged RSMAs for expanding the area of accurate
reconstruction, or sweet-spots, this is not trivial due to inter-array
interference. Here we propose multiple scattering ambisonics, a method for
three-dimensional ambisonics sound field recording using multiple acoustically
interacting RSMAs. Numerical experiments demonstrate the sweet-spot expansion
realized by the proposed method. The proposed method can be used with existing
RSMAs as building blocks and opens possibilities including higher
degrees-of-freedom spatial audio