Efficient sampling for scanning spherical array Academic Article uri icon

abstract

  • ABSTRACT Spherical microphone arrays have been studied for a wide range of applications. In particular microphones arranged around an open sphere are useful in scanning microphone arrays for sound field analysis. However, open-sphere have been shown to have poor robustness at frequencies related to the zeros of the spherical Bessel functions. This paper presents a new dual ellipsoid shape configuration, which achieves high robustness, with a relatively small number of sampling points. The special geometry …

publication date

  • May 6, 2010