Open-Sphere Designs for Spherical Microphone Arrays

@article{Balmages2007OpenSphereDF,
  title={Open-Sphere Designs for Spherical Microphone Arrays},
  author={I. Balmages and Boaz Rafaely},
  journal={IEEE Transactions on Audio, Speech, and Language Processing},
  year={2007},
  volume={15},
  pages={727-732}
}
Spherical microphone arrays have been studied for a wide range of applications, one of which is acoustic measurement and analysis. Since a minimal interaction between the array and the measured sound field is an advantage in this case, open-sphere arrays are preferable compared to rigid-sphere arrays. However, it has been shown that open-sphere arrays suffer from numerical ill-conditioning at frequencies which correspond to the nodal values of the spatial spherical modes with the result of… CONTINUE READING
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