Abstract
Two-dimensional microphone array is used for measurements of sound fields, and the measured results are applied tovarious purposes, for example, analyses of sound fields ,realization of a ultra-directional receiver, and so on. Such an array has many microphones and some structures to support microphones, so that it is supposed that the bodies of the microphones or the structures of the array would disturb the measured sound field. Some experimental results have been already shown by authors that there are some effects of the array structure to the sound field. In this study, an analytical method to investigate the effects of the array structure is developed, and some ideas to reduce the effects are discussed.
