1A1-W06 Study on Spherical Microphone Array with 3-D Directivity

Expectations of a sound interface are increasing because this interface does not need advanced knowledge for any machines and a physical operation. It is difficult to use this interface because of a general living environment with a background noise. In order to solve the problem, there are many studies of sound separation system with a microphone array. In previous study, this microphone array was small system and considered only 2-D directivity control to put this microphone array on machines. The authors developed a spherical microphone array with 3-D directivity. We confirmed by an evaluation experiment that developing microphone array had 3-D directivity. In this paper, we reported about the development of the spherical microphone array and the evaluation experiment.