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We developed a sound separation system that uses a microphone array to separate children's voices from background noise in general living environments. Our focus in the development of this system is on “a clear separation of the human voice” so that it will be easy for children to use. Evaluations conducted of sound separation performance in previous research have not always measured how easily listeners...
This paper presents a spherical microphone array design which can be used for capturing a sound selectivity and locally. Capturing a sound by microphone array is achieved by method of Delay and Sum Beam Forming (DSBF). In this method, microphone arrangement has a large effect on the directivity. Using beam forming simulation, the authors investigated on the optimal arrangement of concentrically spherical...
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