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Hat-type hearing aid system with flexible sound directivity pattern
Acoustical Science and Technology
For speech communication, it is useful to emphasise the sound coming from a target direction. A large-scale microphone array enables a flexible design of the directivity pattern. However, it is difficult to implement a large-sale microphone array onto an ear-type hearing aid system. In this paper, we propose a hat-type hearing aid system composed of 48 MEMS microphones that can increase the flexibility of the sound directivity pattern. We found that it is possible to reduce the number ofdoi:10.1250/ast.39.22 fatcat:lees3d2wcze45bcwt3s3tnfsc4