양이 보청기에서 4개의 마이크를 이용한 방향성 잡음제거 기술 연구

초록

Binaural hearing aid is becoming a trend in hearing aid research field because it can provide higher noisereduction performance than monaural hearing aid. In environments with multiple interferers, directional signal processing in hearing aids uses techniques such as differential microphone arrays and Wiener filter to improve speech intelligibility. However, these hearing aids were fixed target sources located directly in front or directly behind the user. In this paper, we suggested a preliminary binaural directionality algorithm that can focus on left and right directions as well as forward and backward directions