Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Automatic Directional-gain Control for Binaural Hearing Aids using Geomagnetic Sensors

지자기 센서를 이용한 양이 보청기의 방향성 이득 조절 연구

  • Yang, Hyejin (Interdisciplinary Program of Medical & Biological Engineering, University of Ulsan) ;
  • An, Seonyoung (Department of Biomedical Engineering, School of Electrical Engineering, University of Ulsan) ;
  • Jeong, Jaehyeon (Department of Biomedical Engineering, School of Electrical Engineering, University of Ulsan) ;
  • Choi, Inyong (Department of Communication Sciences and Disorders, University of Iowa) ;
  • Woo, Jihwan (Interdisciplinary Program of Medical & Biological Engineering, University of Ulsan)
  • 양혜진 (울산대학교 대학원 의용생체공학전공) ;
  • 안선영 (울산대학교 전기공학부 의공학전공) ;
  • 정재현 (울산대학교 전기공학부 의공학전공) ;
  • 최인용 (아이오와 대학교 언어청각학과) ;
  • 우지환 (울산대학교 대학원 의용생체공학전공)
  • Received : 2016.11.09
  • Accepted : 2016.12.30
  • Published : 2016.12.31
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Abstract

Binaural hearing aids with a voice transmitter have been widely used to enhance sound quality in noisy environment. However, this system has a limitation on sound-source localization. In this study, we investigated automatic directional-gain control method using geomagnetic sensors to provide directional information to binaural hearing aid user. The loudness gains of two hearing aids were differently controlled based on the directional information between a speaker position and a viewing direction of hearing aids user. This relative directional information was measured by two geomagnetic sensors on hearing aids user and a speaker. The results showed that the loudness gains were accurately controlled and could provide directional information based on the cue of interaural level differences.

Keywords

References

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