Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Design of FIR filter using direct memory access for voice signal processing module in implantable middle ear hearing devices

이식형 인공중이용 음성신호 처리 모듈을 위한 직접 메모리 억세스 기반의 FIR 필터 설계

  • Kim, Jong-Min (Dept. of Medical and Biological Engineering, Graduate School, Kyungpook National University) ;
  • Park, Il-Yong (Advanced Research Center for Recovery of Human Sensibility, Kyungpook National University) ;
  • Yoon, Young-Ho (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Kim, Min-Kyu (Dept. of Medical and Biological Engineering, Graduate School, Kyungpook National University) ;
  • Lim, Hyung-Gyu (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Han, Ji-Hun (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Kim, Myoung-Nam (Dept. of Biomedical Engineering, School of Medicine, Kyungpook National University) ;
  • Cho, Jin-Ho (School of Electrical Engineering and Computer Science, Kyungpook National University)
  • 김종민 (경북대학교 대학원 의용생체공학과) ;
  • 박일용 (경북대학교 첨단 감각기능 회복장치 연구센터) ;
  • 윤영호 (경북대학교 전자전기컴퓨터학부) ;
  • 김민규 (경북대학교 대학원 의용생체공학과) ;
  • 임형규 (경북대학교 전자전기컴퓨터학부) ;
  • 한지훈 (경북대학교 전자전기컴퓨터학부) ;
  • 김명남 (경북대학교 의과대학 의공학교실) ;
  • 조진호 (경북대학교 전자전기컴퓨터학부)
  • Published : 2006.07.30
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Abstract

An FIR filter for digital voice signal processing has been designed and implemented using a microcontroller in implantable middle ear hearing devices (IMEHDs). The designed digital voice signal processing filter which has fast and accurate filtering operation and controllable filter characteristics has been implemented using a hardware multiplier and a direct memory access (DMA) in the low power microcontroller, MSP430F169. It has been confirmed that each of the implemented 6-orders Remez FIR filters with 1 channel and 2 channels can be applied to the voice signal processing module of IMEHDs based on the evaluation results of the filtering performance experiment.

Keywords

References

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