대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

적응 후처리 과정을 갖는 마이크로폰 배열을 이용한 잡음제거기의 DSP 구현

DSP Implementation of Speech Enhancement System Using Microphone Array with Adaptive Post-processing

  • 권홍석 (경북대학교 전자전기공학부) ;
  • 김시호 (경북대학교 전자전기공학부) ;
  • 배건성 (경북대학교 전자전기공학부)
  • 발행 : 2002.06.01
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초록

In this paper, a speech enhancement system using microphone array with adaptive Post-Processing is implemented in real-lime with TMS320C6201 DSP. It consists of delay-and-sum beamformer and adaptive post-processing filters with NLMS (Normalized Least Mean Square) algorithm. THS1206 ADC is used for collection of 4-channel microphone signals. Sizes of program memory, data ROM and data RAM of the implemented system are 15,744, 748 and 47,540 bytes, respectively. Finally 21.839${\times}$106 clocks per second is required for real-time operation.

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