Measurement of Evoked Otoacoustic Emission Latency Using Linear prediction Coding Spectrum

선형예측부호화 스펙트럼을 이용한 유발이음향 방사파 잠시의 측정

  • An, Jung-Il (Dept. of Electronics, Kyungpook National University) ;
  • Choi, Jin-Young (Dept. of Electronics, Kyungpook National University) ;
  • Cho, Jin-Ho (Dept. of Biomedical Eng. Kyungpook Nat. Uni. Hospital, Dept. of Electronics, Kyungpook Nat. Uni.) ;
  • Lee, Kuhn-Il (Dept. of Electronics, Kyungpook National University)
  • 안정일 (경북대학교 공과대학 전자공학과) ;
  • 최진영 (경북대학교 공과대학 전자공학과) ;
  • 조진호 (경북대학교병원 의공학과 및 경북대학교 전자공학과) ;
  • 이건일 (경북대학교 공과대학 전자공학과)
  • Published : 1991.05.15

Abstract

An automatized latency calculation method of evoked otoacoustic emission is proposed. Averaged e-OAE signal is measured from normal adult and it is processed by IBM-AT computer for latency calculation. After partition of stimulated and emitted signal on the time axis by converted linear prediction coding spectrum, latency is calculated by cross correlation method. The output is also compared with those of conventional autocorrelation and pure cross correlation methods. The result show that proposed method has better performance than those of conventional ones.

Keywords