Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Analysis of Cochlear Characteristics Using Evoked Otoacoustic Emission

유발이음향 방사현상을 이용한 와우각 특성 해석

  • Lee, Nam-Ho (Dept. of Electronics, Kyungpook National University) ;
  • Choi, Jin-Young (Dept. of Electronics, Kyungpook National University) ;
  • Cho, Jin-Ho (Dept. of Electronics, Kyungpook National University, Dept. of Biomedical Eng., Kyungpook University Hospital) ;
  • Lee, Kuhn-Il (Dept. of Electronics, Kyungpook National University)
  • 이남호 (경북대학교 공과대학 전자공학과) ;
  • 최진영 (경북대학교 공과대학 전자공학과) ;
  • 조진호 (경북대학교 전자공학과 및 경북대학교병원 의공학과) ;
  • 이건일 (경북대학교 공과대학 전자공학과)
  • Published : 1992.05.15
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Abstract

Evoked otoacoustic emission (e-OAE) signals are measured from adult and analyzed by computer. Stimulation and detection are repeated and averaged 1000 times for noise cancellation. e-OAE signals are analyzed on frequency domain and time domain. The frequency domain analysis reveals that frequency of stimulus and emission has lineal relationship in 50 dB input sound amplitude. This result altos the cross correlation method to be applied for latency calculation. As the stimulus frequency grows higher, the latency tine is shorter and the gain or emission signal becomes greater. We introduced two mathmatical functions to identify these latecy and gain. These results can be utilized for cochlear modeling.

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