Digital Hearing Aid Fitting Program Testing System Development

디지털 보청기 적합 검증을 위한 전기음향 시험장치 개발

  • Jarng, Soon-Suck (Information, Control & Instrumentation Engineering Department, Chosun University) ;
  • Kwon, You-Jung (Information, Control & Instrumentation Engineering Department, Chosun University) ;
  • Lee, Je-Hyung (Information, Control & Instrumentation Engineering Department, Chosun University)
  • 장순석 (조선대학교 전자정보공과대학 정보제어계측공학과, 알고코리아) ;
  • 권유정 (조선대학교 전자정보공과대학 정보제어계측공학과, 알고코리아) ;
  • 이제형 (조선대학교 전자정보공과대학 정보제어계측공학과, 알고코리아)
  • Published : 2005.11.26

Abstract

DSP chip parameters of a digital hearing aid (HA) should be optimally selected or fitted for hearing impaired persons. The more precise parameter fitting guarantees the better compensation of the hearing loss (HL). Digital HAs adopt DSP chips for more precise fitting of various HL threshold curve patterns. A specific DSP chip such as Gennum GB3211 was designed and manufactured in order to match up to about 4.7 billion different possible HL cases with combination of 7 limited parameters. This paper deals with a digital HA fitting program which is developed for optimal fitting of GB3211 DSP chip parameters. The fitting program has completed feature from audiogram input to DSP chip interface. The compensation effects of the microphone and the receiver are also included. The paper shows some application examples.

Keywords