| 비선형 보청기의 전기음향적 조절에 따른 역동범위,
신호대잡음비 및 자모음비의 변화와 적합 |
| 이경원 |
| 한림국제대학원대학교 청각학과 |
| Changes of Dynamic Range, Signal-to-Noise Ratio, and
Consonant-to-Vowel Ratio by Electroacoustic Adjustment
and Fitting in Non-linear Hearing Aids |
| Kyoung Won Lee |
| Department of Audiology, Hallym University of Graduate Studies, Seoul, Korea |
| Correspondence |
Kyoung Won Lee ,Tel: (02) 2051-4951, Fax: (02) 3453-6618, Email: leekw@hallym.ac.kr
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Received: October 15, 2014; Revised: October 19, 2014 Accepted: October 22, 2014. Published online: October 31, 2014. |
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| ABSTRACT |
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Although there have been tremendous development of hearing aid technology, it is important to understand features
of non-linear hearing aid technology and to adjust various electroacoustic parameters when fitting hearing aids. The
author described changes of dynamic range, signal-to-noise ratio and consonant-to-vowel ratio by adjustment of
compression ratio (CR), compression threshold (CT), attack time (AT) and release time (RT) in non-linear hearing
aids using Korean sentence waveforms. In addition, the author suggested effective methods to determine CR, CT,
AT and RT in non-linear hearing aid fitting for children and adults with hearing loss. Further, to maximize
communication abilities of hearing-impaired, especially Korean children and adults with hearing loss, future
researches are needed regarding to understanding of Korean language, Korean version of hearing aid fitting fomulae,
and aural rehabilitation programs. |
| Key Words:
Non-linear hearing aid, Compression ratio, Compression threshold, Attack time, Release time, Hearing aid
Fitting. |
| 중심단어:
비선형 보청기, 압축비율, 압축역치,
압축시간, 해제시간, 보청기적합 |
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