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Audiol > Volume 10(3); 2014 > Article
Audiology 2014;10(3): 190-197.
Published online: October 31, 2014.
doi: http://doi.org/10.21848/audiol.2014.10.3.190
비선형 보청기의 전기음향적 조절에 따른 역동범위, 신호대잡음비 및 자모음비의 변화와 적합
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
Received: October 15, 2014; Revised: October 19, 2014   Accepted: October 22, 2014.  Published online: October 31, 2014.
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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