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Audiol > Volume 7(2); 2011 > Article
Audiology 2011;7(2): 119-123.
Published online: December 31, 2011.
doi: http://dx.doi.org/10.21848/audiol.2011.7.2.119
한국 난청인을 위한 보청기 이득의 제안
이경원1, 김진숙2
1한림국제대학원대학교 청각학과
2한림대학교 자연과학대학 언어청각학부
Suggestion of hearing aid gain for Korean Hearing Impaired (HAG-K)
Kyoung Won Lee1, Jin Sook Kim2
1Department of Audiology, Hallym University of Graduate Studies, Seoul, Korea
2Department of Speech Pathology and Audiology, College of Nature Science, Hallym University, Chuncheon, Korea
Correspondence  Jin Sook Kim ,Tel: (033) 248-2213, Fax: (033) 256-3420, Email: jskim@hallym.ac.kr
Received: November 4, 2011;  Accepted: December 6, 2011.  Published online: December 31, 2011.
ABSTRACT
The purpose of this study was to suggest one method of producing hearing aid gain for Korean (HAG-K) formula utilizing loudness growth of normal hearing (NH) and sensorineural hearing loss (SNHL), and long-term average speech spectrum (LTASS) for average conversational speech level. To yield HAG-K, the LTASS of NH was firstly obtained and simple equations were derived from differential dynamic ranges of SNHL which is different from those of NH according to loudness categories based on LTASS of normal hearing (LTASSNH). Then LTASS of SNHL (LTASSSN) was calculated using derived simple equations. Finally HAG-K was determined by the difference between LTASSNH and proportionally derived LTASSSN within the dynamic range of SNHL at each frequency. However, in order to calculate effective HAG-K, it is necessary to further analyze with real-ear to coupler difference by age, shape of hearing aid, upward spread of masking, occlusion effect, tonal quality and etc. Additionally, appling Korean speech intelligibility index which is different from English and evaluating user's satisfaction through self assessments should be considered. Calculating more effective HAG-K for the hearing impaired can increase degree of satisfaction after wearing hearing aids and can positively affect improving the tonal quality and reducing the period of auditory rehabilitation.
Key Words: Gain, Hearing Aid, Hearing Aid Fitting Formula, Korean, Sensorineural Hearing Loss
중심단어: 감각신경성난청, 보청기, 보청기적합공식, 이득, 한국
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