| 감각신경성난청인의 비선형 주파수압축보청기 착용효과:
사례보고 |
| 주연미1, 이경원2 |
1한림대학교 일반대학원 언어병리청각학과
2한림국제대학원대학교 청각학과 |
| Effects of Non-linear Frequency Compression Hearing
Aids for Subjects with Sensorineural Hearing Loss:
Case Report |
| Yeonmi Joo1, Kyoung Won Lee2 |
1Department of Speech Pathology and Audiology, Graduate School, Hallym University, Chuncheon, Korea
2Department 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: December 2, 2014; Revised: January 16, 2015 Accepted: January 19, 2015. Published online: January 31, 2015. |
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| ABSTRACT |
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The purpose of this study was to report three cases about how aided hearing threshold levels, word recognition
score (WRS) and subjective responses changed when the frequency compression (FC) function was deactivated or
activated in non-linear frequency compression hearing aid. Three subjects (6 ears) with sensorineural hearing loss
bilaterally and with no history of wearing hearing aids before participated in this study. All the participants wore
receiver-in-the canal type digital hearing aids with 20 channels. After the FC function was activated, the results
showed better aided hearing threshold levels by 5 ~ 20 dB and improved WRS by 6 ~ 14% mostly in high
frequency range compared to those of non-frequency compression (NFC). Their subjective responses of sound
qualities showed positively better compared to those of the NFC. This study strongly suggests that in case of people
whose hearing loss is severe in the high frequency range, FC hearing aids can help to result in better WRS.
However, the future study to accurately evaluate an effect of FC hearing aid used for subjects with sensorineural
hearing loss will need more elaborate design and to evaluate the changes of gain in both psychosocial and
listening-environmental aspects by using other questionnaires. |
| Key Words:
Frequency lowering, Frequency compression, Hearing aid, Frequency compression threshold, Frequency
Compression ratio, Sensorineural hearing loss |
| 중심단어:
주파수하강, 주파수압축, 보청기, 주파수압축
역치, 주파수압축비, 감각신경성난청 |
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