| 압축역치의 조절을 통한 음질의 개선 사례보고 |
| 최민정, 이경원 |
| 한림국제대학원대학교 청각학과 |
| Case reports of improving sound quality by compression threshold control |
| Min Jung Choi, Kyoung Won Lee |
| Department of Audiology, Hallym University of Graduate Studies, Seoul, Korea |
| Correspondence |
Kyoung Won Lee ,Tel: (02) 2051-4951, Fax: (02) 3453-7833, Email: leekw@hallym.ac.kr
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Received: April 27, 2011; Revised: May 31, 2011 Accepted: June 14, 2011. Published online: June 30, 2011. |
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| ABSTRACT |
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Listeners with sensorineural hearing loss (SNHL) have a relatively narrow dynamic range. Due to this reduced dynamic range of
hearing, they are recommended to use hearing aids equipped with a special feature called wide dynamic range compression (WDRC).
WDRC hearing instruments are configured with high compression ratio (CR) and low compression threshold (CT). However, sound
quality can be affected by high CR and low CT in WDRC hearing aids. It is possible to control CT for improving sound quality. In
this paper, three cases, including listeners who used ITC (In-The-Canal) type WDRC hearing aids, were reported . Three listeners
were satisfied when CT was controlled between 60-70dB SPL. |
| Key Words:
Compression Ratio, Compression Threshold, Sound Quality |
| 중심단어:
압축비율, 압축역치, 음질. |
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