압축역치의 조절을 통한 음질의 개선 사례보고
Case reports of improving sound quality by compression threshold control
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초록
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.
Abstract
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.
참고문헌 (11)
- 이경원, "보청기적합공식과 한국의 연구 고찰", 청능재활, 5(1), pp.6~12 (2009), 한국청각언어재활학회
- 이경원, "단측보청기 착용시 한국 감각신경성 난청 성인의 2-cc 커플러이득과 NAL-NL1의 비교", 청능재활, 4(1), pp.69~73 (2008)
- 이경원, "한국어음을 이용한 다화자잡음의 개발 시안", 청능재활, 4(1), pp.24~27 (2008)
- 이상연, "비프로그램식 보청기에서 압축역치의 조절을 농한 배 경소음 감소에 대한 사례보고", 청능재활, 4(2), pp.199~203 (2008)
- 이소예, "한국어의 자모음비(CVR)에 따른 무의미음절의 단어인지도 변화", 청능재활, 6(1), pp.25~29 (2010), 한국청각언어재활학회
- Barker C, "Client preferences for compression threshold in single-channel wide dynamic range compression hearing aids", Ear Hear, 20(2), pp.127~139 (1999)
- Barker C, "Fitting low ratio compression to people with severe and profound hearing losses", Ear Hear, 22(2), pp.130~141 (2001)
- Boike KT, "Effect of compression ratio on speech recognition and speech-quality ratings with wide dynamic range compression amplification", J Speech Lang Hear Res, 43(2), pp.456~468 (2001)
- Hornsby BW, "The effects of compression ratio, signal- to-noise ratio, and level on speech recognition in normal- hearing listeners", J Acoust Soc Am, 109(68), pp.2964~2973 (2001)
- Souza PE, "The contribution of amplitude envelope cues to sentence identification in young and aged listeners", Ear Hear, 22(2), pp.112~119 (2001)
- von Hapsburg D, "Acceptance of Background Noise Levels in Bilingual (Korean-English) Listeners", J Am Acad Audiol, 17(9), pp.649~658 (2006)