A Study on the Korean Conversation Speech Level and Spectrum in Sound-Treated Environment
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Purpose: Several studies have reported the differences between Korean and other countries’ speech in long-term average speech spectrum (LTASS) and band importance function. Authors tried to identify the conversational speech level, the resulting spectrum, and the LTASS for Korean. The purpose of this study was to support the production of a Korean-type hearing aid fitting formula to effectively improve the sound quality of hearing aids and the communication abilities with hearing aids, and to standardize the sound stimuli required to measure the performance of hearing aids. Methods: A total of 73 participants with normal hearing and with no specific voice and language deficits was voluntarily recruited from capital, Gyeongsang and Jeolla areas. The conversational speech level was measured by vocalizing ‘soft,’ ‘moderate,’ ‘raised,’ and ‘loud’ at a distance of 1.0 m from the speaker. And LTASS was measured by vocalizing it at a distance of 0.2 m from the speaker. Results: There was a difference in the mean of males and females in the conversation level, but no significant regional differences were shown. The conversational speech level corresponding to 30th, 65th, and 99th percentiles was 59.67, 64.74, and 79.07 dB sound pressure level, respectively. And the speech spectrum of 30th, 65th, and 99th percentile and LTASS showed in different forms from the international speech test signal. Conclusion: The results of this study should help to calculate the Korean type hearing aid fitting formula and should be used as the basic data to determine the characteristics of the sound stimuli when measuring the performance of the hearing aid.
Abstract
Purpose: Several studies have reported the differences between Korean and other countries’ speech in long-term average speech spectrum (LTASS) and band importance function. Authors tried to identify the conversational speech level, the resulting spectrum, and the LTASS for Korean. The purpose of this study was to support the production of a Korean-type hearing aid fitting formula to effectively improve the sound quality of hearing aids and the communication abilities with hearing aids, and to standardize the sound stimuli required to measure the performance of hearing aids. Methods: A total of 73 participants with normal hearing and with no specific voice and language deficits was voluntarily recruited from capital, Gyeongsang and Jeolla areas. The conversational speech level was measured by vocalizing ‘soft,’ ‘moderate,’ ‘raised,’ and ‘loud’ at a distance of 1.0 m from the speaker. And LTASS was measured by vocalizing it at a distance of 0.2 m from the speaker. Results: There was a difference in the mean of males and females in the conversation level, but no significant regional differences were shown. The conversational speech level corresponding to 30th, 65th, and 99th percentiles was 59.67, 64.74, and 79.07 dB sound pressure level, respectively. And the speech spectrum of 30th, 65th, and 99th percentile and LTASS showed in different forms from the international speech test signal. Conclusion: The results of this study should help to calculate the Korean type hearing aid fitting formula and should be used as the basic data to determine the characteristics of the sound stimuli when measuring the performance of the hearing aid.
참고문헌 (21)
- Byrne, D., "The National Acoustic Laboratories’(NAL)new procedure for selecting the gain and frequency response of a hearing aid", Ear and Hearing, 7(4), pp.257~265 (1986)
- Byrne, D., "An international comparison of long-term average speech spectra", The Journal of the Acoustical Society of America, 96(4), pp.2108~2120 (1994)
- Byrne, D., "NALNL1procedure for fitting nonlinear hearing aids : Characteristics and comparisons with other procedures", Journal of the American Academy of Audiology, 12(1), pp.37~51 (2001)
- Cornelisse, L. E., "The input", output formula : A theoretical approach to the fitting of personal amplification devices, 1995, pp.97(3), 1854~1864
- Holube, I., "Development and analysis of an international speech test signal(ISTS)", International Journal of Audiology, 49(12), pp.891~903 (2010)
- IEC, "IEC 60118-7:2005. Electroacoustics–Hearing Aids–Part 7:Measurement of the Performance Characteristics of Hearing Aids for Production, Supply and Delivery Quality Assurance Purposes", International Electrotechnical Commission, ~ (2005)
- IEC, "IEC 60118-15:2012. Electroacoustics–Hearing Aids–Part 15:Methods for Characterising Signal Processing in Hearing Aids with a Speech-Like Signal", International Electrotechnical Commission, ~ (2012)
- 진인기, "한국어 단음절과 문장, 영어 문장을 이용한 장기평균어음스펙트럼 비교 연구", Audiology and Speech Research, 6(2), pp.164~172 (2010), 한국청각언어재활학회
- 진인기, "The Band-Importance Function for the Korean Standard Sentence Lists for Adults", Journal of Audiology & Otology, 20(2), pp.80~84 (2016), 대한청각학회
- 진인기, "Comparison of a Hearing Aid Fitting Formula Based on Korean Acoustic Characteristics and Existing Fitting Formulae", Audiology and Speech Research, 13(3), pp.216~221 (2017), 한국청각언어재활학회
- "Total population (based on the total population housing survey_domestic) (’18)" (2019)[URL]
- 이경원, "보청기적합공식과 한국의 연구 고찰", Audiology and Speech Research, 5(1), pp.6~12 (2009), 한국청각언어재활학회
- 이경원, "한국 난청인을 위한 보청기 이득의 제안", Audiology and Speech Research, 7(2), pp.119~123 (2011), 한국청각언어재활학회
- Lee, K. W., "Suggestions of multi-talker babble noise using Korean speech sound", Audiology, 4(1), pp.24~27 (2008)
- Moradi, N., "Long-term average spectra of adult Iranian speakers’ voice", Journal of Voice, 28(3), pp.305~310 (2014)
- Noh, H., "Cross-language identification of long-term average speech spectra in Korean and English : Toward a better understanding of the quantitative difference between two languages", Ear and Hearing, 33(3), pp.441~443 (2012)
- For Students of Hangul School Learning Korean with Fairy Tales, "Overseas Korean Education Promotion Foundation", Overseas Korean Education Promotion Foundation, 12~75 (2006)
- Speech Levels in Various Noise Environments, "Pearsons, K. S.", United States Environmental Protection Agency, ~, pp.EPA (1977), 600[DOI]
- Scheaffer, R. L., "Elementary Survey Sampling", pp.2012, Brooks
- Scollie, S., "The desired sensation level multistage input", output algorithm, 2005, pp.9(4), 159~197
- 윤영선, "한국어판 음성장애지수 (Korean-Voice Handicap Index) : 번안본 검증 및 새 지수 개발", 박사, 언어병리학, pp.2007