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한국어 Hearing in Noise Test(HINT) 문장의 개발
문성균,문형아,정현경,Sigfrid D. Soli,이준호,박기현 대한이비인후과학회 2005 대한이비인후과학회지 두경부외과학 Vol.48 No.6
Background and Objectives:Hearing in Noise Test (HINT) is a modified speech reception test using digitally recorded sentences.It is useful in assessing speech communication in noise. This test is easy to set up and to standardize by the commercializedHINT system. We aimed to develop sentences for the Korean HINT system so as to enable international comparative studies.Subjects and Method:Seven hundred fifty natural written sentences were prepared. They were digitally recorded by a professionalvoice actor, and long-term average spectrum of recorded sentences was calculated for masking noise. The performanceintensitytest estimated the relationship between signal-to-noise ratio (S/N ratio) and percent word intelligibility by testing tennormal hearing adults. The next step was to equate the intelligibility of sentences when they were presented in masking noise ata fixed level, and 250 sentences were chosen. Individual phonemes in each sentence were counted after phonemic transcriptionusing international phonemic alphabet. Results:Long-term speech spectrum of Korean sentences showed relatively lower level,especially in high tone, compared to other foreign languages. One dB change of SNR resulted in 9% word intelligibility change.Twenty five lists of ten sentences were formed by adjusting composition of sentences to obtain even phoneme distribution, whichwere had 9.21.1 syllables. Conclusion:Prepared sentences for the Korean HINT will be useful for assessing functional hearingactivity as well as international cross-language studies.
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