어음청력검사 어음표의 주파수별 음향학적 특성에 관한 연구
A Study for the Acoustic Characteristics of PB Word List according to Frequency
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Abstract
Background and Objectives：The Korean phoneticaly balanced (PB) word list (Ham’s Korean PB Word List) is currently the most commonly used word list for spech discrimination test. The aim of this study was to investigate the frequency characte-ristics of the Hams Korean PB word list and to compare frequency characteristics of the Hams Korean PB word list with that of the 21st Century Sejong words, which represent characteristics of the contemporary spoken Korean language. Subjects and Method：Century Sejong words were weighted according to the frequency of usage. The 21st Century Sejong words and words from the Hams Korean PB word list were analyzed using an acoustic analysis program that has the MATLAB function. Results：Sylables with frequencies above 2,000 Hz comprise 34% of the 21st Century Sejong words and 16% of the Hams Korean PB word list. The Hams Korean PB word list does not represent the high frequency characteristics of the contemporary spoken ㅡ, ㅣ and open sylables than the Hams Korean PB word list. Conclusion：The Hams Korean PB word list does not reflect the high frequency characteristics of the contemporary spoken Korean language included in the 21st Century Sejong words. Therefore, a new PB word list that incorporates a greater number of sylables with high frequency characteristics is required. (Korean J Otolaryngol 2007 ;50 :480-5)
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