화자의 성별에 따른 한국형 주파수중요함수 및 절대전달함수 비교

• 영문명: Comparisons of the Korean Band-Importance and Absolute Transfer Functions according to Speakers’ Gender
• 발행기관: 한국청각언어재활학회
• 저자명: 허소희(So-hee Heo) 오홍엽(Hong-yeop Oh) 진인기(In-Ki Jin)
• 간행물 정보: 『Audiology and Speech Research』Audiology and Speech Research 제14권 제4호, 236~242쪽, 전체 7쪽
• 주제분류: 사회과학 > 교육학
• 파일형태: PDF
• 발행일자: 2018.10.31

영문 초록

Purpose: The speech intelligibility index (SII) represents the contribution of audible speech information within given frequency bands to speech intelligibility. Generally, speech intelligibility performance depends on the gender of the speaker. The purpose of this study was to compare how a speaker’s gender affects band-importance functions (BIFs) and absolute transfer functions (ATFs), which are important components of the SII. Methods: This study consisted of 78 subjects. The SII data for male speakers was obtained from a previous study. The SII data for female speakers was obtained using the same procedure as the previous study. Hearing-In-Noise Test sentences were used as stimuli. Intelligibility scores were measured in 42 filters at 5 signal-to-noise ratios. The BIFs and ATFs were derived using a nonlinear optimization procedure, and then the BIFs and ATFs of the different genders were compared. Results: The BIF and ATF of different genders have different characteristics. In the case of the BIF, the gap between the different genders ranged between 0.2% (1,170Hz) and 4.0% (8,500 Hz) depending on the frequency band. In the case of the ATF, the female speakers’ ATF was steeper than the male speakers’ ATF. Conclusion: The results of the current study indicate that gender can be an important factor for predicting intelligibility. Female speakers’ speech seems particularly more intelligible than male speakers’ speech when measured at the same audibility levels in Korean SII modeling.

목차

INTRODUCTION

MATERIALS AND METHODS

RESULTS

DISCUSSIONS

키워드

어음명료지수 성별 효과 어음인지 주파수중요함수 절대전달함수 Speech intelligibility index Gender effect Speech perception Band-importance function Absolute transfer function