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Audiology and Speech Research > Volume 12(3); 2016 > Article
Audiology and Speech Research 2016;12(3): 157-163.
Published online: July 31, 2016.
doi: http://doi.org/10.21848/asr.2016.12.3.157
한국 정상 화자의 캡스트럼과 스펙트럼 측정치의 성별과 발화 과제 효과
최성희1,2,3, 최철희1,2,3
1대구가톨릭대학교 바이오메디대학 언어청각치료학과
3가톨릭 청각음성언어센터
The Effect of Gender and Speech Task on Cepstral- and Spectral-Measures of Korean Normal Speakers
Seong Hee Choi1,2,3, Chul-Hee Choi1,2,3
1Department of Audiology and Speech-Language Pathology
2Research Institute of Biomimetic Sensory Control
3Catholic Hearing Voice Speech Center, Catholic University of Daegu, Gyeongsan, Korea
Correspondence  Chul-Hee Choi ,Tel: +82-53-850-2541, Fax: +82-53-359-0780, Email: cchoi@cu.ac.kr
Received: June 12, 2016; Revised: July 6, 2016   Accepted: July 14, 2016.  Published online: July 31, 2016.
The purpose of this study was to explore the effects of speech tasks (vowel vs. continuous speech) and gender on cepstral and spectral measurement.
Fifty-one young adults with normal voice participated and four cepstral- and spectral parameters [cepstral peak prominence (CPP), CPPSD, L/H ratio, L/H ratio SD] were obtained using ADSVTM on seven Korean vowels (/a/, /ε/, /i/, /o/, / u/, / m/, /^/) and two standardized paragraphs (‘fall’ & ‘walk’).
Significant main effects of both gender and vowel type were found. Males had significantly greater mean CPPs than females and greater CPPs for low vowel /a/ than high vowels (/i/ and /u/). No effect of continuous speech type on CPPs and L/H ratio, but gender had significant effect on the L/H ratio (greater L/H ratio for males in both continuous speech tasks). In addition, vowels had significantly greater CPP and L/H ratio than continuous speech including various phonemes. There was no relationship between ‘walk’ and ‘fall’ in CPP whereas higher correlation was presented between ‘walk’ and ‘fall’ in L/H ratio. In normal voice, no evidence provided that /a/vowel had any relationships with both standardized paragraphs in CPP reflecting overall voice quality or severity of voice disorders.
The results of this study indicate that cepstral- and spectral-based measures for normative data need to consider vowel type and gender. Furthermore, gender differences should also be considered for L/ H ratio spectral-based measurement in continous speech.
Key Words: Cepstral, Spectral, Vowel, Continuous speech, Gender
중심단어: 캡스트럼· 스펙트럼· 모음· 연결발화· 성별
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