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Audiology and Speech Research > Volume 13(4); 2017 > Article
Audiology and Speech Research 2017;13(4): 309-317.
Published online: October 31, 2017.
doi: http://dx.doi.org/10.21848/asr.2017.13.4.309
주파수, 성별 및 어음 종류에 따른 한국어의 어음역동범위
이경주1, 허소희1, 진인기2
1한림대학교 일반대학원 언어병리청각학과
2한림대학교 자연과학대학 언어청각학부·청각언어연구소
Korean Speech Dynamic Range According to Frequency, Gender, and Speech Type
Kyungju Lee1, Sohee Heo1, In-Ki Jin2
1Department of Speech Pathology and Audiology, Graduate School, Hallym University, Chuncheon, Korea
2Division of Speech Pathology and Audiology, Research Institute of Audiology and Speech Pathology, College of Natural Sciences, Hallym University, Chuncheon, Korea
Correspondence  In-Ki Jin ,Tel: +82-33-248-2221, Fax: +82-33-256-3420, Email: inkijin@hallym.ac.kr
Received: July 18, 2017; Revised: August 22, 2017   Accepted: September 11, 2017.  Published online: October 31, 2017.
ABSTRACT
Purpose:
Dynamic range (DR) of speech refers to the minimum and maximum levels of speech across frequencies and it depends on language. Recent findings showed that Korean speech DR is different from the DRs of other languages such as English and Mandarin. The purpose of this study was to identify the characteristics of Korean speech DR according to frequency (21 bands), gender (male and female), and speech type [words, sentences, and continuous discourses (CDs)].
Method:
DRs for 70 participants were recorded and yielded using cumulative histogram levels. Then, the DRs were compared according to frequency bands, gender, and speech type after level normalization at 65 dB sound pressure level.
Results:
Although there were no statistical differences between DRs for sentences and CDs, DRs for words were wider than DRs for other speech types. In terms of gender, DRs for female speakers were wider than DRs for male speakers in all speech types except a few frequency bands.
Conclusion:
Speech DR is important in real ear measurements like speech mapping because audibility can be determined based on the relationship between a person’s hearing thresholds and the DR of speech. Thus, the results of this study contribute to more accurate hearing aid fitting according to frequency bands, gender, and speech type for Korean listeners.
Key Words: Speech dynamic range, Speech intelligibility, Language, Hearing aid fitting.
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