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English Plosive Consonants Produced by Thai Speakers: An Analysis of Voice Onset Time

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Title: English Plosive Consonants Produced by Thai Speakers: An Analysis of Voice Onset Time
Language: English
Authors: Thanachporn Varapongsittikul, Sujinat Jitwiriyanont
Source: LEARN Journal: Language Education and Acquisition Research Network. 2025 18(1):724-747.
Availability: Language Institute of Thammasat University. The Prachan Campus, 2 Prachan Road, Bangkok 10200 Thailand. e-mail: learnjournal@gmail.com; Web site: https://www.tci-thaijo.org/index.php/learn
Peer Reviewed: Y
Page Count: 24
Publication Date: 2025
Document Type: Journal Articles
Reports - Research
Descriptors: Phonemes, Thai, Native Language, Second Language Instruction, Second Language Learning, English (Second Language), Pronunciation, Speech Communication, Phonology, Interference (Language), Computational Linguistics, Classification, Phonetics, Instructional Design, Pronunciation Instruction, Foreign Countries, Audio Equipment, Articulation (Speech)
Geographic Terms: Thailand
ISSN: 2630-0672
2672-9431
Abstract: This study aims to investigate the VOT values of English wordinitial plosive consonants produced by young Thai learners to understand current trends in English pronunciation among Thai speakers and its future direction. The study analyzes how phonological mismatches between Thai and English affect the pronunciation of Thai learners, using a speech corpus produced by 49 seventh-grade students. The results reveal recurring patterns of consonant pronunciation, classified into Consistent and Inconsistent groups. While voiced plosives /b/ and /d/ were mostly pronounced with voicing lead, resembling Thai phonetic norms, velar /g/ was frequently substituted with /k/ due to the absence of /g/ in the Thai sound system. However, some participants demonstrated a shift toward more native-like English pronunciation. Voiceless plosives were generally produced with long-lag VOT, aligning with both Thai and English norms, although some inconsistencies in aspiration were noted. The findings highlight the dynamic shift of English pronunciation among young Thai speakers. This research contributes to a deeper understanding of English spoken by Thais and facilitates instructors in designing targeted pronunciation tasks.
Abstractor: As Provided
Entry Date: 2025
Accession Number: EJ1470715
Database: ERIC
FullText Text:
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  Data: English Plosive Consonants Produced by Thai Speakers: An Analysis of Voice Onset Time
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  Data: <searchLink fieldCode="SO" term="%22LEARN+Journal%3A+Language+Education+and+Acquisition+Research+Network%22"><i>LEARN Journal: Language Education and Acquisition Research Network</i></searchLink>. 2025 18(1):724-747.
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  Data: Language Institute of Thammasat University. The Prachan Campus, 2 Prachan Road, Bangkok 10200 Thailand. e-mail: learnjournal@gmail.com; Web site: https://www.tci-thaijo.org/index.php/learn
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  Data: This study aims to investigate the VOT values of English wordinitial plosive consonants produced by young Thai learners to understand current trends in English pronunciation among Thai speakers and its future direction. The study analyzes how phonological mismatches between Thai and English affect the pronunciation of Thai learners, using a speech corpus produced by 49 seventh-grade students. The results reveal recurring patterns of consonant pronunciation, classified into Consistent and Inconsistent groups. While voiced plosives /b/ and /d/ were mostly pronounced with voicing lead, resembling Thai phonetic norms, velar /g/ was frequently substituted with /k/ due to the absence of /g/ in the Thai sound system. However, some participants demonstrated a shift toward more native-like English pronunciation. Voiceless plosives were generally produced with long-lag VOT, aligning with both Thai and English norms, although some inconsistencies in aspiration were noted. The findings highlight the dynamic shift of English pronunciation among young Thai speakers. This research contributes to a deeper understanding of English spoken by Thais and facilitates instructors in designing targeted pronunciation tasks.
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    Languages:
      – Text: English
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        PageCount: 24
        StartPage: 724
    Subjects:
      – SubjectFull: Phonemes
        Type: general
      – SubjectFull: Thai
        Type: general
      – SubjectFull: Native Language
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      – SubjectFull: Second Language Instruction
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      – SubjectFull: Second Language Learning
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      – SubjectFull: English (Second Language)
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      – SubjectFull: Pronunciation
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      – SubjectFull: Speech Communication
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      – SubjectFull: Phonology
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      – SubjectFull: Interference (Language)
        Type: general
      – SubjectFull: Computational Linguistics
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      – SubjectFull: Classification
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      – SubjectFull: Phonetics
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      – SubjectFull: Instructional Design
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      – SubjectFull: Pronunciation Instruction
        Type: general
      – SubjectFull: Foreign Countries
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      – SubjectFull: Audio Equipment
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      – SubjectFull: Articulation (Speech)
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      – SubjectFull: Thailand
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    Titles:
      – TitleFull: English Plosive Consonants Produced by Thai Speakers: An Analysis of Voice Onset Time
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            NameFull: Thanachporn Varapongsittikul
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            NameFull: Sujinat Jitwiriyanont
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              Y: 2025
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