The Exploration of Deli Malay Language Vowels: An Acoustic Phonetic Analysis

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Tengku Syarfina Syarfina
T. Thrhaya Zein
Muhammad Yusuf


Phonetics, acoustics, Deli Malay language, vowels


This study aims to discuss the acoustic profile of Deli Malay Language (Bahasa Melayu Deli) vowels from phonetics. In collecting data, the research will involve 15 DML native speakers. The speakers involved were between 20-40 years old. The data was obtained by recording the speaker’s voice in a quiet room with a consistent microphone distance of about 30 centimeters from the lips. Teak speakers will read syllable words containing target vowels in sentences with DML vowels. The pronunciation target vowel is placed on the first syllable. This study found that Deli Malay has seven vowels, namely vowels /i/, /e/, /ə/, /a/, /o/, /u/ and /ↄ/. DML vowel positions /i/ and /e/are high and medium front vowels. While the vowels /o/, /u/ and /ↄ/ are high and medium back vowels. Meanwhile, the vowels /a/ and / ə / are mid and low mid vowels. Later, this acoustic study calculated approximate vowel measurements based on F1 and F2 from the spectrogram at Praat. The measurement of the sound quality of forman vowels in Malay deli vowels is vowel /a/ F1 = 876 Hz and F2 = 1701 Hz vowel /i/ F1 = 533 Hz and F2 = 2328 Hz, vowel /e/ F1 = 689 Hz and F2 = 2204 Hz, vowels / ə/ F1= 692 Hz and F2= 1686 Hz, vowels /o/ F1= 650 Hz and F2= 1459 Hz, /ↄ/ F1= 658 Hz and F2= 1373 Hz, and /u/ F1= 524 Hz and F2 = 1383 Hz. This study provides a detailed analysis of the acoustic properties of Deli Malay vowels, contributing to a deeper understanding of the phonetic characteristics of the language. This can be valuable for linguists and researchers studying Malay languages and their phonetic systems.


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Adnan, A., Rahman, G., & Hamid, A. (2020). Acoustic Analysis of English Long Vowels Produced by Pashto Speakers. Liberal Arts and Social Sciences International Journal (LASSIJ), 4(2), 215–229.
Ahmed, S., & Grosvald, M. (2019). Long-Distance Vowel-to-Vowel Coarticulation in Arabic: Influences of Intervening Consonant Pharyngealization and Length. Language and Speech, 62(2).
Baigorri, M., Campanelli, L., & Levy, E. S. (2019). Perception of American–English Vowels by Early and Late Spanish–English Bilinguals. Language and Speech, 62(4).
Boersama, P., & Weenik, D. J. M. (2019). PRAAT: Doing phonetics by computer (Version 5.3.51). Version 6.0.54.
Bradlow, A. R. (1995). A comparative acoustic study of English and Spanish vowels. The Journal of the Acoustical Society of America 97, 1916 (1995), 97(3), 1916–1924.
Bussmann, H. (2006). The Routledge Dictionary of Language and Linguistics. Abingdon.
Conklin, J. T., & Dmitrieva, O. (2020). Vowel-to-Vowel Coarticulation in Spanish Nonwords. Phonetica, 77(4), 294–319.
Deterding, D. (1997). The Formants of Monophthong Vowels in Standard Southern British English Pronunciation. Journal of the International Phonetic Association, 27(1–2), 47–55.
Evans, J. P. (2006). Vowel Quality in Hongyan Qiang. Journal Language and Linguistics, 7(4), 731–754.
Harrington, J. (2010). Acoustic Phonetics. In W. J. Hardcastle, J. Laver, & F. E. Gibbon (Eds.), The Handbook of Phonetic Sciences (1st ed., pp. 81–129). Wiley.
Hillenbrand, J., Cleveland, R. A., & Erickson, R. L. (1994). Acoustic Correlates of Breathy Vocal Quality. Journal of Speech, Language, and Hearing Research, 37(4), 769–778.
Irawan, Y. (2017). Fonetik akustik [Acoustic phonetics]. Angkasa.
Ladefoged, P. (2001). Vowels and Consonant: An introduction to the sounds of languages. Blackwall.
Lunden, A. (2017). Duration, vowel quality, and the rhythmic pattern of English. Journal of the Association for Laboratory Phonology. Journal of the Association for Laboratory Phonology, 8(1 : 27), 1–20.
Manurung, S., & Zubeirsyah. (1984). Bahasa Melayu dialek Deli Medan. Pusat Pembinaan dan Pengembangan Bahasa, Departemen Pendidikan dan Kebudayaan.
Miles, M. B., Huberman, A. M., & Saldana, J. (2014). Qualitative data analysis: A methods sourcebook (3rd ed.). Sage Publication Inc.
Misnadin, M. (2020). Phonetic realisations of Madurese vowels and their implications for the Madurese vowel system. Indonesian Journal of Applied Linguistics, 10(1), 173–183.
Perwitasari, A. (2017). Quality Of Javanese And Sundanese Vowels. Journal of the Southeast Asian Linguistics Society JSEALS, 10(2), 1–9.
Perwitasari, A. (2018). Perception of English vowels by Javanese and Sundanese speakers: A mouse-tracking study. Wacana, 19(1).
Peterson, G. E., & Barney, H. L. (1952). Control methods used in a study of the vowels. Journal of the Acoustical Society of America, 24(2), 175–184.
Pillai, S., & Yusuf, Y. Q. (2012). An Instrumental Analysis of Acehnese Oral Vowels. Language and Linguistics, 13(6), 1029–1050.
Pramuniati, I., Mahriyuni., Syarfina, T. (2024). The vitality of Malay Language in North Sumatera, Indonesia. Research Journal in Advanced Humanities, 5(1), 223-245.
Recasens, D. (2021). Acoustic characteristics and placement within vowel space of full schwa in the world’s languages: A survey. Journal of the International Phonetic Association, 36, 1–36.
Roach, P. (1998). English phonetics & phonology. Cambridge University Press.
Roca, I., & Johnson, W. (1999). A course in phonology. Blackwell Publisher.
Rohman, F. A., & Misnadin. (2020). Phonetic Transcriptions of Dental and Alveolar Plosives Used in Madurese Dictionaries (Transkripsi Fonetis Bunyi Letup Dental dan Alveolar dalam Kamus Bahasa Madura).
Stevens, K. N. (2000). Acoustic Phonetics. The MIT Press.
Syarfina, T. (2009). Ciri Akustik Bahasa Melayu Deli. USU Press.
Tondo, H. (2009). Kepunahan Bahasa-Bahasa Daerah: Faktor Penyebab dan Implikasi Etnolinguistis. Jurnal Masyarakat Dan Budaya, 11(2).
Traunmüller, H. (1988). Paralinguistic variation and invariance in the characteristic frequencies of vowels. Phonetica, 45, 1–29.
Vaishna, N., & Misra, D. (2010). Acoustic Space, Duration and Formant Patterns in vowels of Bangkok Thai. International Journal on Asian Language Processing, 20(3), 123–140.
Watt, D., & Tillotson, J. (2001). A spectrographic analysis of vowel fronting in Bradford English. A Journal of Varieties of English, 22(2), 269–303.
Yusuf, S. (2017). An Acoustic Study of Sundanese Vowel Sounds and Its Implication on the Teaching of English to the Sundanese Speakers. Journal of Applied Linguistics Indonesia, 1(1).
Yusuf, Y. Q., Fata, I. A., & Karwinda, S. (2021). Oral monophthong vowel qualities of the Jamee language in Aceh. Indonesian Journal Of Applied Linguistics, 10(3), 794–803.
Zwicker, E., & Terhardt, E. (1980). Analytical expressions for critical‐band rate and critical bandwidth as a function of frequency. The Journal of the Acoustical Society of America, 68(5), 1523–1525.