ÜNSÜZ İKİZLEŞMESİNİN TÜRKÇEDEKİ AKUSTİK GÖRÜNÜMLERİ
THE ACOUSTIC FEATURES OF CONSONANT GEMINATION IN TURKISH

Summary/Abstract: This study is aimed to describe the acoustic phonetic aspects of consonant gemination formed in the word-medial position and the relation of the three-dimensionality of consonants in Turkish. The study, which investigates the acoustic properties of consonants with the perspective of the consonant gemination model in Turkish by Ergenç and Bekâr (2013), seeks answers to the following questions: (i) Are there any acoustic differences in terms of the phonation durations of the geminated consonants in Turkish? (ii) Is there a distinctive difference in terms of the F2 formant frequency based on the differences in the sonority characteristics of the consonant pairs? (iii) Is there an acoustic phonetic compatibility between the geminated consonant pairs and the consonants grouped in the consonant gemination model in Turkish? (iv) Do the acoustic features of the geminated consonants display similarities or differences according to the consonants’ threedimensionality in Turkish (see e.g., Selen 1979; Ergenç, 1989). The sample group of the research in this study consisted of 20 healthy and monolingual native speakers of Turkish. The oral language data, collected in a silent room isolated from external sound, is examined with formant frequencies, phonation durations and intensity values. The statistical data is analyzed with Linear Mixed Effect Model in R Program. The findings reveal that the acoustic phonetic differences in consonant pairs need to be re-evaluated and the model needs to be reanalyzed by the three-dimensionality factor.

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