TY - JOUR T1 - An Acoustic Analysis of Surrounding Vowel Effects on Intervocalic /h/ in Turkish TT - Türkçede Ünlülerarası /h/ Üzerine Çevresel Ünlülerin Akustik Etkilerinin Çözümlemesi AU - Uzun, İpek Pınar AU - Arslan, Merve Nur PY - 2025 DA - June Y2 - 2025 DO - 10.32600/huefd.1534383 JF - Hacettepe Üniversitesi Edebiyat Fakültesi Dergisi JO - HUJFL PB - Hacettepe University WT - DergiPark SN - 1301-5737 SP - 248 EP - 261 VL - 42 IS - 1 LA - en AB - Previous studies on Turkish glottal consonant /h/ typically investigated the acoustic characteristics of this consonant; however, recent studies generally examine the formant frequency changes between preceding and following vowels as to determine the place of articulation of fricatives. This study investigates the place of articulation of Turkish /h/ in intervocalic position by comparing formant frequency changes of preceding and following vowels through their height and rounding characteristics of vowels. A production experiment is conducted with 21 speakers in a sound-proof booth. Stimuli consisted of eight Turkish vowels in preceding and following positions of intervocalic /h/ embedded into a carrier sentence (e.g., [Adam tohum yazdı] ‘The man seed write -past’). Rawdata analysis was performed on normalized mean F1, F2, F3, F2_3 values of each vowel adjacent to /h/. Findings for preceding vowels showed a decrease in rounding features of mean F1, F2, F3 and F2_3 values. On contrary to preceding vowels, findings for the following vowels indicated an increase in both height and rounding features for the mean F1 and F2 values. Overall results suggested that formant changes on the following vowels elicited more significance for the acoustic changes in following vowels compared to preceding vowels. KW - Formant KW - normalization KW - intervocalic KW - production KW - acoustics N2 - Türkçede gırtlaksıl /h/ ünsüzü üzerine yapılan önceki çalışmalar bu ünsüzün akustik sesbilgisel özelliklerini incelemektedir. Ancak, güncel çalışmalarda sürtünücülerin çıkış yerini belirlemek için genellikle sürtünücünün öncülünde ve ardılında konumlanan ünlülerin formant sıklık değişimleri araştırılmaktadır. Bu çalışma, ünlülerarası konumdaki /h/ ünsüzünün öncülündeki ve ardılındaki ünlülerin formant değerlerindeki değişimleri kıyaslayarak, ünlülerin yükseklik ve yuvarlaklaşma özellikleri bağlamında /h/ ünsüzünün çıkış yeri özelliğini incelemektedir. Sesletim deneyi, 21 konuşur ile ses yalıtımlı kabinde gerçekleştirilmiştir. Uyaranlar, Türkçe ses dizgesindeki sekiz ünlü /h/ ünsüzünün öncülünde ve ardılında konumlanacak biçimde taşıyıcı tümce içerisine yerleştirilmiştir ([Adam tohum yazdı]). 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