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In different languages, rhotic with a different manner of articulations (trill, flap, fricative, approximant) has occurred in various positions (apical/alveolar, retroflex, velar). On the other hand, in different languages, the nature of the apical trill [r] in particular, has a great amount of variability in different phonetic contexts and may be affected and changed easily by the surrounding sounds. However, Formants’ frequencies, fundamental frequency, intensity, and duration are those acoustic parameters analyzed and measured for Turkish rhotic in this article. The data collected in this study show that [r] phoneme has various realizations according to the environment. It is realized differently depending on its position within a word. As an instance, the [r] in before and after voiced consonants, and in the intervocalic positions is approximant sound and in contrast, the manner of articulation of word-final [r] is a voiceless alveolar fricative. The [r] in after and before voiceless consonants is voiced alveolar fricative. The word-initial [r] is also approximant. Therefore, the Turkish [r] sound has six allophones, two of which are actually trills, theychr('39')re called voiced alveolar trill and voiceless alveolar trill . The latter occurs at the end of words while the former occurs everywhere except between vowels, where [r] is a simple voiced alveolar tap/flap. The analysis of F1 and F2 of approximant allophone showed that these formants are changed under the influences of surrounding vowels or consonants.

Keywords: sonorant, liquid, approximant, trill, fricative.

     

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