Перцептивно разпознаване на трайността на африкатите и фрикативите в сръбския език

Abstract

The acoustic features are the phonetic system’s inherent features of the language. The characteristics of each speech sound have their variation field within which its realizations are perceived as typical. Sound is perceived as atypical pronunciation out-side the acoustic feature typical boundaries. The objectives of this study were to determine the boundaries on the typical/atypical basis of the identification functions of the probability of perceptual recognition of the duration and their comparison between voicing and voiceless speech sounds in the group of affricate and fricatives. Based on the analysis of the selected speech sounds: / c /, / č /, / dž /, / š /, / ž /, the boundaries of typical and atypical were defined, and they served for the synthesis of stimuli used in perceptive experiments. According to the given procedure, 6300 stimuli were formed. Then they presented to the listeners, who were asked to identify and mark the stimulus based on typical and atypical (extended/shortened) duration. The data analysis found the identification functions of the probability of perceptual recognition of the typical/atypical duration for the examined speech sounds at the initial position in words, by which the limits of the typical/atypical duration of the stated speech sounds were determined. The results have shown the existence of categorical perception through the emergence of a higher sensitivity of the perceptive mechanism to a reduction in duration (a greater inclination of the identification function of the probability of perceptual recognition of typical/atypical duration) than of prolonging the duration of the voice, which demonstrated that the label of duration could be a good indicator of deviation in articulation. In addition, it has been shown that there have been differences in the function of the probability of perceptual recognition of the duration of voicing and voiceless speech sounds, which explanation requires further research.