Phonation Assimilation on the Verge of Various Rhythmic Structures in Modern Ukrainian Literary Language

The article considers cases of the phonetic phenomenon of phonation assimilation between consonant sounds (by the work of the vocal cords, or with the participation of voice, or by sonority or voicelessness), found on the verge of various rhythmic structures (bars) in the modern Ukrainian literary language. The presence or absence of description and examples of this kind of assimilation in scientific works, orthoepic dictionaries, textbooks and teaching aids for higher education institutions are analyzed. It is noted that scientists mainly focus on explaining certain phonetic processes of sounds likening only in the middle of particular words or rhythmic structures. Thus there are more samples with the specified phenomenon with proclitics and very seldom – with enclitics. Possible cases of assimilation at the verge of different phonetic words in separate scientific and educational sources are represented sporadically. It was found that on the verge of different phonetic words, the phenomenon of assimilation in the Ukrainian language without exception occurs when the voiceless consonant is in the position before the voiced, that is, these are cases of assimilation by sonority. Never in the modern Ukrainian literary language is there assimilation to voicelessness on the verge of rhythmic structures. Some scholars believe that partial stunning is possible as an action of colloquial-dialect trends. In cases of changing the posterior-lingual noisy voiceless consonant [х] on the verge of various phonetic words to the paired pharyngeal noisy voiced consonant [г] under the influence of the next any caller, it is worth qualifying double assimilation in place of creation and in sonority. If the deaf hard whistling consonants [c], [ц] of the previous measures fall into position before the next sonorous hard hissing [ж], [д̑ж] at the beginning of the words, then double assimilation occurs in sonority and place and way of creation. Assimilation to two classification features – sonority and softness – is possible when phonetic words of deaf hard consonants [с], [ц] are used on the border before voiced softened [з'], [д̑з'] and soft [д'], as well as deaf hard [т] before voiced soft [д']. Triple assimilation in sonority, place and mode of creation and hardness is characteristic when there is a coincidence between the individual bars of deaf softened whistling [с'], [ц'] before sonorous solid hissing consonants [ж], [д̑ж]. Additional studies require the use of voiceless hissing before sonorous whistles, as well as voiceless breakthrough [т] before sonorous hissing and whistling consonants, which in the way of creation are affricates or slit median consonants, on the verge of different rhythmic structures depending on the pace of pronunciation.