Alternation of vowels in roots and personal-possessive affixes of nouns in the Surgut dialect of the Khanty language

Personal-possessive 1st and 2nd person singular noun affixes in the Surgut dialect of the Khanty language, as well as 1st person plural noun affixes (irregular in various dialects) with singular objects are represented by several allomorphs: 1SG.SG - =əм / =эм / =ам; 2SG.SG - =əн / =э (=эн) / =а; 1PL.SG - =Vв. When the personal-possessive affixes are attached, vowel alternation occurs in several roots. The choice of specific allomorphs and the presence or absence of alternation depends on the root vowels. In roots with short vowels, there is no alternation, and affixes with lower vowels are used: =ам (1SG.SG) and =а (1SG.SG). When the personal-possessive affixes are attached to roots with long vowels, lower vowels are replaced by corresponding upper vowels. After roots with long upper vowels, =эм (1SG.SG) and =э (2SG.SG) affix variants are used, and no alternation occurs, because vowels can no longer be ‘moved' upwards. After stems with long non-upper vowels, the =əм (1SG.SG) and =əн (2SG.SG) affixes are used, and alternation takes place in the root. This is not true for some specific cases: in roots with long middle vowels, these processes may occur according to the upper vowel model, or the lower vowel model; for example, the lexeme вӧӈ ‘son-in-law', which contains a short vowel, can be followed by affixes with the vowel э, typical for roots with long upper vowels. Our research is based on field materials collected in the Surgut District, Khanty-Mansi Autonomous Okrug, or Yugra, in 2017-2019. The audio records were segmented and annotated via Praat software. Acoustic analysis and further statistical analysis of our data was performed on the basis of Emu-SDMS corpus system and R language.