637 KB41 KB195520252017Horga, Damirštevilka:letn. 57str. 107-122ISSN:0024-3922COBISSID:66504290URN:URN:NBN:SI:doc-EASC2USIenZnanstvena založba Filozofske fakulteteLinguistica (Ljubljana)asimilacijaassimilationCroatianfonologijahrvaščinaizgovorjavasoglasnikiThe influence of the assimilation operator, speech rate and linguistic boundary on the production of /z/ in Croatian|It is widely accepted that invariant and discrete phonological units at the linguistic level are transformed into variable and continuous movements of speech organs, which in turn results in equally continuous acoustical results. The variability of phonemic units depends on neighbouring phonetic units, but also on the various linguistic, communicational and pragmatic contexts of a particular speech act. The influence of phonetic units upon each other results in adaptations, coarticulations and assimilations. By means of assimilation at least one distinctive feature of a phoneme is changed, so the observed phoneme becomes similar to its neighbouring sound - the assimilation operator. This paper is aimed at analysing the influence of speech rate on assimilation processes in the voiced fricative /z/, when it is preceded by sounds /s, z, (...) / in four different types of articulatory joint: sentence, clausal, lexemic and proclitical. The articulatory joint refers to the production of two phonemes separated by different types of linguistic boundaries. Twenty female native speakers of Croatian with no history of speech or hearing impairments read a text at both natural and fast speech rates. The acoustical recording was performed in a sound-treated room. The Praat software was used to analyse six variables in all occurrences of the sound /z/: duration, spectrum centre of gravity, standard deviation of the centre of gravity, spectral skewness, spectral kurtosis, and harmonic to noise ratio. The results showed that various linguistic boundaries, speech rates and sounds as assimilation operators influence the degree of assimilation of the phoneme /z/, as measured by the acoustic variablesSplošno sprejeto dejstvo je, da se na jezikovnem nivoju nespremenljive in diskretne fonološke enote pretvorijo v spremenljivo in neprekinjeno premikanje govornih organov, kar se odraža na akustičnem nivoju. Spremenljivost fonemskih enot je odvisna od sosednjih fonetičnih enot kakor tudi od različnih jezikovnih, sporazumevalnih in pragmatičnih kontekstov, v katerih se govorno dejanje odvija. Medsebojni vpliv fonetičnih enot se kaže v prilagoditvah, koartikulacijah in asimilacijah. V procesu asimilacije se spremeni najmanj ena razločevalna lastnost fonema, ki tako postane podoben sosednjemu glasu, to je asimilacijskemu operatorju. Cilj članka je analizirati vpliv hitrosti govora na asimilacijo zvenečega pripornika /z/, kadar se pred njim nahajajo glasovi /s, z, (...)/v štirih različnih vrstah artikulacijskih stičišč: povedno stičišče, stavčno stičišče, leksikalno stičišče in proklitično stičišče. Artikulacijsko stičišče se nanaša na izgovor dveh fonemov, ki ju ločijo različne oblike jezikovnih ločnic. Dvajset domačih govork hrvaškega jezika, ki niso nikdar imele nobenih govornih ali slušnih okvar, je prebralo besedilo v običajnem in hitrem tempu. Snemanje je potekalo v studijskih razmerah. Za analizo šestih spremenljivk glasu /z/ (trajanje, težišče spektra, standardni odklon težišča, asimetrija spektra, sploščenost spektra in razmerje med harmoničnostjo in šumom) je bil uporabljen program Praat. Rezultati so pokazali, da različne jezikovne ločnice, hitrost govora in različni glasovi v vlogi asimilacijskih operatorjev vplivajo na stopnjo asimilacije fonema /z/ z vidika merjenih akustičnih spremenljivkTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Filozofska fakulteta