|
|
Word-level phonetic variability in public speaking
Kodytková, Carmen ; Machač, Pavel (advisor) ; Zíková, Magdalena (referee)
This thesis concentrates on phonetic variability of words in public speaking. In the first part of the thesis, the aim was to summarize the existing knowledge about the characteristics and principles of spontaneous speech, about phonetic features of Czech speech sounds and about factors that may influence type and degree of reduction. Then we summarize the results of older studies done on other languages (esp. on Dutch and German) and outline a possible application of results from word variability analyses. In the second part of this thesis we look at five Czech words - protože, prostě, myslím, samozřejmě and určitě. We set several groups of variants according to the degree of reduction for each word, we examine stability of their phonetic features and survey whether position (initial, medial, final and I = F) in intonation unit and/or speed of pronunciation of the chosen word has an influence on degree of reduction. Five to eight hierarchical groups of variants were set for each chosen word. Stability of phonetic features in four types of speech sounds (vowels, nasals, unvoiced plosives and unvoiced sibilants) is in line with the existing observations (e.g. Machač, 2004). Speed of pronunciation of the word had an influence on the degree of reduction in words protože, prostě, samozřejmě and určitě,...
|
|
|
Word-level pronunciation reduction in spotaneous speech and identification of speech units
Tomanová, Eliška ; Machač, Pavel (advisor) ; Zíková, Magdalena (referee)
The thesis deals with the issue of word-level pronunciation reductions and with the identification of reduced word forms. The first part of the thesis focuses on the degree of the phonetic features' stability and presents an analysis of selected words from dialogues with a high degree of spontaneity. The results of this research confirm that the most stable features of speech are the fricativness of sibilants and / /ř , voice, the formant structure of vowels and the nasality of the nasal consonant. The closure of the explosives and the quality of vowels prove, on the other hand, to be relatively unstable features. The second part of the thesis focuses on perceptual tests, which are used to verify the identifiability of the selected words in relation to the degree of reduction and the type and complexity of the context. Furthemore, the thesis tries to determine the phonetic features, which are under given conditions relevant for the appropriate identification of words. The research proved, that the most often noted phonetic features correspond to the above mentioned features with high stability. Moreover, it was also confirmed, that the recognizability of words depends on the degree of their reduction and the type of the context: strongly reduced words without any context tend to be very difficult...
|
|
|
Word-level phonetic variability in public speaking
Kodytková, Carmen ; Machač, Pavel (advisor) ; Zíková, Magdalena (referee)
This thesis concentrates on phonetic variability of words in public speaking. In the first part of the thesis, the aim was to summarize the existing knowledge about the characteristics and principles of spontaneous speech, about phonetic features of Czech speech sounds and about factors that may influence type and degree of reduction. Then we summarize the results of older studies done on other languages (esp. on Dutch and German) and outline a possible application of results from word variability analyses. In the second part of this thesis we look at five Czech words - protože, prostě, myslím, samozřejmě and určitě. We set several groups of variants according to the degree of reduction for each word, we examine stability of their phonetic features and survey whether position (initial, medial, final and I = F) in intonation unit and/or speed of pronunciation of the chosen word has an influence on degree of reduction. Five to eight hierarchical groups of variants were set for each chosen word. Stability of phonetic features in four types of speech sounds (vowels, nasals, unvoiced plosives and unvoiced sibilants) is in line with the existing observations (e.g. Machač, 2004). Speed of pronunciation of the word had an influence on the degree of reduction in words protože, prostě, samozřejmě and určitě,...
|
guest ::
