This is essentially a phonological analysis of the Dholuo loanwords derived from English and Swahili. This study examines loanword adaptation at three levels: phonemic, phonotactic and prosodic. The study analyses the strategies that the language has used in adapting the foreign phonemes to the native phoneme system. It also examines the way foreign consonant and vowel clusters are adapted to the Dholuo system and how the stress systems in the source languages are adapted to the Dholuo tonal pattern. The Dholuo principles of syllabification are also examined. On adaptation of incoming sounds into the language, the study determined that Dholuo replaces such foreign segments with native sounds which are acoustically and auditorily closest to the foreign sounds. Some foreign sounds, however, are adopted into the sound system of the language, either to fill some phonological gaps in the language or for non-linguistic factors, like the prestige value. The study found that the native speaker-hearer has knowledge of the possible phonetic sequences in his language and performs the simplest possible adaptation in the loanword to make it correspond to these well-formed sequences. This extends to the insertion or deletion of foreign segments to make a loanword conform to the syllable structure constraints of the native system. The study reveals that Dholuo employs several strategies to nativize unnatural, non-canonic syllable structures: epenthetic vowel insertion, extrasyllabic consonant or vowel deletion, devocalization of unnatural vowel sequences, addition of a final vowel, and in some cases, consonant clusters may be tolerated. At the suprasegmental level, the study reveals that stress in the source languages is generally rendered as high tone in the language, while the stressed vowel in the loanword generally determines the ATR harmony in the loanword. The study revealed that if the first syllable in the loanword is stressed, then the loanword will be rendered with +ATR in Dholuo, while an unstressed first syllable will lead to a loanword with –ATR harmony. The study concludes that the means employed by a given language for the adaptation of unnatural, non-canonic syllable shapes are, in a general sense, peculiar to that language, and have nothing to do with the internally-motivated morpheme structure or phonological rules of the target language. The study also concludes that foreign phonemes are directly mapped onto corresponding native phonetic forms, and there is very scarce evidence in the data to support the theory that loanwords are nativized at the abstract phonological level of the target language. / Thesis (DLitt (African Languages))--University of Pretoria, 2005. / African Languages / unrestricted

Unlike some Asian languages (e.g., Korean), English has lexical stress manifested by four acoustic features: duration, intensity, F0 (pitch), and vowel quality. Lexical stress has been known to have significant influences on native English speakers’ recognition of spoken words. According to Cutler (2015), lexical stress has both suprasegmental and segmental features: Suprasegmental features include duration, intensity, and F0 while vowel quality is considered a segmental feature. However, it is still unclear which lexical features are more responsible for spoken word recognition. This study examined which features, suprasegmental features or vowel quality of English, are a more significant influencer in spoken word recognition using English loanwords in Korean, which lack the prominence of any syllable realized by these features. Additionally, this study investigated the claimed advantage of the strong-weak stress pattern over a weak-strong pattern. To that end, two experiments were conducted. First, a parallel acoustic comparison was made between disyllabic English words and their corresponding English loanwords in Korean in order to investigate whether Korean has lexical stress features similar to those of English. 10 Korean and 10 English native speakers read 20 disyllabic words: the English loanwords in Korean by Korean participants and the source English words by American participants. The results showed that the differences of acoustic values between the syllables of the English words were significantly larger than those of the English loanwords. That is, the relative prominence of the stressed syllable over the unstressed syllable in English was not found in Korean. Additionally, the results indicated that Korean does not have a reduced vowel such as /ə/ in English, which is a critical feature of English vowel quality. In Experiment II, 16 English loanwords were used to create three versions of a spoken word recognition experiment, which was administered using the online survey platform, Qualtrics. Each version had a different type of manipulation: unmanipulated English loanwords, English loanwords with suprasegemental manipulation or English loanwords with vowel quality manipulation. 117 American English hearers identified the spoken words of one of the versions assigned to them; their success rates and reaction times (RT) were recorded. A binominal regression test was used for the analysis of success rates, and the Kruskal-Wallis H test for the response times. The results indicated that as far as success rates are concerned, both suprasegmental features and vowel quality play a role in recognizing spoken English words. However, when these two features were compared, vowel quality seemed to be a much stronger player. As for stress patterns, no significant differences were found in success rates across the three sets of manipulation. Moreover, this study did not find any significant difference in RTs either across the three manipulation sets or the two stress patterns. This study offered many applied implications in ESL, especially for teaching English pronunciation in Korea.

I föreliggande single subject designstudie har tre personer med thai som modersmål och svenska som andraspråk tränats specifikt i svenskt uttal. Syftet med föreliggande studie var därför att utforma samt genomföra en uttalsintervention vilken delades in i en suprasegmentell och en segmentell modul. Syftet var vidare att undersöka hur suprasegmentella och segmentella förändringar i uttalet påverkade uttalets förståelighet. Uttalsträningen utfördes 14 gånger under en fem-veckors period. Interventionen delades upp i två moduler, en med suprasegmentellt fokus (B1) och en med segmentellt fokus (B2). I den suprasegmentella modulen ingick medvetandegörelse av stavelseuppbyggnad samt träning i svenska betoningsmönster. Den segmentella modulen innefattade träning av konsonantförbindelser, [ɧ] samt /r/. Efter varje tillfälle fick deltagarna repetera 50 ord som valts ut innan studiens början. Dessa ord analyserades utifrån deltagarnas förmåga att korrekt producera suprasegmentella och segmentella aspekter och utgjorde studiens mätpunkter. De suprasegmentella aspekterna bedömdes utifrån uppsatta bedömningskriterier och de segmentella aspekterna bedömdes med hjälp av Percentage Phonemes Correct (PPC). Efter genomförd intervention fick tre utomstående lyssnare skatta förståelighet för att undersöka om samband kunde ses mellan deras skattningar och de valda bedömningsverktygen. Enskilda ord ur ordlistorna valdes ut för att bedömningsverktygen även skulle jämföras mot akustiska mätningar. Resultaten i föreliggande studie visade på att samband kunde ses mellan specifik uttalsträning med segmentellt fokus och förbättrat uttal både vad gäller segmentella och suprasegmentella aspekter. Samma resultat visade den suprasegmentella uttalsträningen ge. Vidare kunde samband ses mellan bedömningen av de segmentella aspekterna utifrån mätpunkternas beräknade PPC och förståelighetsskattningarna. När PPC ökade förbättrades också förståeligheten. Då uttalsträning bör ha som fokus att uppnå god förståelighet hos andraspråksinläraren (Pennington, 1996; Levis, 2005) föreslås att segmentella aspekter bör ingå i uttalsträning. Mellan förbättringarna av suprasegmentella aspekter och förståelighet har inte liknande samband kunnat ses vilket dock kan bero på studiens design. Författarna till föreliggande studie anser därför att suprasegmentella aspekter i uttalsträning inte bör bortprioriteras. / Three native Thai speakers with Swedish as their second language have received special training in Swedish pronunciation in the current single-subject design study. The aim of the current study was therefore to devise and implement a set of pronunciation training exercises, divided into suprasegmental and segmental modules. The aim was also to examine how suprasegmental and segmental changes in pronunciation affected the intelligibility of the pronunciation. The pronunciation training consisted of 14 training sessions during a five-week period. The exercises were divided into two modules, one with focus on suprasegmental aspects (B1) and one with focus on segmental aspects (B2). The suprasegmental module included acquainting subjects with the syllabic structure of the Swedish language as well as training of the Swedish language stress pattern. The segmental module contained training of consonant clusters, the Swedish speech sound [ɧ] and /r/. At the end of each session the participants were asked to repeat 50 words chosen before the start of the study. These words constituted the measuring points of the study and were analyzed according to the participants' ability to produce suprasegmental and segmental aspects correctly. The suprasegmental aspects were assessed according to fixed criteria and the segmental aspects were rated by means of Percentage Phonemes Correct (PPC). After completion of the final training session, three independent listeners estimated intelligibility to determine if relationship existed between these and the chosen assessment tools. Single words were selected in order to compare their criteria-based and PPC-ratings with acoustic correlates. The results of the present study indicate that a relationship can be observed between specific pronunciation training with focus on segmental aspects and improved pronunciation in terms of segmental and suprasegmental aspects. The pronunciation training with suprasegmental focus indicated the same conclusion. Further, a relationship can be seen between the judgment of the segmental aspects based on the measuring points' PPC-rating and the ratings of intelligibility. The intelligibility improved when the PPC increased. The focus of pronunciation training should be to achieve good intelligibility (Pennington, 1996; Levis, 2005); therefore it is suggested that segmental aspects should be included in pronunciation training for native Thai speakers when learning Swedish as a second language. No similar relations have been discovered between the suprasegmental aspects and intelligibility, which, however, may be due to limitations in the design of the study. Therefore suprasegmental aspects should not be neglected in pronunciation training.

Made available in DSpace on 2014-06-11T19:32:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-07-29Bitstream added on 2014-06-13T19:43:26Z : No. of bitstreams: 1 rostas_mhsg_dr_arafcl.pdf: 1218366 bytes, checksum: 313c534dce437f44bfa907dfd2472610 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O objetivo desta tese consiste em estudar a maneira como regueiros maranhenses da zona rural da cidade de São Luís, falantes monolíngües de português brasileiro, variedade rural ludovicense, adaptam fonética e fonologicamente o inglês dos reggaes que cantam nessa língua, com vistas a obter seqüências que façam sentido na sua língua materna. Analisando os padrões fonológicos do Português Brasileiro Rural Ludovicense (PBRL), variedade linguística nativa dos sujeitos da pesquisa, e a interferência de uma língua “estrangeira” que é nativizada no som, com finalidades de obtenção de um sentido também “nativo”, buscou-se também discutir a identidade fonológica do Português. A hipótese inicial consiste em verificar a tendência para a manutenção de vogais tônicas e de traços de consoantes em posições tônicas, substituição / adaptação / supressão / reinterpretação de vogais e consoantes em posições átonas, prevalecendo a percepção de falantes de português, não fluentes em inglês, daquilo que ouvem nas músicas, e a busca de sentido em uma seqüência sonora aparentemente sem sentido. No entanto, no decorrer da pesquisa, são identificados processos utilizados pelos falantes do PBRL para a adaptação fonológica da língua original (Inglês) em direção à língua alvo, sendo tais processos a manutenção da qualidade da vogal tônica, a monotongação, a ditongação, a semelhança entre consoantes, a simplificação e a complexificação do padrão silábico e a manutenção da posição do acento. Dentre estes processos, há uma incidência maior na semelhança entre consoantes, da manutenção da posição do acento e da manutenção da qualidade da vogal tônica / The purpose of this work consists in studying how the reggae musicians from Maranhão state, living in the rural area of Sao Luis, as monolingual speakers of Brazilian Portuguese, rural variety from São Luis, adapt phonetically and phonologically the English language of the reggae music that they sing, in order to achieve sequences that can actually make sense in their mother language. Analyzing the phonological patterns of Brazilian Rural Portuguese from São Luis do Maranhão (Português Brasileiro Rural Ludovicense – PBRL), the native linguistic variety of the research subjects, and the interference of a “foreign” language that is turned into native language in speech in order to reach some native meaning, we also sought to discuss the Portuguese phonological identity. The initial assumption consists in verifying the trend to maintain stressed vowels and consonant traces in stressed positions, replacement / adaptation / suppression / reinterpretation of vowels and consonants in non-stressed positions, in which prevail the Portuguese speakers‟ perception, non-fluent in English, of what they hear in the songs and the search for some meaning in a sound sequence that is apparently meaningless. However, throughout this work, we identified some processes taken by these PBRL speakers for the phonological adaptation of the original language (English) towards the target language, such as the maintenance of the stressed vowel quality, the monophthongization, the diphthongization, consonant similarity, simplification and complexification of the syllabical pattern and the maintenance of the stress position. Among these processes, there is a greater incidence of the consonant similarity, the maintenance of stress position and the maintenance of the stressed vowel quality

Recipients of present-day cochlear implants (CIs) display remarkable success with speech recognition in quiet, but not with speech recognition in noise. Normal-hearing (NH) listeners, in contrast, perform relatively well with speech recognition in noise. Understanding which speech features support successful perception in noise in NH listeners could provide insight into the difficulty that CI listeners experience in background noise. One set of speech features that has not been thoroughly investigated with regard to its noise immunity is prosody. Existing reports show that CI users have difficulty with prosody perception. The present study endeavoured to determine if prosody is particularly noise-immune in NH listeners and whether the difficulty that CI users experience in noise can be partly explained by poor prosody perception. This was done through the use of three listening experiments. The first listening experiment examined the noise immunity of prosody in NH listeners by comparing perception of a prosodic pattern to word recognition in speech-weighted noise (SWN). Prosody perception was tested in a two-alternatives forced-choice (2AFC) test paradigm using sentences conveying either conditional or unconditional permission, agreement or approval. Word recognition was measured in an open set test paradigm using meaningful sentences. Results indicated that the deterioration slope of prosody recognition (corrected for guessing) was significantly shallower than that of word recognition. At the lowest signal-to-noise ratio (SNR) tested, prosody recognition was significantly better than word recognition. The second experiment compared recognition of prosody and phonemes in SWN by testing perception of both in a 2AFC test paradigm. NH and CI listeners were tested using single words as stimuli. Two prosody recognition tasks were used; the first task required discrimination between questions and statements, while the second task required discrimination between a certain and a hesitant attitude. Phoneme recognition was measured with three vowel pairs selected according to specific acoustic cues. Contrary to the first experiment, the results of this experiment indicated that vowel recognition was significantly better than prosody recognition in noise in both listener groups. The difference between the results of the first and second experiments was thought to have been due to either the test paradigm difference in the first experiment (closed set versus open set), or a difference in stimuli between the experiments (single words versus sentences). The third experiment tested emotional prosody and phoneme perception of NH and CI listeners in SWN using sentence stimuli and a 4AFC test paradigm for both tasks. In NH listeners, deterioration slopes of prosody and phonemes (vowels and consonants) did not differ significantly, and at the lowest SNR tested there was no significant difference in recognition of the different types of speech material. In the CI group, prosody and vowel perception deteriorated with a similar slope, while consonant recognition showed a steeper slope than prosody recognition. It is concluded that while prosody might support speech recognition in noise in NH listeners, explicit recognition of prosodic patterns is not particularly noise-immune and does not account for the difficulty that CI users experience in noise. ## Ontvangers van hedendaagse kogleêre inplantings (KI’s) behaal merkwaardige sukses met spraakherkenning in stilte, maar nie met spraakherkenning in geraas nie. Normaalhorende (NH) luisteraars, aan die ander kant, vaar relatief goed met spraakherkenning in geraas. Begrip van die spraakeienskappe wat suksesvolle persepsie in geraas ondersteun in NH luisteraars, kan lei tot insig in die probleme wat KI-gebruikers in agtergrondgeraas ervaar. Een stel spraakeienskappe wat nog nie deeglik ondersoek is met betrekking tot ruisimmuniteit nie, is prosodie. Bestaande navorsing wys dat KI-gebruikers sukkel met persepsie van prosodie. Die huidige studie is onderneem om te bepaal of prosodie besonder ruisimmuun is in NH luisteraars en of die probleme wat KI-gebruikers in geraas ondervind, deels verklaar kan word deur swak prosodie-persepsie. Dit is gedoen deur middel van drie luistereksperimente. Die eerste luistereksperiment het die ruisimmuniteit van prosodie in NH luisteraars ondersoek deur die persepsie van ’n prosodiese patroon te vergelyk met woordherkenning in spraakgeweegde ruis (SGR). Prosodie-persepsie is getoets in ’n twee-alternatiewe-gedwonge-keuse- (2AGK) toetsparadigma met sinne wat voorwaardelike of onvoorwaardelike toestemming, instemming of goedkeuring oordra. Woordherkenning is gemeet in ’n oopstel-toetsparadigma met betekenisvolle sinne. Resultate het aangedui dat die helling van agteruitgang van prosodieherkenning (gekorrigeer vir raai) betekenisvol platter was as dié van woordherkenning, en dat by die laagste sein-tot-ruiswaarde (STR) wat getoets is, prosodieherkenning betekenisvol beter was as woordherkenning. Die tweede eksperiment het prosodie- en foneemherkenning in SGR vergelyk deur die persepsie van beide te toets in ’n 2AGK-toetsparadigma. NH en KI-luisteraars is getoets met enkelwoorde as stimuli. Twee prosodieherkenningstake is gebruik; die eerste taak het diskriminasie tussen vrae en stellings vereis, terwyl die tweede taak diskriminasie tussen ’n seker en onseker houding vereis het. Foneemherkenning is gemeet met drie vokaalpare wat geselekteer is na aanleiding van spesifieke akoestiese eienskappe. In teenstelling met die eerste eksperiment, het resultate van hierdie eksperiment aangedui dat vokaalherkenning betekenisvol beter was as prosodieherkenning in geraas in beide luisteraarsgroepe. Die verskil tussen die resultate van die eerste en tweede eksperimente kon moontlik die gevolg wees van óf die verskil in toetsparadigma in die eerste eksperiment (geslote- teenoor oop-stel), óf ’n verskil in stimuli tussen die eksperimente (enkelwoorde teenoor sinne). Die derde eksperiment het emosionele-prosodie- en foneempersepsie van NH en KI-luisteraars getoets in SGR met sinstimuli en ’n 4AGK-toetsparadigma vir beide take. In NH luisteraars het die helling van agteruitgang van die persepsie van prosodie en foneme (vokale en konsonante) nie betekenisvol verskil nie, en by die laagste STR wat getoets is, was daar nie ’n betekenisvolle verskil in die herkenning van die twee tipes spraakmateriaal nie. In die KI-groep het prosodie- en vokaalpersepsie met soortgelyke hellings agteruitgegaan, terwyl konsonantherkenning ’n steiler helling as prosodieherkenning vertoon het. Die gevolgtrekking was dat alhoewel prosodie spraakherkenning in geraas in NH luisteraars mag ondersteun, die eksplisiete herkenning van prosodiese patrone nie besonder ruisimmuun is nie en dus nie ’n verklaring bied vir die probleme wat KI-gebruikers in geraas ervaar nie. / Thesis (PhD)--University of Pretoria, 2014. / lk2014 / Electrical, Electronic and Computer Engineering / PhD / unrestricted

The aim of the diploma project is to find a method through which it will be possibleto classify the selected emotion from speech. At the beginning of the work deals with the description of the human body and their voice-generating operation. Furthermore, the text deals with the problem of the human voice into digital form.Great attention is paid to the parameters of the speech signal with an emphasis on describing the symptoms to help the selected emotion. The work deals with therecognition of emotions and a description of some of them. The main part is finding the best methods to reduce symptoms of segmental and suprasegmental speech utterances. The results of success was achieved by comparing the classification of selected emotions when using multiple methods and compare their results. The most important criterion in assessing the results ofthe reduction parameters of the speech signal, based on previous research in this area.

Statistical parametric speech synthesis (SPSS) has seen improvements over recent years, especially in terms of intelligibility. Synthetic speech is often clear and understandable, but it can also be bland and monotonous. Proper generation of natural speech prosody is still a largely unsolved problem. This is relevant especially in the context of expressive audiobook speech synthesis, where speech is expected to be fluid and captivating. In general, prosody can be seen as a layer that is superimposed on the segmental (phone) sequence. Listeners can perceive the same melody or rhythm in different utterances, and the same segmental sequence can be uttered with a different prosodic layer to convey a different message. For this reason, prosody is commonly accepted to be inherently suprasegmental. It is governed by longer units within the utterance (e.g. syllables, words, phrases) and beyond the utterance (e.g. discourse). However, common techniques for the modeling of speech prosody - and speech in general - operate mainly on very short intervals, either at the state or frame level, in both hidden Markov model (HMM) and deep neural network (DNN) based speech synthesis. This thesis presents contributions supporting the claim that stronger representations of suprasegmental variation are essential for the natural generation of fundamental frequency for statistical parametric speech synthesis. We conceptualize the problem by dividing it into three sub-problems: (1) representations of acoustic signals, (2) representations of linguistic contexts, and (3) the mapping of one representation to another. The contributions of this thesis provide novel methods and insights relating to these three sub-problems. In terms of sub-problem 1, we propose a multi-level representation of f0 using the continuous wavelet transform and the discrete cosine transform, as well as a wavelet-based decomposition strategy that is linguistically and perceptually motivated. In terms of sub-problem 2, we investigate additional linguistic features such as text-derived word embeddings and syllable bag-of-phones and we propose a novel method for learning word vector representations based on acoustic counts. Finally, considering sub-problem 3, insights are given regarding hierarchical models such as parallel and cascaded deep neural networks.

Pronunciation instruction in the TEFL classroom has long been a neglected area regardless of its importance for the students. The data in the literature shows that teachers are generally not ready to provide pronunciation instruction for a variety of reasons: lack of qualification and training, theoretical and practical knowledge, time and motivation. The present thesis explores the current situation of pronunciation instruction at a private language school in the Czech Republic using of classroom observations and teacher and student surveys. The results confirm the initial hypothesis that pronunciation instruction including pronunciation error correction is nearly non-existent or occurs sporadically in the classroom. Only one out of four teachers (T1) included explicit pronunciation information into his teaching. The only pronunciation error correction technique observed with the four teachers was a recast which proved to be ineffective in most cases. Even though the teachers and students are generally aware of the importance of pronunciation in foreign language acquisition, their individual beliefs and attitudes towards pronunciation learning and teaching greatly differ. Key words: pronunciation, TEFL, explicit instruction, segmental features, suprasegmental features, teacher and student cognition

Con esta investigación se pretende validar la hipótesis de que un tratamiento innovador de la pronunciación inglesa, que incluye enseñanza explícita y práctica de materiales comunicativos, puede ayudar a restablecer un equilibrio entre las destrezas escritas y orales de nuestros alumnos así como mejorar la competencia lingüística global de éstos en lengua inglesa. Para ello se realizó un estudio cuasi-experimental con grupo control y experimental en el 4º nivel de la E.S.O. El grupo experimental recibió el tratamiento innovador de la pronunciación inglesa y el grupo control recibió un tratamiento tradicional de contenidos de pronunciación inglesa según lo establecido en el Programación Didáctica Anual del Centro. Después de nueve meses de tratamiento, los resultados obtenidos mostraron para las destrezas lingüísticas orales una mejora estadísticamente significativa del grupo experimental con respecto del grupo control, sin que esto supusiera ninguna pérdida para el grupo experimental en las destrezas lingüísticas escritas. / This investigation has tried to validate the hypothesis that an innovative teaching course of treatment in English pronunciation, which includes implicit and explicit learning practice of communicative pronunciation materials, can help to restore an equal balance between the oral and written linguistic skills of our secondary education students in Spain, and also help to improve their global linguistic competence in the English language. To achieve this, a quasi-experimental study with a control and an experimental group was undertaken on the 4th level of E.S.O. (Compulsory Secondary Education in Spain). The experimental group received an innovative teaching treatment of English pronunciation, whereas the group control received a traditional treatment of pronunciation contents as established on the school's official educational programme for the subject of English in the 4th level E.S.O. After nine months of pronunciation teaching treatment, the results obtained showed for the two oral linguistic skills (speaking and listening skills) a significant statistical improvement on the part of the experimental group with respect to those of the control group, this not implying any backwardness on the written linguistic skills performance for the experimental group.

Notre thèse focalise sur une analyse phonostylistique du discours politique oral de M. Dominique de Villepin. Une étude qui aborde les variations de son style vocal dans plusieurs de ces discours oraux, d'une manière qui nous permet d'analyser les éléments discursifs et prosodiques tout au long de ses discours politiques. L'étude portera sur le double codage (linguistique et paralinguistique) caché derrière ses propos politiques. Notre corpus d'étude est l'ensemble d'échantillons tirés d'entretien, débat, conférence, interview. Cette étude, par ailleurs, soulève sa compétence discursive et communicationnelle manifestée quant à l'emploi des unités linguistiques, prosodiques, et discursive perçus comme un rôle praxéologique de pratiques sociales, politiques et de l'expérience dans son discours. Au niveau discursif, l'étude analyse des éléments pragmatiques tels que le tour de la parole les temps verbaux et les effets persuasifs. Au niveau phonostylistique, plusieurs phénomènes prosodiques de valeurs phonostylistiques (intonation, mélodie, accent et pause) seront analysés à l'aide du logiciel Praat pour connaître les différentes rôles pragmatiques et énonciatives en termes de stratégie de persuasion de cet homme politique. La thèse consiste à démontrer le rôle de ces phénomènes prosodiques dans l'établissement des informations nouvelles capables de transmettre un deuxième message vocal à son public. Ce message phonostylistique, qui renforce le premier message discursif des forces illocutoires, rajoute au style de Dominique de Villepin un nouveau procédé d'influence et de convaincre sur un public auditoire. / This thesis studies the phonostylistical analysis of Mr. Dominique de Villepin's political oral discourse. A study which requires several of his vocal style in his different oral speeches in a way that allows us to analyze the discourse and prosodic elements throughout his political speeches. The study will focus on the dual coding (linguistic and paralinguistic) hidden behind his political purposes. The corpus of study is the set of samples taken from his different speeches: debate, conference, interviews. This study also rises to explain his discursive and communicative competence which is manifested by using linguistic, prosodic and discursive units in order to disclose the praxeological role of social practices, political roles and the role of experience in his speeches. Concerning the discursive level, the present study aims to analyze the pragmatic elements such as the tour of speech and verbal and persuasive effects. Concerning the phonostylistical level, several of phonostylistic phenomena which have prosodic values (intonation, melody, accent and pause) are analyzed under the Praat software to identify different pragmatic and enunciative roles in terms of persuasive strategy of this political man. The thesis is to demonstrate the role of prosodic phenomena in the establishment of new information, capable of transmitting a second vocal message to his audience. This phonostylistical message, which supports the first message carried through discursive illocutionary forces, adds to the style of Dominique de Villepin a new method to influence and persuade the public audience