Motor Speech Disorders: Advances in Assessment and Treatment

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Grundzüge der Phonologie

Intonation, Perception, and Language.

Evolutionary phonology: the emergence of sound patterns

Preface Special note to English speaking students learning French Organization of the book The language of reference Acknowledgments Part I. Introductory Concepts: 1. Orthography, pronunciation, and phonetic notation 2. Basic notations of phonetics Part II. Vowels and Glides: 3. Vowel systems 4. Distribution of vowels 5. Nasal vowels 6. E 7. Glides Part III. Consonants: 8. Consonantal systems 9. L and R 10. Double consonants and final consonants 11. Liaison Part IV. Suprasegmentals: 12. Stress and intonation Part V. Appendices Bibliography.

The Sounds of French: An Introduction

Formant values of oral vowels are automatically measured in a total of 50000 segments from four hours of journalistic broadcast speech in French and German. After automatic segmentation using the LIMSI speech alignment system, formant values are automatically extracted using PRAAT. Vowels with unlikely formant values are discarded (4%). The measured values are exposed with respect to segment duration and language identity. The gap between the measured mean Fi values and reference Fi values is inversely proportional to vowel duration: a tendency to reduction for vowels of short duration clearly emerges for both languages. These results are briefly discussed in terms of centralisation and coarticulation.

Impact of duration on F1/F2 formant values of oral vowels: an automatic analysis of large broadcast news corpora in French and German.

Eight languages (Arabic, English, French, German, Italian, Mandarin Chinese, Portuguese, Spanish) with 6 differently sized vowel inventories were analysed in terms of vowel formants. A tendency to phonetic reduction for vowels of short acoustic durations clearly emerges for all languages. The data did not provide evidence for an effect of inventory size on the global acoustic space and only the acoustic stability of quantal vowel /i/ is greater than that of other vowels in many cases. Keywords: vowel formants, adaptive dispersion, reduction, quantal theory.

http://www.icphs2007.de/conference/Papers/1481/1481.pdf

Impact of duration and vowel inventory size on formant values of oral vowels: an automated formant analysis from eight languages.

This study presents an analysis of over 4000 tokens of words produced as variants with and without schwa in a French corpus of radio-broadcasted speech. In order to determine which of the many variables mentioned in the literature influence variant choice, 17 predictors were tested in the same analysis. Only five of these variables appeared to condition variant choice. The question of the processing stage, or locus, of this alternation process is also addressed in a comparison of the variables that predict variant choice with the variables that predict the acoustic duration of schwa in variants with schwa. Only two variables predicting variant choice also predict schwa duration. The limited overlap between the predictors for variant choice and for schwa duration, combined with the nature of these variables, suggest that the variants without schwa do not result from a phonetic process of reduction; that is, they are not the endpoint of gradient schwa shortening. Rather, these variants are generated early in the production process, either during phonological encoding or word-form retrieval. These results, based on naturally produced speech, provide a useful complement to on-line production experiments using artificial speech tasks.

/pdf/what-affects-the-presence-versus-absence-of-schwa-and-its-1h3dxfcah2.pdf

What affects the presence versus absence of schwa and its duration: A corpus analysis of French connected speech

Le traitement automatique de la parole peut concretement contribuer a eclairer de nombreuses questions concernant la variabilite phonemique a l'oral L'exploitation de grandes masses de donnees permet ainsi de degager de grandes tendances, dont une interpretation plus fine repose ensuite a la fois sur un eclairage linguistique et sur un certain nombre de precautions methodologiques Nous allons focaliser l'etude sur la variabilite des voyelles orales en francais Des mesures de duree et de formants, a partir des grands corpus PFC et ESTER utilises a la fois par les chercheurs en linguistique et en traitement automatique de la parole permettront d'illustrer l'impact de divers parametres, notamment le style de parole, la position syllabique et l'origine regionale des locuteurs Enfin la realisation des voyelles mi-fermees anterieures sera examinee a l'aide de classification automatique de variantes dans un cadre bayesien ABSTRACT Automatic speech processing methods and tools can contribute to shedding light on many issues relating to phonemic variability in speech The processing of huge amounts of speech thus allows to extract main tendencies, for which detailed interpretations then require both linguistic and methodological insights The experimental study focuses on the variability of French oral vowels in the PFC and ESTER corpora, which are widely used both by linguists and researchers in automatic speech processing Duration and formant measures allow to illustrate global variations depending on different parameters, which include speech style, syllable position and the speakers' regional origins The last part addresses the phonetic realization of close-mid front vowels, using automatic classification in a Bayesian framework MOTS-CLES : traitement automatique de la parole, RAP, alignement de la parole, transcription phonemique, classification, grands corpus, variation phonologique et phonetique, f0, duree, suivi de formants, voyelles moyennes, harmonie vocalique

Cédric Gendrot

Papers

Impact of duration on F1/F2 formant values of oral vowels: an automatic analysis of large broadcast news corpora in French and German.

Impact of duration and vowel inventory size on formant values of oral vowels: an automated formant analysis from eight languages.

What affects the presence versus absence of schwa and its duration: A corpus analysis of French connected speech

Contributions du traitement automatique de la parole à l’étude des voyelles orales du français

Phonetic reduction versus phonological deletion of French schwa: Some methodological issues