"But the increasing interest in connected, more specifically spontaneous speech data bases has made it mandatory for researchers to enter into phonetics and phonology above the word in real-life communication, and it is in this domain that glottalisation phenomena abound." (Kohler 2001: 317) Abstract: The present paper examines glottal stops and the glottalisation of word-initial vowels in Polish and German. The presence of glottal marking is studied depending on speech style ('speech' vs. 'dialogue'), prominence, phrasal position, speech rate, word type, preceding segment, and following vowel height. A question is also posed about the extent to which glottal marking might be dependent on the rhythmic structure of a given language or style. We analyzed recordings of 18 Polish and German speakers. The results point to significant differences between the two languages. In German, glottal marking occurs significantly more often (63.4%) than in Polish (45%). Whereas in both languages (and both styles) the majority of prominent vowels are more often glottally marked than non-prominent vowels, in German word-initial non-prominent syllables are also marked relatively often. Regarding phrase position, glottal marking occurs significantly more often at the phrase-initial position compared to phrase-medial position in Polish, while no such difference has been found in German. In addition, it is shown that in both languages glottal marking is strongly dependent on the tongue height of the marked vowel: low vowels are more frequently glottalised than non-low vowels. Finally, glottal marking in Polish is more likely to occur when rhythmic variability shifts towards the 'indeterminate', strengthening the hypothesis that glottal marking facilitates perceptual grouping.

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Glottal marking of vowel-initial German words by glottalization and glottal stop insertion were investigated in dependence on speech rate, word type (content vs. function words), word accent, phrasal position and the following vowel. The analysed material consisted of speeches of Konrad Adenauer, Thomas Mann and Richard von Weizsäcker. The investigation shows that not only the left boundary of accented syllables (including phrasal stress boundary) and lexical words favour glottal stops/glottalization, but also that the segmental level appears to have a strong impact on these insertion processes. Specifically, the results show that low vowels in contrast to non-low ones favour glottal stops/glottalization even before non-accented syllables and functional words.

Articulatory models can be used in phoniatrics for the visualisation of speech disorders, and can thus be used in teaching, the counselling of patients and their relatives, and in speech therapy. The articulatory model developed here was based on static MRI data of sustained sounds. MRI sequences are now being used to further refine the model with respect to speech movements. Medio-sagittal MRI sections were recorded for 12 consonants in the symmetrical context of the three point vowels [i:], [a:] and [u:] for this corpus. The recording-rate was eight images/s. The data show a strong influence of the vocalic context on the articulatory target-positions of all consonants. A method for the reduction of the MRI data for subsequent qualitative and quantitative analyses is presented.

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