VOWELS IN STANDARD AUSTRIAN GERMAN - Acoustics ...

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Sylvia Moosmüller � The differences of F2 at vowel onset are statistically significant and point to the place of articulation of the plosive. 5.3.3. The vowels /u, o/ Both the vowels /u/ and /o/, especially when articulated with lip protrusion, are articulated in an acoustically stable region. The nomograms calculated by Stevens (1999: 281) show that over a range of about 6 cm (2-8 cm from the glottis) F2 hardly changes, when lips are protruded. This is exactly the region where the constrictions are located for both /u/ and /o/. Since coarticulatory effects appear especially in movements of the second formant, and since there are hardly any differences in F2 between /o/ and /u/, it deemed justifyable to treat /o/ and /u/ as one. It has already been discussed that in sequences where C is an alveolar plosive, lip protrusion starts at release and takes some time till it is accomplished. Therefore, whether lip protrusion is finished at vowel onset depends largely on VOT. Lip protrusion could not be traced at the offset of the transconsonantal vowel. It can be seen from Figure 5.20 that both in bilabial and velar context, F2 at vowel onset is substantially lower than in the alveolar context. 166
c(xmin, xmax) 0.000 0.001 0.002 0.003 0.004 0.005 0.006 0.007 167 Vowels in Standard Austrian German 500 1000 1500 2000 2500 Index Figure 5.20: Density plot of the mean values of F2 and F3 of the first five frames calculated from vowel onset of all /u, o/ vowels in stressed position, speaker sp126, sentence reading task. Red lines: C = bilabial, black lines: C = alveolar, blue lines: C = velar. However, the final values for F2 have not yet been accomplished at vowel onset in both cases. Figure 5.21 shows the sequence [b5o:dn1] "Boden" (floor), cursors are positioned during the burst and at vowel onset.
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VOWELS IN STANDARD AUSTRIAN GERMAN
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Vowels in Standard Austrian German
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1. Introduction: Setting the Theore
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3 Vowels in Standard Austrian Germa
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11 Vowels in Standard Austrian Germ
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Hz 3000 2500 2000 1500 1000 500 0 N
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� Speaker sp127: Student, male, 2
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4. Vowel inventory and features 51
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Spontaneous speech Long vowel + len
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Spontaneous speech Long vowel + len
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Height 0 10 20 30 40 u i o ö ü e
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Vowel category Variability Coeffici
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6.6.3.6. The vowel /u/ 217 Vowels i
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z-score 5,00 4,00 3,00 2,00 1,00 0,
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Appendix 269 Vowels in Standard Aus
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VOWELS IN STANDARD AUSTRIAN GERMAN - Acoustics ...

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