VOWELS IN STANDARD AUSTRIAN GERMAN - Acoustics ...
VOWELS IN STANDARD AUSTRIAN GERMAN - Acoustics ...
VOWELS IN STANDARD AUSTRIAN GERMAN - Acoustics ...
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Sylvia Moosmüller<br />
the vowels /ï/ and /O/, which expose less lip protrusion as compared to their counter-<br />
parts /u/ and /o/.<br />
F3, however, might be an indicator of fronting for the vowels /u/ and /o/; a higher<br />
F3 pointing to a more fronted articulation. As Table 6.3 demonstrates, statistically<br />
significant differences can be observed for F3 for the vowels /ï/ and /o/ of speaker<br />
sp012 and for the vowel /u/ of speaker sp180. Table 6.5 gives the mean F3 values<br />
measured at vowel midpoint for the back rounded vowels in bilabial, alveolar, and velar<br />
contexts:<br />
Sp012 Sp180<br />
F3 /u/ /ï/ /o/ /O/ /u/ /ï/ /o/ /O/<br />
bilabial 2374 2485 2637 2195 2783 2449 2669 2809<br />
alveolar 2550 2478 2778 2279 2292 2648 2556 2814<br />
velar 2511 2313 2536 1914 2651 2577 2885 2672<br />
Table 6.5: Mean F3 vowel midpoint values according to place of articulation of the preceding<br />
plosive. Speakers sp012 and sp180, logatome reading task. Vowels exposing<br />
statistically significant differences (p < 0.01) for F3 are in bold, vowels which<br />
show no higher values for F3 in alveolar context, are additionally in italics.<br />
Except for the vowels /o/ and /O/ of speaker sp012, which might indicate some fronting,<br />
the values of F3 are not conclusive; i.e. they are not higher in the alveolar than in the<br />
bilabial or velar context. It can be concluded that in the most formal condition, F2<br />
displacement can be observed for the vowels /ï/ and /O/. The highest amount of F2<br />
displacement can, therefore, be observed in the most controlled task, the reading of<br />
logatomes, followed by the sentence reading task, where displacement of F2 can only be<br />
found in the vowel /O/. In spontaneous speech, the differences no longer exist. What can<br />
be observed is a hierarchical diminution of differences in dependence on the speech<br />
situation or speaking task. This strongly suggests that F2 displacement is neither a<br />
matter of undershoot nor a coarticulatory phonetic detail, but rather a process which<br />
uses a phonetic circumstance to maximize contrast in most formal speech situations.<br />
Higher articulatory variability of citation forms as compared to, e.g., read sentences, has<br />
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