VOWELS IN STANDARD AUSTRIAN GERMAN - Acoustics ...
VOWELS IN STANDARD AUSTRIAN GERMAN - Acoustics ...
VOWELS IN STANDARD AUSTRIAN GERMAN - Acoustics ...
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205<br />
Vowels in Standard Austrian German<br />
Although the overall results only show little differences between the two speaking tasks,<br />
the way this overall pattern is achieved can differ considerably. For example, in the<br />
sentence reading task, statistically significant differences between stressed and<br />
unstressed /i/ show up for F1, F2, and F3, whereas, in spontaneous speech, only two<br />
speakers (sp126 and sp180) differentiate stressed and unstressed /i/ for F1. The missing<br />
F1 differentiation is compensated by a higher difference in both F2 and F3 in<br />
spontaneous speech, so that, in the end, both speaking tasks arrive at the same overall<br />
discriminatory power. The compensatory effect is missing in the vowels /e/ and /u/,<br />
which have the highest discriminatory power in the sentence reading task, i.e, they show<br />
the greatest changes in vowel quality.<br />
Stressed and unstressed vowels are primarily discriminated by F2. The least<br />
discriminatory power is exerted by F3. This result is statistically significant (p < 0.01).<br />
Broken down for vowel category, the following picture emerges (see Figure 6.10):<br />
Difference stressed - unstressed (in %)<br />
35,000<br />
30,000<br />
25,000<br />
20,000<br />
15,000<br />
10,000<br />
5,000<br />
0,000<br />
/i/ c /i/ uc /e/ c /e/ uc /u/ c /u/ uc /o/ c /o/ uc /a/<br />
F1 7,229 5,265 8,558 10,412 11,193 7,324 9,189 10,058 21,264<br />
F2 11,192 6,211 15,346 10,718 27,561 24,602 28,686 16,073 5,825<br />
F3 10,455 4,654 9,867 3,352 2,759 4,144 4,520<br />
Figure 6.10: Mean values of the statistically significant differences (in %) between stressed and<br />
unstressed vowels, broken for F1, F2, and F3, pooled over all speakers and<br />
speaking tasks. Legend: c = [+constricted], uc = [–constricted].