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VOWELS IN STANDARD AUSTRIAN GERMAN - Acoustics ...

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Sylvia Moosmüller<br />

language variety. In principle, as soon as the phoneme inventory is established 3 , the<br />

speaker is able to execute the communicative function in – from a phonological point of<br />

view – the most reliable way, namely in form of a biunique relationship between<br />

phoneme and phonetic output, i.e. “between signans and signatum” (Dressler 1984: 36).<br />

However, in order to ensure correct perception of the intended phoneme sequence,<br />

various adaptations are necessary. For example, lip protrusion of a rounded vowel has to<br />

start in the preceding consonant in order to make protrusion audible (Maeda 1999,<br />

Vaxelaire et al. 2003). Since speech is planned in terms of auditory targets (Guenther et<br />

al. 2006, Perkell et al. 2006), such processes are absolutely essential and, consequently,<br />

obligatory. The majority of processes are, however, language-, language variety-, or<br />

even speaker-specific. Anticipatory lip protrusion, for example, might affect even more<br />

preceding segments than just the immediately preceding consonant (see 5.1,<br />

Moosmüller 2007b). However, by applying anticipatory lip protrusion, motor<br />

complexity is increased (Van der Merwe 1997, Theron 2003), because lip protrusion is<br />

not related to the preceding phonemes (provided these are specified as unrounded).<br />

Therefore, one might ask why speakers abandon the biunique relationship and apply –<br />

from a cross-linguistic perspective – all sorts of processes? Why do French speakers<br />

apply anticipatory lip protrusion and, by doing so, not only increase motor complexity,<br />

but also risk distinctiveness (e.g. détour vs. de tour)? Why do Standard Austrian<br />

German speakers prefer to restrict anticipatory lip protrusion to the immediately<br />

preceding consonant? Given the language-specific and often speaker-specific<br />

application of processes, the answer can hardly be found in either enhancement of<br />

pronounceability or enhancement of perceptibility. However, languages have pre-<br />

ferences about which processes they apply under which conditions, and which they<br />

suppress. Phonology and phonetics, together with the remaining linguistic components,<br />

therefore play a decisive role in distinguishing languages or language varieties from<br />

3<br />

I.e., first language acquisition is completed and the speaker has no speaking or hearing<br />

disorders.<br />

2

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