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Positional Neutralization - Linguistics - University of California ...

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final vowel deletion, as can be seen in the Austronesian languages discussed in Blevins<br />

(1997) and Blevins and Garrett (1999).<br />

Final vowel devoicing is generally assumed to have its phonetic roots in the steep<br />

drop in subglottal pressure associated in most languages with the ends <strong>of</strong> phrases or<br />

utterances along with final lowering <strong>of</strong> F0 (Dauer 1980, Gordon 1998). This decreased<br />

subglottal pressure can result (particularly with a close supralaryngeal constriction<br />

downstream) in the elimination <strong>of</strong> the pressure drop across the glottis necessary for<br />

voicing to be maintained. In this original form we may conceive <strong>of</strong> it as a form <strong>of</strong> passive<br />

devoicing (as discussed in e.g. Ladefoged and Maddieson 1996: 49), in which devoicing<br />

occurs as a consequence <strong>of</strong> some other phonetic process, rather than as a result <strong>of</strong> the<br />

planned implementation <strong>of</strong>, e.g. glottal abduction.<br />

Gordon (1998) presents a crosslinguistic survey <strong>of</strong> vowel devoicing in both<br />

internal and final positions, in which he makes a number <strong>of</strong> generalizations <strong>of</strong> relevance<br />

to this discussion. The first is that in nearly all cases the presence in a language <strong>of</strong> word-<br />

internal vowel devoicing implies the presence <strong>of</strong> final vowel devoicing, though the<br />

opposite is not true. Gordon cites four apparent exceptions to this generalization, noting<br />

that in three <strong>of</strong> them (Turkish, Azerbaijani, and Montreal French) stress is fixed on the<br />

final syllable 86 . We will return to the topic <strong>of</strong> the devoicing <strong>of</strong> stressed vowels later in this<br />

86<br />

Stressed vowels rarely devoice crosslinguistically, presumably due to the various language-specific<br />

combinations <strong>of</strong> increases in F0, amplitude, or duration associated with stressed vowels. It should be noted<br />

192

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