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Changing phonation [p] followed by [a]
[p] is voiceless [a] is voiced The switch from voiceless to voiced could happen two ways Voicing could coincide with the release of [p] Voicing could be delayed till after the release
![Changing phonation [p] followed by [a]](http://slideplayer.com./slide/17360274/101/images/1/Changing+phonation+%5Bp%5D+followed+by+%5Ba%5D.jpg "[p] is voiceless. [a] is voiced. The switch from voiceless to voiced could happen two ways. Voicing could coincide with the release of [p] Voicing could be delayed till after the release.")
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Which is which? voicing coincides with release
voicing is delayed till after release (Catford figure 18)
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VOT (voice onset time) The time between the closure release and the beginning of voicing Voicing coincides with closure release Zero VOT Voicing delayed till after closure release Positive VOT
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VOT
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Negative VOT [b] followed by [a] In English, slightly negative
In French, very negative Fully voiced stop
![Negative VOT [b] followed by [a] In English, slightly negative](http://slideplayer.com./slide/17360274/101/images/5/Negative+VOT+%5Bb%5D+followed+by+%5Ba%5D+In+English%2C+slightly+negative.jpg "In French, very negative. Fully voiced stop.")
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Aspiration A puff of air between the release of the closure and the onset of voicing Please study this website:
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