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Changing phonation

Learn about voiced and voiceless sounds, Voice Onset Time (VOT), aspiration, and the timing of voicing in phonetics with examples in English and French. Explore more on phon.ucl.ac.uk.

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Changing phonation

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  1. 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

  2. Which is which? voicing coincides with release voicing is delayed till after release (Catford figure 18)

  3. 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

  4. VOT

  5. Negative VOT • [b] followed by [a] • In English, slightly negative • In French, very negative • Fully voiced stop

  6. Aspiration • A puff of air between the release of the closure and the onset of voicing • Please study this website: • http://www.phon.ucl.ac.uk/home/johnm/siphtra/plostut2/plostut2.htm

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