AI Article Synopsis
- Normative data on vocal attack time (VAT) have previously been collected, but past analyses included both negative and positive VAT values, complicating interpretation.
- Negative VAT values indicate a glottal vocal attack, but their significance is unclear, while positive VAT values provide valuable insights for clinical applications.
- The study offers descriptive statistics for positive VAT values and confirms that differences in VAT exist between genders and among different tone categories in Cantonese.
Article Abstract
Normative data for vocal attack time (VAT) have previously been presented, but descriptive statistics and assessments of statistical significance of differences have previously been based on a data corpus that included both negative- and positive-valued VATs. Negative VAT values denote a glottal vocal attack, but, at the present time, the signification of the magnitude of a negative VAT value is unknown. The magnitude of a positive VAT value, on the other hand, conveys useful information about glottal behavior at the time of voice onset and is much more likely to be of use, especially in the clinical domain. We present descriptive statistics for the set of positive-valued VATs and demonstrate that the VAT differences between genders and among tone categories in Cantonese remain valid.
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| http://dx.doi.org/10.1016/j.jvoice.2017.12.014 | DOI Listing |
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