NYMC Faculty Publications

Research Note: Vocal Attack Time-Extended Analysis

DOI

10.1016/j.jvoice.2017.12.014

Journal Title

Journal of Voice

First Page

258

Last Page

262

Document Type

Article

Publication Date

May 2019

Department

Speech-Language Pathology

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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