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Vocal release time: a quantification of vocal offset.

Ben C Watson1, Rick M Roark, R J Baken

  • 1Department of Speech-Language Pathology, New York Medical College, Valhalla, New York 10595, USA. Watson@nymc.edu

Journal of Voice : Official Journal of the Voice Foundation
|April 7, 2012
PubMed
Summary
This summary is machine-generated.

This study introduces vocal release time (VRT) to measure voice offset duration in healthy adults. Females exhibited longer VRT than males, with age-related variations observed in females.

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Area of Science:

  • Speech Science
  • Acoustic Phonetics
  • Voice Production

Background:

  • Vocal offset time is crucial for speech intelligibility.
  • Limited research exists on linguistically unconstrained voice offsets.
  • Vocal release time (VRT) is a novel measure for voice offset duration.

Purpose of the Study:

  • To establish normative vocal release time (VRT) data for healthy young adults.
  • To investigate sex and age differences in VRT.
  • To compare VRT with vocal attack time (VAT).

Main Methods:

  • Collected sound pressure (SP) and electroglottographic (EGG) signals from 112 healthy adults (57 female, 55 male).
  • Utilized time-reversed signals and sinusoidal modeling to analyze amplitude change rates.
  • Computed VRT from the cross-correlation function time lag.

Main Results:

  • Females demonstrated significantly longer mean VRT than males.
  • No consistent age-related trend in VRT was found overall.
  • Females aged 25-29 and over 40 showed shorter VRT compared to younger females.

Conclusions:

  • Presents normative VRT data, a reliable measure of vocal offset duration.
  • VRT acquisition is objective, minimizing subjective bias.
  • VRT and VAT suggest distinct characteristics for voice onsets versus offsets.