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Individual talker differences in voice-onset-time.

J Sean Allen1, Joanne L Miller, David DeSteno

  • 1Department of Psychology, Northeastern University, Boston, Massachusetts 02115, USA.

The Journal of the Acoustical Society of America
|February 1, 2003
PubMed
Summary
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Individual talkers show unique voice-onset-time (VOT) patterns in their speech. These distinct VOT characteristics, even after accounting for speaking rate, contribute to talker recognition and word perception.

Area of Science:

  • Phonetics
  • Speech Perception
  • Acoustic Phonetics

Background:

  • Listeners utilize talker-specific acoustic cues for voice and word recognition.
  • Voice-onset-time (VOT) is a key acoustic property distinguishing stop consonant voicing.
  • Existing literature suggests individual talkers exhibit variations in VOT production.

Purpose of the Study:

  • To investigate individual talker variation in voice-onset-time (VOT).
  • To determine if VOT differences persist after controlling for speaking rate variability.

Main Methods:

  • Analysis of voice-onset-time (VOT) in monosyllabic words produced by eight talkers.
  • Hierarchical linear modeling to account for speaking rate variations.
  • Statistical analysis of VOT measurements across talkers.

Related Experiment Videos

Main Results:

  • Confirmed significant individual differences in voice-onset-time (VOT) production among talkers.
  • VOT variations between talkers remained significant, albeit attenuated, after controlling for speaking rate.
  • Talker-specific VOT patterns were observed in voiceless stop consonants.

Conclusions:

  • Voice-onset-time (VOT) is a systematic, talker-specific acoustic property.
  • Talker-specific VOT variations likely contribute to listeners' ability to benefit from talker-specific phonetic experience.
  • Findings support the role of VOT in talker normalization and speech perception.