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Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
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Visual influences on alignment to voice onset time.

Kauyumari Sanchez1, Rachel M Miller, Lawrence D Rosenblum

  • 1University of California, 900 University Avenue, Riverside, CA 92521, USA.

Journal of Speech, Language, and Hearing Research : JSLHR
|March 12, 2010
PubMed
Summary
This summary is machine-generated.

Speech alignment to voice onset time (VOT) can be influenced by visual speech cues. This study demonstrates that both auditory and visual speech information shape our speech production during shadowing experiments.

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Area of Science:

  • Phonetics and Speech Science
  • Psycholinguistics
  • Auditory and Visual Perception

Background:

  • Speech shadowing involves imitating heard speech.
  • Voice onset time (VOT) is a crucial phonetic cue for speech perception.
  • Inadvertent imitation, or alignment, occurs during speech shadowing.

Purpose of the Study:

  • To investigate if visual speech information influences speech alignment to voice onset time (VOT).
  • To determine the impact of auditory-only VOT on speech shadowing.
  • To assess the combined effect of auditory VOT and visual speech rate on alignment.

Main Methods:

  • Speech shadowing experiments were conducted using auditory /pa/ syllables with varying VOTs.
  • Experiment 1 involved 19 participants shadowing audio-only syllables.
  • Experiment 2 involved 16 participants shadowing audiovisual syllables, combining audio VOT with visual speech articulation.

Main Results:

  • Auditory VOT significantly influenced participants' produced VOT in Experiment 1.
  • In Experiment 2, both auditory VOT and visual syllable rate affected participants' produced VOT.
  • Audiovisual speech information demonstrably impacts speech production alignment.

Conclusions:

  • Visual speech information, similar to auditory speech, can induce alignment to phonetic properties.
  • This suggests that multimodal speech input plays a significant role in speech imitation.
  • Findings highlight the integration of visual and auditory cues in shaping speech production.