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F1 structure provides information for final-consonant voicing.

W V Summers1

  • 1Department of Psychology, Indiana University, Bloomington 47405.

The Journal of the Acoustical Society of America
|August 1, 1988
PubMed
Summary

Listeners use early vowel sound frequencies, not just endings, to determine if a consonant is voiced or voiceless. This acoustic cue in speech perception impacts consonant voicing judgments.

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Area of Science:

  • Phonetics
  • Acoustic Phonetics
  • Speech Perception

Background:

  • Vowel F1 offset frequencies differ based on postvocalic consonant voicing.
  • Listeners utilize these F1 offset differences for consonant voicing judgments.
  • Prior research indicated F1 frequency differences extend beyond vowel offset.

Purpose of the Study:

  • To investigate if F1 frequency differences in early vowel portions influence perception of postvocalic consonant voicing.
  • To determine the perceptual relevance of F1 onset and steady-state frequencies in preceding vowels.

Main Methods:

  • Examined perceptual judgments of final-consonant voicing.
  • Focused on the role of F1 frequency characteristics (onset, steady-state) in preceding vowels.

Main Results:

  • F1 frequency differences in the initial transition and steady-state regions of vowels were found to be significant.
  • These early F1 frequency variations demonstrably influence listeners' perception of consonant voicing.

Conclusions:

  • Acoustic cues in the early parts of vowels are crucial for perceiving postvocalic consonant voicing.
  • Speech perception relies on a broader range of acoustic information within vowels than previously emphasized.

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