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Related Experiment Videos

Revisiting stop-consonant perception for two-formant stimuli.

R N Ohde1

  • 1Division of Hearing and Speech Sciences, Vanderbilt University School of Medicine, Nashville, Tennessee 37232.

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

Stop-consonant perception depends on both spectral transitions and response methods. Varying formant transitions and response conditions significantly impacts how listeners perceive speech sounds.

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Area of Science:

  • Acoustic Phonetics
  • Auditory Perception
  • Speech Science

Background:

  • Understanding consonant-vowel (CV) perception is crucial for speech processing research.
  • Previous models of stop-consonant perception have primarily focused on spectral cues.

Purpose of the Study:

  • To investigate the role of spectral and temporal acoustic properties in stop-consonant perception.
  • To examine how different response conditions influence the perception of synthesized CV stimuli.

Main Methods:

  • Synthesized five two-formant CV stimulus continua across a range of vowels.
  • Manipulated second-formant (F2) starting frequencies and first-formant (F1) transition durations.
  • Tested perception under both open- and closed-response conditions.

Main Results:

  • Substantial F2 transitions elicited labial and alveolar stop responses.
  • Increased F1 transition duration led to increased velar stop responses for some stimuli.
  • The response paradigm significantly influenced stop-consonant perception across all vowel continua.

Conclusions:

  • Both spectral and time-varying spectral properties are integral to stop-consonant perception.
  • Auditory perception models must account for the influence of response conditions on acoustic cue weighting.

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