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Individual differences in voice quality perception.

J Kreiman1, B R Gerratt, K Precoda

  • 1VA Medical Center, West Los Angeles.

Journal of Speech and Hearing Research
|June 1, 1992
PubMed
Summary
This summary is machine-generated.

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Listeners reliably perceive voice differences, especially in pathological voices. Acoustic features used depend on voice variability, suggesting prototype models of voice perception are applicable.

Area of Science:

  • Speech and Hearing Sciences
  • Acoustic Phonetics
  • Perceptual Psychology

Background:

  • Understanding voice quality perception is crucial for clinical diagnosis and human-computer interaction.
  • Previous research often assumes listener consistency, which may not hold for diverse voice types.

Purpose of the Study:

  • To investigate how listeners (expert and naive) judge voice dissimilarity between normal and pathological voices.
  • To determine the acoustic features listeners rely on for voice quality judgments.
  • To evaluate the applicability of prototype models to voice perception.

Main Methods:

  • Sixteen listeners rated the dissimilarity of voice pairs from pathological and normal groups.
  • Nonmetric multidimensional scaling was used to analyze individual listener judgments.

Related Experiment Videos

  • Acoustic parameters of the voice samples were analyzed for variability.

    • Main Results:

    • Individual listener correlations were low, but scaling solutions showed reliable judgments.
    • Listeners showed greater disagreement on pathological voices due to wider acoustic variation.
    • Perceptual salience of acoustic features was linked to their variability within stimulus sets.

    Conclusions:

    • Listeners' voice perception is reliable and influenced by stimulus variability, supporting prototype models.
    • Traditional reliability measures may be inadequate for voice quality studies.
    • Explicit stimulus comparisons are important for studying voice perception.