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Related Experiment Videos

The multidimensional nature of pathologic vocal quality

J Kreiman1, B R Gerratt, G S Berke

  • 1Division of Head and Neck Surgery, UCLA School of Medicine 90024.

The Journal of the Acoustical Society of America
|September 1, 1994
PubMed
Summary

Breathiness and roughness are complex voice qualities that are not well-defined. Understanding their relationship is crucial for accurate pathological voice assessment and improving listener reliability.

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Area of Science:

  • * Speech and Hearing Science
  • * Acoustics
  • * Otolaryngology

Background:

  • * Pathological voice assessment often uses subjective terms like 'breathy' and 'rough'.
  • * Lack of standardized definitions hinders consistent voice quality evaluation.
  • * The perceptual relationship between breathiness and roughness remains unclear.

Purpose of the Study:

  • * To investigate the relationship between breathy and rough voice qualities.
  • * To determine how listeners perceive and rate these voice characteristics.
  • * To identify factors contributing to inter-rater variability in voice quality judgments.

Main Methods:

  • * Expert listeners judged voice sample dissimilarity based on breathiness and roughness.
  • * A second group of listeners provided unidimensional ratings for breathiness and roughness.

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  • * Multidimensional scaling (MDS) analyses were employed to explore perceptual relationships.

    • Main Results:

    • * Breathiness and roughness were identified as related, multidimensional perceptual constructs.
    • * Both unidimensional ratings of breathiness and roughness were needed for accurate similarity descriptions.
    • * Listener judgments of roughness were significantly influenced by voice breathiness, with listener-dependent variations.

    Conclusions:

    • * Breathiness and roughness are complex, multidimensional voice qualities.
    • * Inter-rater reliability in voice quality ratings is affected by individual listener focus on perceptual aspects.
    • * Standardized definitions and listener training are needed for consistent pathological voice assessment.