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Related Concept Videos

Assessment of Ventilation II: Respiratory Depth and Rhythm01:29

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Physical Assessment of the Respiratory Tract II: Palpation01:24

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Memorization-Based Training and Testing Paradigm for Robust Vocal Identity Recognition in Expressive Speech Using Event-Related Potentials Analysis
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Developing a single comparison stimulus for matching breathy voice quality.

Sona Patel1, Rahul Shrivastav, David A Eddins

  • 1University of Florida, Gainesville, FL, USA. Sona.Patel@northwestern.edu

Journal of Speech, Language, and Hearing Research : JSLHR
|January 5, 2012
PubMed
Summary

A new single comparison stimulus simplifies quantifying breathy voice quality in perceptual tasks. This method offers reliable voice analysis comparable to older techniques, aiding voice perception model development.

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Area of Science:

  • Speech and Hearing Sciences
  • Acoustic Phonetics
  • Voice Production and Perception

Background:

  • Quantifying voice quality, specifically breathiness, is crucial for understanding speech production and disorders.
  • Previous methods for perceptual breathiness assessment often relied on multiple customized comparison stimuli, limiting standardization.
  • Developing a standardized method for breathiness quantification is essential for reproducible research.

Purpose of the Study:

  • To develop and validate a single comparison stimulus for quantifying breathy voice quality in a perceptual matching task.
  • To compare the effectiveness of a single, non-customized stimulus against multiple customized stimuli for assessing breathiness.
  • To establish a reliable and efficient method for perceptual breathiness estimation across different voices.

Main Methods:

  • Synthetic voice samples of the vowel /a/ were created using a Klatt synthesizer, manipulating aspiration noise levels.
  • A perceptual matching task was conducted using a single sawtooth and noise comparison stimulus to gather breathiness judgments.
  • Linear regression analysis compared perceptual data obtained with the new stimulus to data from customized stimuli.

Main Results:

  • The single, non-customized sawtooth comparison stimulus demonstrated reliability comparable to customized stimuli.
  • Perceptual distances between synthetic voice samples were similar when using the new stimulus versus customized stimuli.
  • The proposed method effectively captured perceptual judgments of breathiness.

Conclusions:

  • A single-variable matching task with a single comparison stimulus is a viable method for obtaining perceptual breathiness estimates.
  • This technique offers a standardized approach for breathiness quantification across various voices and experimental settings.
  • The developed method facilitates the creation of more robust models for voice quality perception.