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Related Experiment Video

Updated: Oct 15, 2025

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception
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An Open Access Standardised Voice Evaluation Protocol.

Luis M T Jesus1, Sara Castilho2, Marta Alves3

  • 1Institute of Electronics and Informatics Engineering of Aveiro (IEETA) and School of Health Sciences (ESSUA), University of Aveiro, Aveiro, Portugal.

Journal of Voice : Official Journal of the Voice Foundation
|October 25, 2021
PubMed
Summary
This summary is machine-generated.

A new standardized voice assessment protocol demonstrates high reliability for evaluating voice disorders. This tool aids clinicians and researchers in characterizing vocal pathology and planning interventions effectively.

Keywords:
AssessmentProtocolVoice

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Area of Science:

  • Speech and Hearing Sciences
  • Otolaryngology
  • Clinical Linguistics

Background:

  • Comprehensive voice quality evaluation is crucial for diagnosing voice disorders and guiding treatment.
  • Existing voice assessment tools lack standardization, hindering consistent clinical practice and research.
  • A validated protocol is needed to provide a reliable framework for voice assessment.

Purpose of the Study:

  • To develop and validate a standardized protocol for voice assessment.
  • To create a comprehensive tool for clinical practice and research in voice disorders.
  • To ensure the protocol's reliability and applicability across diverse clinical needs.

Main Methods:

  • Literature review to establish initial protocol structure and content.
  • Content validity assessed by voice specialists using modified Bland and Altman method and Intraclass Correlation Coefficient (ICC).
  • Inter-rater and intra-rater reliability evaluated using Cohen's kappa (k) and Spearman's Correlation Coefficient (ρ) on participants with vocal pathology.

Main Results:

  • Content validity was established through expert consensus.
  • Intra-rater reliability for nominal variables was near-perfect (mean k=0.977).
  • Inter-rater reliability for nominal variables was high (mean k=0.893), and ordinal/quantitative variables showed excellent correlation (mean ρ=0.912).

Conclusions:

  • The standardized voice assessment protocol exhibits strong content validity and high intra- and inter-rater reliability.
  • This protocol serves as a valuable tool for assessing patients, training specialists, and building voice databases.
  • The protocol is designed for flexibility, accommodating various voice expert backgrounds and assessment requirements.