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Related Experiment Video

Updated: Jun 2, 2026

Memorization-Based Training and Testing Paradigm for Robust Vocal Identity Recognition in Expressive Speech Using Event-Related Potentials Analysis

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Published on: August 9, 2024

[Voice analysis before and after vocal tiredness].

Mirjana Petrović-Lazić¹, Snezana Babac, Milica Tatović

¹Klinicko-bolnicki centar Zvezdara, Klinika za otorinolaringologiju, Beograd, Srbija.

Vojnosanitetski Pregled

|April 30, 2011

Summary

Vocal tiredness significantly alters voice acoustic characteristics in school teachers. This study confirms a link between vocal fatigue and voice quality changes in this demanding profession.

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Area of Science:

Speech and Hearing Sciences
Occupational Health
Acoustic Phonetics

Context:

School teachers experience high vocal demands.
Vocal fatigue impacts voice quality and acoustic properties.
Understanding these changes is crucial for vocal health in educators.

Purpose:

To investigate the effect of vocal tiredness on the acoustic voice characteristics of school teachers.
To analyze specific acoustic parameters affected by vocal fatigue.
To establish a relationship between occupational voice use and voice quality.

Summary:

A study of 36 school teachers analyzed voice recordings before and after a working week.
Acoustic parameters related to signal, noise, and tremor were measured.
Statistically significant differences in voice parameters due to vocal tiredness were observed (p < 0.01).
Gender, age, and smoking status did not significantly influence these voice characteristics.

Impact:

The findings suggest a causal link between vocal tiredness and voice quality degradation in professional voice users.
Highlights the occupational risks associated with teaching and the need for vocal hygiene strategies.
Provides objective acoustic data supporting the subjective experience of vocal fatigue in teachers.