Related Experiment Video
Updated: Jan 19, 2026

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
Published on: September 27, 2024
Effects of a Voice Training Program on Acoustics, Vocal Use, and Perceptual Voice Parameters in Catalan Teachers
Cecília Gassull1, Pere Godall2, Erica Polini2
1Department of Education in Musical, Artistic and Corporal Expression, Faculty of Education, Universitat Autònoma de Barcelona, Barcelona, Spain, cecilia.gassull@uab.cat.
Objectives:
To assess the effect of EVES (Education for a Healthy and Efficient Voice), a voice training program aimed at promoting the use of an efficient and healthy voice in teachers.
Sample And Method:
Twenty-two teachers in the city of Granollers (Catalonia, Spain) were included in this research. The effect of the EVES program was evaluated focusing on the analysis of physiologic parameters on the one side (stroboscopy analysis), and on perceptual parameters on the other (Q-EVES questionnaire, Voice Handicap Index-10 [VHI-10], and GRBAS [Grade, Roughness, Breathiness, Asthenia, Strain Scale]).
Results:
The teachers incorporated the vocal strategies in their professional life and reported that the perception of difficulty in using their voice decreased. We observed a significant improvement in VHI-10 markers, in voice management abilities in the classroom, in perceptive and subjective voice parameters, and in some functional lesions.
Conclusions:
The results suggest that the educational intervention model may have a positive effect on teachers' vocal care.
Related Concept Videos
Auditory Perception
Larynx
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
Air-entraining Agents
Perceiving Loudness, Pitch, and Location
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Perception of Sound Waves
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
Impression Management Techniques IV: Altercasting

