One-year longitudinal study on teachers’ voice parameters in secondary-school classrooms: relationships with voice quality assessed by perceptual analysis and voice objective measures

Castellana, Antonella; Puglisi, Giuseppina Emma; Giulia, Calosso; Anna, Accornero; Lady Catherine Cantor Cutiva,; Fiammetta, Fanari; Pellerey, Franco; Carullo, Alessio; Astolfi, Arianna

This longitudinal work explores the relationships between three analyses used for assessing teachers’ voice use: the voice monitoring during lessons that describes the teachers’ Vocal Behavior (VB), the perceptual assessment of voice by speech-language pathologists and the estimation of objective parameters from vocalizations to define teachers’ Vocal Performance (VP). About thirty Italian teachers from secondary schools were involved at the beginning and at the end of a school year. In each period, teachers’ vocal activity was monitored using the Voice Care device, which acquires the voice signal through a contact microphone fixed at the neck to estimate sound pressure level, fundamental frequency and voicing time percentage. Once in each period, two speech-language pathologists performed a perceptual assessment of teachers’ voice using the GIRBAS-scale. On that occasion, teachers vocalized a sustained vowel standing in front of a sound level meter in a quiet room. Jitter, Shimmer and other parameters were extracted using Praat, while a new metric of Cepstral-Peak-Prominance-Smoothed was estimated with a MATLAB script. Several relationships between the outcomes of each analysis were investigated, e.g. statistical differences between the dimension “G” from GIRBAS-scale and objective measures for VB and VP, and correlations between objective measures and perceptual ratings were assessed.

One-year longitudinal study on teachers’ voice parameters in secondary-school classrooms: relationships with voice quality assessed by perceptual analysis and voice objective measures / Antonella Castellana; Giuseppina Emma Puglisi; Giulia Calosso; Anna Accornero; Lady Catherine Cantor Cutiva; Fiammetta Fanari;Franco Pellerey; Alessio Carullo; Arianna Astolfi. - In: THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA. - ISSN 0001-4966. - ELETTRONICO. - 141 No. 5(2017), pp. 3541-3542. ((Intervento presentato al convegno Acoustics ‘17 Boston The 3rd Joint Meeting of the Acoustical Society of America and the European Acoustics Association tenutosi a Boston nel 25-29 Giugno 2017.

Titolo:	One-year longitudinal study on teachers’ voice parameters in secondary-school classrooms: relationships with voice quality assessed by perceptual analysis and voice objective measures
Autori:	CASTELLANA, ANTONELLA PUGLISI, GIUSEPPINA EMMA Giulia Calosso Anna Accornero Lady Catherine Cantor Cutiva Fiammetta Fanari PELLEREY, FRANCO CARULLO, ALESSIO ASTOLFI, ARIANNA mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2017
Rivista:	THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Abstract:	This longitudinal work explores the relationships between three analyses used for assessing teachers’ voice use: the voice monitoring during lessons that describes the teachers’ Vocal Behavior (VB), the perceptual assessment of voice by speech-language pathologists and the estimation of objective parameters from vocalizations to define teachers’ Vocal Performance (VP). About thirty Italian teachers from secondary schools were involved at the beginning and at the end of a school year. In each period, teachers’ vocal activity was monitored using the Voice Care device, which acquires the voice signal through a contact microphone fixed at the neck to estimate sound pressure level, fundamental frequency and voicing time percentage. Once in each period, two speech-language pathologists performed a perceptual assessment of teachers’ voice using the GIRBAS-scale. On that occasion, teachers vocalized a sustained vowel standing in front of a sound level meter in a quiet room. Jitter, Shimmer and other parameters were extracted using Praat, while a new metric of Cepstral-Peak-Prominance-Smoothed was estimated with a MATLAB script. Several relationships between the outcomes of each analysis were investigated, e.g. statistical differences between the dimension “G” from GIRBAS-scale and objective measures for VB and VP, and correlations between objective measures and perceptual ratings were assessed.
Appare nelle tipologie:	4.2 Abstract in Atti di convegno

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