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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Dynamic soundfield system impact on the teacher's voice: case report

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Author(s):
Aline Duarte da Cruz [1] ; Kelly Cristina Alves Silvério [2] ; Vanessa Veis Ribeiro [3] ; Regina Tangerino de Souza Jacob [4]
Total Authors: 4
Affiliation:
[1] Universidade de São Paulo. Faculdade de Odontologia de Bauru - Brasil
[2] Universidade de São Paulo. Faculdade de Odontologia de Bauru - Brasil
[3] Universidade de São Paulo. Faculdade de Odontologia de Bauru - Brasil
[4] Universidade de São Paulo. Faculdade de Odontologia de Bauru - Brasil
Total Affiliations: 4
Document type: Journal article
Source: Revista CEFAC; v. 18, n. 5, p. 1260-1270, 2016-10-00.
Abstract

ABSTRACT The theme of this study was to evaluate the effect of the dynamic soundfield system in one period of the day, the teacher's vocal symptoms and voice quality in the classroom. A case relate of a teacher of 44 years who served in the role for 23 years, and taught in the same room in the morning and afternoon. The teacher used the dynamic soundfield system during one of the periods of the day for about three months. Daily evaluation was carried out of the occurrence of symptoms in the vocal tract, and their intensity before and after school; perceptual and acoustic analysis of voice before and after the observation period, and applying a self-perception questionnaire about the use of dynamic open field system, the end of the observation period. The data were analyzed descriptive and by the Wilcoxon test (p=0.05). There was a decrease in the intensity of the symptom "dryness" to the end of class, and lower incidence of vocal symptoms with the use of dynamic soundfield system, as well as improvement in perceptual and acoustic parameters of the voice after a period of observation and reporting of positives by the teacher on the use of dynamic soundfield system. In the case study, the use of dynamic soundfield system, one of the periods of the day, was effective in reducing symptoms and improvement in perceptual voice quality and acoustics. (AU)

FAPESP's process: 12/08053-3 - Digital Sound field system: evaluation of effectiveness in educational environment
Grantee:Aline Duarte da Cruz
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 12/07796-2 - Digital sound field system: evaluation of effectiveness in educational environment
Grantee:Regina Tangerino de Souza Jacob
Support Opportunities: Regular Research Grants