Conforto Acústico: revestimento sustentável de sala de aula

Abstract

Introduction: teachers are at high risk for voice disorders, associated with unfavorable working conditions. Among the main factors are long hours in inappropriate classrooms, presence of noise and inadequate acoustics. Acoustic treatment results in decreased reverberation times, lower levels of vocal intensity, increased speech intelligibility, improved prosody and teacher vocal quality. In addition, the use of sustainable materials and social responsibility provide the maintenance of life and guarantee a better quality of life in the future. Objectives: to promote and disseminate a sustainable acoustic comfort model as a strategy for the collective vocal health of teachers. Methods: it is about the execution and diffusion of the acoustic treatment of a classroom, with sustainable materials produced by quilombola communities in Bahia, in the following stages: a) acquisition of perforated canabrava fiber acoustic boards; b) transport of sustainable acoustic material (palm fiber mats and acoustic boards); c) storage of the material in the room to be coated; d) painting the room and installing the acoustic coating; e) elaboration and production of videos without and with acoustic treatment; f) publicity on the social networks and website of TRASSADO/UFBA. Results: 135 acoustic boards were acquired for the covering of room 209 of the Classes Pavilion of Canela (PAC/UFBA), and the respective stages of transport, storage and execution of the project were publicized on the social networks of the TRASSADO/UFBA group. Conclusion: the project reaffirmed the importance of caring for the quality of the teacher's work environment and propagated the model of sustainable acoustic comfort in the classroom as a strategy for collective protection of the voice of teachers. In addition, it favored the vocal health of these professionals, the environment, and the solidarity economy of vulnerable populations, especially during the coronavirus pandemic.