Nbr 10152 2017 pdf download

Os mais vendidos Escolhas dos editores Todos os audiolivros. Explorar Revistas. Escolhas dos editores Todas as revistas. Explorar Podcasts Todos os podcasts. Explorar Documentos. NBR Atualizada Enviado por Mariana Pontello. Denunciar este documento. Pesquisar no documento. O ajuste deve ser realizado conforme 7. Os descritores Ld, Ln ou Ldn previstos em 7. J Caso 2 - Fonte sonora B e receptores 1 e 2: Medir, conforme 7. Caso 3 - Fonte sonora B e receptor 3: Medir, conforme 7.

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Building and Environment, v. Questionnaires for assessing preexisting cochlear damage. Evaluation of cochlear function by analysis of acoustic emissions evoked distortion product, made before the students come into class and immediately after the end of these.

Measurement of noise inside the classrooms and recreation areas during the interval. Por isso, devemos separar basicamente os sons em:. Obrigado :. Entre em contato com o contato portalacustica. Thiago, 41 dB na casa do vizinho? To measure the risk of dysphonia in teachers, as well as investigate whether the perceptual-auditory and acoustic aspects of the voice of teachers in situations of silence and noise, the signal-to-noise ratio, and the noise levels in the classroom are associated with the presence of dysphonia.

We performed the following procedures: general Dysphonia Risk Screening Protocol General-DRSP and complementary to speaking voice - teacher Specific-DRSP , voice recording during class and in an individual situation in a silent room, and measurement of the signal-to-noise ratio and noise levels of classrooms. We have found differences between groups regarding physical activity General-DRSP and particularities of the profession Specific-DRSP , as well as in all aspects of the perceptual-auditory vocal analysis.