ABSTRACT

This situation has been drawing attention to the teaching activity, in which teachers should overcome the many competitive noises to provide their classes and be clear, requiring greater vocal effort and triggering vocal changes (Almeida Filho et al. 2012). These noise levels depend on individual exposure level, type of noise, kind of exposure, and local characteristics (Quintilio et al. 2013), as for example the material that comprises the rooms, the geometry, the materials used in the construction, and the sound environment around these buildings (Almeida Filho et al. 2012).