Mobile Learning and Computational Simulation Applied in Environmental Acoustics

Abstract

Currently, mobile communication devices have diversified resources, with an increasing number of applications. In the educational field, these devices and functions have been used to contribute to the process of teaching and learning in schools. This field is known as mobile learning (M-learning). In this study, we explored the use of a tablet as a sound pressure meter, whose objective was to provide students with a comprehensive tool for teaching acoustics. To validate this device was used as a standard meter a decibilimeter, previously calibrated. The tests were carried out in three classrooms. On average, the acoustic intensity measured as a decibilimeter was 3.5 dB higher than those obtained as a tablet. The standard deviation obtained shows that both have very close confidence bands. The difference between the measurements performed with two instruments was between 2.4 dB and 4.3 dB. The results indicate that the tablet has the potential to be used as a sound intensity meter. Thus, contributing to the process of teaching and learning in schools.