Desenvolvimento de plataformas Web para auralização e monitoramento ambiental

Abstract

This study stands out for the creation of two innovative web platforms in the field of acoustics, aiming to develop two web platforms. The first platform is capable of performing real-time auralizations, while the second platform aims to receive data of Z-weighted sound pressure level in one-third octave bands. For the development of both platforms, it was necessary to carry out the functional requirements gathering process, and using the Laravel framework, all entities were developed with their methods and attributes. The "Web Platform for Auralization" has specific objectives to provide users with the virtual exploration of various classrooms, allowing convolution between input audio and chosen impulse responses, including the option to use Head-Related Transfer Functions (HRTFs) or even upload custom signals. Convolution is performed through the Web Audio API, with comparative validation using Matlab software. The effectiveness of HRTFs was confirmed through questionnaires, with 85.7% of participants correctly identifying the sound location. The second platform, "Web Platform for Environmental Monitoring," is an Application Programming Interface (API) with objectives to allow the registration and monitoring of sound pressure level meters, presenting real-time and historical data through time and frequency domain graphs, validated with real MEMS meter data. Both platforms have an administrative area for efficient management. The results not only validate the effectiveness of the proposed solutions but also highlight the potential of these platforms to contribute significantly to the advancement of research and practical application in the field of acoustics.