Simulação acústica tridimensional para cálculo de tempo de reverberação

Abstract

Noise control is essential in acoustic engineering to ensure comfort and sound quality in various environments. For effective projects, it is necessary to understand fundamental concepts such as identifying noise sources, transmission paths, and sound absorption mechanisms. Key aspects of acoustic analysis involve concepts such as sound pressure variation, frequency, sound decay, and reverberation time. Contributions from researchers like Wallace Sabine, Eyring, and Millington have significantly advanced the field of acoustic analysis. This study explores, through simulation, sound pressure levels, reverberation time, and sound absorption coefficients, using technical standards such as ISO 532-1:2017 and ABNT NBR 10152:2017. Computational simulation, based on the Digital Waveguide Mesh (DWM) method using Python, allowed for the representation of sound propagation in three-dimensional environments. Combining practice and simulation, the study aims to consolidate a technical approach to noise control.