Quiet Area Detection in 3D Sound Field Simulation via Delaunay Triangulation

The improvement of the comfort noise in digital home is a difficult problem since the complexity of the indoor environment. To address this challenge, this paper presents a novel approach to detecting quiet zones in the indoor space to support the research of the indoor sound barrier. As the preliminary visualization analysis of noise isolation, the method is located to the simulation of the simple sound source, according to computing the transmission of the sound, taking boundary reflection and attenuation into consideration to analyze sound field distribution and detecting the impact points. After that Delaunay triangulation is introduced to the acoustic field to form quiet areas from the impact points. The experimental results demonstrate that effective geometric analysis can improve the knowledge of indoor sound field distribution, and we will devote to research the sound sources more complex and realistic in the future.