Sound insulation auralization filters design for outdoor moving sources
* Presenting author
Auralization techniques are rapidly attaining popularity, mostly due to their applications in building acoustics and virtual reality. As an application, sound insulation auralization has become a valuable tool to assess the sound insulation of buildings in terms of investigating how the indoor and outdoor noise sources are influencing the daily working and living routine of humans.The airborne sound insulation prediction standards have several simplifications that are implicit in the formulation on which they are based. Therefore, it is necessary to develop a model to build up an auralization chain of the sound insulation by taking into account the complex wave fields on the surfaces of the building elements and the spatial and temporal variation of the sound pressure field inside arbitrarily shaped rooms.We investigate the bending (flexural) wave patterns on the extended walls of buildings, the directionality of the outdoor moving sound sources to construct perceptually correct binaural filters. Additionally, we address the problem of synthesising the room impulse response from the one-third octave band values of the reverberation times. Our proposed approach increases acoustic interaction with the virtual environments creating a deeper, more realistic and immersive scene and leading to more accurate perceptual evaluations of sound insulation.