Design Of virtual binaural manikins and auditorium acoustic system

Abstract

In this work a numerical model is applied in the development of the design of virtual binaural manikins and auditorium acoustic system. The binaural acoustic manikins is based in human body methodology and is developed using empirical and geometrical equation numerical model also coupled with the CAD system. The auditorium geometry is based in a conic methodology and is developed using a geometric numerical model coupled with a CAD system. The binaural manikin geometry, using the Human Thermal Response and the Sound Propagation numerical models, is used in the human acoustic evaluation. The virtual binaural manikin evaluates the direct and indirect sound and calculates the reverberation time. In this preliminary study an auditorium with a group of rows and columns, occupied with 140 virtual manikins, is developed. Three virtual binaural manikins was selected to be evaluate the reverberation time. The acoustic level, in the left and right ears, that the virtual manikins are subjected are evaluated. In accordance the obtained results, the manikins acoustic level evolution, with the reverberation time in accordance with the international standards, presents slight differences between left and right ear and differences between the different binaural manikins.