Simulation models

Abstract

After getting familiar with the principle of auralization, i. e., the separation of the acoustic problem in a model of signal transmission and binaural synthesis, and after having the sources characterized, we will now focus on the second key component of auralization. We consider the excitation signal as known and ready for convolution. Now, the propagation functions for sound and vibration must be measured or modelled. The task is to define and apply a theoretical approach to the propagation problem, either in free propagation or in a problem with boundary conditions. It is clear that not all methods listed in this chapter can be used for virtual reality applications. The computation time involved in the methods is to be discussed separately. In future more and more simulation methods, however, will be applicable. The focus, therefore, is set to the physical background of the simulation methods and not on computational constraints. In Chaps. 11–15, we will discuss in detail up-to-date simulations methods applicable to virtual reality systems.