Sensitivity analysis for hybrid room acoustic simulation regarding spatial data of receiver
* Presenting author
To overcome the limitations of methods using geometrical acoustics, Ray Tracing and Image Source algorithms can be combined with well-known numerical approaches - such as Finite Element Method (FEM) or Boundary Element Method (BEM) - which consider wave-based effects and therefore produce more sophisticated results in the lower frequency range. For this purpose, a room is modeled for both methods and then simulated separately. In a second step, the overall result can be received by uniting the distinct results in the frequency domain.A challenging aspect of room acoustic simulations is the acquisition of input data such as position and orientation of (binaural) receivers. The question arises how accurate this data has to be measured for the purpose of room acoustic simulations. Thus in the present work, a sensitivity analysis is conducted to determine the influence of deviations in spatial data of receivers on the simulation result.