19AES-GA06: Simulating Real World Acoustic Phenomena: From Graphics to Audio

Presenter:
Christophe Tornieri, Audiokinetic

Simulating real world acoustic phenomena in virtual environments drastically enhances immersion. However, computing high order reflections and convincing diffraction towards more dynamic and realistic audio scenes is a challenging task to achieve in real-time. In this talk we propose an approach derived from modern 3D graphic rendering techniques used in CGI. We will first introduce the general concepts behind ray tracing and stochastic methods, then present the adaptation of these techniques to spatial audio, focusing on how to compute reflections and diffraction while maintaining time and spatial coherence.