Head mounted displays for virtual and augmented reality are a hot topic for research and product development. Integral part of these devices is the spatial audio rendering system. Unlike the vision, where humans have approximately 100° field of view, human hearing covers all directions in all three dimensions. This means that the spatial audio system is expected to provide realistic rendering of sound objects in full 3D to complement the stereo rendering of the visual objects. This session will discuss the problems and solutions around the spatial audio systems in the devices for virtual and augmented reality.