One of the challenges of virtual reality technology is to provide convincing sensory information to users, to give the illusion of presence within the virtual environment. Audio-visual input combined with self-motion is a step beyond traditional cinematic content, whereby the audio renderer must accommodate a limitless number of potential user interactions and movements within an acoustic ?eld. In this e-Brief a framework for an online (real-time) 6 degrees-of-freedom evaluation platform is detailed. The platform allows psychoacoustic research and subjective testing of binaural audio renderers for virtual reality applications and ?nds application in the development of the MPEG-I Audio Standard.
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