Implementation Of A Virtual Audio Reality System

INTRODUCTION Virtual audio reality environments have in recent years become popular in such fields as computer music, acoustics, multimedia, and telecommunications [1]. There are often computational constraints that lead to very simplified systems that faintly resemble the physical reality. We present a distributed expandable virtual audio reality system that can accurately yet efficiently model room acoustics and spatial hearing in real time. In Chapter 2, real-time binaural modeling of room acoustics is discussed. Digital signal processing (DSP) aspects of room acoustics and head-related transfer function (HRTF) implementation are overviewed in Chapter 3. In Chapter 4, the implementation of the system is described. There are companion papers that discuss parts of the Helsinki University of Technology virtual audio reality project in greater detail [2] [3]. A more complete description of the DIVA (Digital VIrtual Acoustics) system is given in [4] 2 REAL-TIME BINAURA