Techniques for measuring and estimating the end-to-end latency and component latencies of a virtual acoustic environment are discussed. These key parameters impact the responsiveness and, hence, " realism " of a virtual environment.
Data on auditory thresholds for acoustic reflections were obtained from 29 subjects as a function of both spatial position and time delay in a simulated 5.1 surround sound listening environment. Absolute thresholds (perception of any type of change) were measured at the 70.7% level using a one up-two down staircase algorithm, for both anechoic and… (More)
The technique of spatial modulating (" jittering ") an existing or newly created auditory alert along a virtual trajectory to improve its detection in a noisy environment is described. Threshold data from 14 participants were gathered as a function of spatial modulation rate (0, 1.6 and 3.3 Hz) of an avionics " wind sheer " alert (two successive 300 ms… (More)
Data on auditory thresholds for virtual acoustic reflections were obtained from 9 participants as a function of spatial position, time delay and stimulus type in a simulated 5.1 surround sound listening room environment. First-order reflections (3, 15 and 30 ms) were determined from a ray-tracing model of the listening room; their level was manipulated to… (More)