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)
Knowledge analytics addresses processes for the analysis of integrated quantitative data and qualitative information, within structured and unstructured media. A military experimentation knowledge analytics system and processing methodology is advanced as an instance of knowledge analytics. The referenced knowledge system was developed to analyze new… (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)