Early Reflection Thresholds For Virtual Sound Sources

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 reverberant speech stimuli conditions, from 18 subjects. Additional data were gathered from 11 subjects for tone burst stimuli. Reflection threshold...