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Spatial Hearing Laboratory

Research Topic: 
Behavior Intervention
Hearing Disorders
Neuroscience in Speech
William Yost

Research in the Spatial Hearing Lab is examining various aspects of sound source localization, spatial release from masking, and perception in reverberant spaces, by listeners with normal hearing, with hearing impairment, and those using cochlear implants and/or hearing aids. The Spatial Hearing Laboratory is a specially designed room with materials that reduce the effects of reflections. Sounds can be presented (simultaneously) from 36 loudspeakers located on a five-foot radius sphere. The room allows one to simulate a large variety of acoustic spaces (e.g., a small room as compared to a large room) and to study auditory perception in these different simulated spaces. A computer controlled rotating and tilting chair allows for the study of sound source localization when the listener moves, and head-motion and eye-motion monitors allow for careful control or analyze of head/body motion and eye movements. Recent experiments conducted at ASU have shown that sound source perception in a real world of sound sources that change location and listeners who change location requires multisensory interactions involving at least the visual and vestibular systems. Future research will continue to investigate the multisensory aspect of sound source localization, focus on better understand how spatial hearing assists listeners in processing sounds in noisy and reverberant spaces, and will be aimed to gain new insights about how the auditory system processes multiple sound sources located at different positions. One goal of this research is to provide better assistance to listeners with hearing impairment as they navigate in the acoustic world and attempt to process sounds in noisy and reverberant spaces.

Location: COOR 3440

Phone Number: 480-965-8235