The evaluation of the effect of sound directionality in horizontal plane on human auditory distance perception in a large reverberant room

摘要

An evaluation of sound localization effect on the auditory distance estimation in a user study is presented. Binaural Room Impulse Responses of sixty positions were recorded in a reverberant space usig a dummy head. The recordings were evaluated by the users in a headphone-based listening test to analyze the listeners' ability to perceive the distance with and without prior knowledge of direction of origin. When known, the distance estimation accuracy in left and right sides of the head in near field (2m, 4m) was improved and at some angles saw a significant improvement. However, known direction did not assist the users in determining the larger distance levels (6m, 8m, 10m). No improvements were seen in the front and back sides for all directions.