Influence of Source-Receiver Distance in Reverberant Room on Front-Back Confusion
Invited paper
Lab. of Acoustics and Thermal Physics,KU Leuven
Monday 1 june, 2015, 17:20 - 17:40
0.9 Athens (118)
Abstract:
Previous studies have shown a positive impact of sound reveberation of a room on front-back localisation performance of sound stimuli based on non-individualized head-related tranfer function (HRTF) within reverberation radius. This paper focuses on a comparison of front-back sound localisation performance for cases where virtual loudspeaker was placed at 5 different distances from the binaural receiver (inside and outside the reverberation radius). Listening tests were based on simulated broad band noise stimuli (500 ms) in reverberant room for one position of receiver and 30 positions of sound sources with two different directivity patterns (omnidirectional and directional). The results infer that the direct-to-reverberant ratio is the main crucial acoustic cue used by people to perform front-back source localization with non-individualized HRTFs.