Abstract
In this paper, sound localization in the horizontal plane was simulated by approximated headrelated transfer functions (HRTFs). The approximated HRTFs were obtained by the following filters : (1) FIR filters, (2) third to seventh-order IIR filters, and (3) third-order IIR filters. We performed localization tests in 5 subjects by headphone reproduction of the auditory stimuli using the HRTFS. Results of the localization tests show that sound localization in the horizontal plane simulated by the HRTFs with the IIR filters (2) or (3) is the same accuracy as one simulated by the HRTFS with the FIR filters (1).
