Binaural sound reproduction using head-related transfer functions (HRTFs) approximated by IIR filters

Author

Hasegawa, Hiroshi ; Kasuga, Masao ; Matsumoto, Shuichi ; Koike, Atsushi

Author_Institution

Dept. of Inf. Sci., Utsunomiya Univ., Japan

Volume

1

fYear

1999

fDate

1999

Firstpage

150

Abstract

We propose a method using an IIR filter for simple realization of sound image localization. The head-related transfer functions (HRTFs) of a dummy-head are approximated by third to seventh-order IIR filters. The binaural signal sounds using the approximated HRTFs are reproduced via two loudspeakers, and sound image localization on the horizontal plane is realized. Experiments on the direction and the elevation angle of the sound image are carried out with 3 subjects. The results of the experiments show that the localization on the horizontal plane using the approximated HRTFs is of the same accuracy as the case of FIR filters that simulate the HRTFs

Keywords

Hi-Fi equipment; IIR filters; approximation theory; audio signal processing; filtering theory; loudspeakers; sound reproduction; transfer functions; 3D sound fields; FIR filters; IIR filters; approximated HRTF; binaural signal sounds; binaural sound reproduction; digital signal processing; direction; dummy-head; elevation angle; experiments; head-related transfer functions approximation; horizontal plane; loudspeakers; sound image; sound image localization; Acoustical engineering; Azimuth; Ear; Electronic mail; Finite impulse response filter; Frequency; IIR filters; Information science; Loudspeakers; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 99. Proceedings of the IEEE Region 10 Conference

Conference_Location

Cheju Island

Print_ISBN

0-7803-5739-6

Type

conf

DOI

10.1109/TENCON.1999.818372

Filename

818372