Measuring and Modeling the Effect of Source Distance in Head-Related Transfer Functions

Jyri Huopaniemi^*,** and Klaus Riederer^*

^* Laboratory of Acoustics and Audio Signal Processing, Helsinki University of Technology, P.O. Box 3000, FIN-02015 HUT, Espoo, Finland

^** Center for Computer Research in Music and Acoustics, Stanford University, Stanford, CA 94305-8180, USA

E-mail: jyri.huopaniemi@hut.fi, klaus.riederer@hut.fi

ABSTRACT

In this paper, the distance-dependence of the HRTF is investigated. Measurements on 8 human subjects and 1 dummy head were carried out at two source distances, 1.9 and 0.7 meters. The results were compared to a theoretical model. The distance change mainly affects the ILD, whereas the ITD remains unchanged. A simple model for the ILD change as a function of distance is discussed.

This paper was published in the Proceedings of the 16th Int. Congr. on Acoustics and 135th Meeting Acoustical Society of America (ICA/ASA'98), vol. 3, pp. 2083-2084, Seattle, Washington, June 20-26, 1998.

This URL: http://www.acoustics.hut.fi/~ruba/pubs/icaasa98.htm
Last modified: 3 August, 1998
Author: Jyri Huopaniemi, Vesa Välimäki