Spatial frequency response surfaces: an alternative visualization tool for head-related transfer functions (HRTFs)

Author

Cheng, C.I. ; Wakefield, Gregory H.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

2

fYear

1999

fDate

15-19 Mar 1999

Firstpage

961

Abstract

This paper presents an alternative visualization tool for head-related transfer functions (HRTFs) which represents HRTF data sets as magnitude spatial frequency response surfaces. Qualitative analysis of HRTF data is easier in the spatial domain than in the magnitude frequency domain and allows quick comparisons between different subjects´ HRTF sets. In addition, these surfaces exhibit many well-known HRTF-related psychophysical phenomena due to head, torso, and pinna filtering. Finally, these surfaces suggest an interpolation algorithm by which directional transfer functions (DTFs) corresponding to arbitrary spatial locations can be computed from existing DTF measurements at known locations

Keywords

acoustic signal processing; data visualisation; filtering theory; frequency response; hearing; interpolation; transfer functions; DTF measurements; HRTF data; acoustic filtering; directional hearing; directional transfer functions; head filtering; head-related transfer functions; interpolation algorithm; magnitude frequency domain; pinna filtering; psychophysical phenomena; spatial domain; spatial frequency response surfaces; spatial locations; torso filtering; visualization tool; Data analysis; Data visualization; Filtering; Frequency domain analysis; Frequency response; Interpolation; Psychology; Response surface methodology; Torso; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on

Conference_Location

Phoenix, AZ

ISSN

1520-6149

Print_ISBN

0-7803-5041-3

Type

conf

DOI

10.1109/ICASSP.1999.759854

Filename

759854