Wavelet analysis of head-related transfer functions

Author

Lo, T.F. ; Wu, Zhenyang ; Chan, F.H.Y. ; Lam, F.K. ; Chan, J.C.K.

Author_Institution

Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong

Volume

3

fYear

1998

fDate

29 Oct-1 Nov 1998

Firstpage

1549

Abstract

The directional-dependent information in the head-related transfer function (HRTF) is important for the study of human sound localization system and the synthesis of virtual auditory signals. Its time-domain and frequency-domain characteristics have been widely studied by researchers. The purpose of this paper is to explore the ability of discrete wavelet transform to describe the time-scale characteristics of HRTFs. Both the time-domain characteristics and energy distribution of different frequency subbands were studied. Discrete wavelet analysis is found to be a new direction-dependence information showing the relation of the characteristics of the HRTFs to sound source directions

Keywords

acoustic signal processing; bioacoustics; discrete wavelet transforms; hearing; medical signal processing; physiological models; signal representation; time-domain analysis; transfer functions; transient response; directional-dependent information; discrete wavelet transform; energy distribution; frequency subbands; head-related transfer functions; human sound localization system; spatial hearing; time-domain characteristics; time-scale characteristics; virtual auditory signals synthesis; Acoustic reflection; Cats; Delay; Discrete wavelet transforms; Filter bank; Frequency; Humans; Time domain analysis; Transfer functions; Wavelet analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.747184

Filename

747184