Virtual audition technology for head-mounted electronic sentinel system

Author

Guangyu Liu ; Cheng Zhang ; Xiang Zhao

Author_Institution

Dept. of Equip. Command & Manage., Ordnance Eng. Coll., Shijiazhuang, China

fYear

2012

fDate

9-11 Nov. 2012

Firstpage

531

Lastpage

535

Abstract

Based on the engineering application of virtual audition in head-mounted electronic sentinel localization systems, the total response of a uniform circular array (UCA) with a rigid sphere and an impedance sphere is analyzed. The influence of offset between the UCA and the rigid sphere on the array received signals is studied. Eigenbeam beamforming is deduced in the eigenbeam space derived from the soundfield decomposition. Head related transfer function (HRTF) for the sound wave direction are synthesized automatically from measure database by combining the directivity of the eigenbeam beamforming and the algebraic expression of HRTF. This HRTF synthesis method is implemented in time domain by pre-processing the array received signals. The validity of the proposed algorithm is verified by computer simulations.

Keywords

acoustic signal processing; array signal processing; direction-of-arrival estimation; signal synthesis; time-domain analysis; transfer functions; DOA estimation; HRTF synthesis method; UCA; algebraic expression; array received signals; computer simulations; direction-of-arrival estimation; eigenbeam beamforming; eigenbeam space; head related transfer function; head-mounted electronic sentinel localization systems; impedance sphere; sound wave direction; soundfield decomposition; time-domain analysis; uniform circular array; virtual audition technology; HRTF; Plane wave decomposition; eigenbeam beamforming; virtual audition;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology (ICCT), 2012 IEEE 14th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4673-2100-6

Type

conf

DOI

10.1109/ICCT.2012.6511408

Filename

6511408