Headphone-Based Reproduction of 3D Auditory Scenes Captured by Spherical/Hemispherical Microphone Arrays

Author

Li, Zhiyun ; Duraiswami, Ramani

Author_Institution

Lab. of Perceptual Interfaces & Reality, Maryland Univ., College Park, MD

Volume

5

fYear

2006

fDate

14-19 May 2006

Abstract

We propose a method to reproduce 3D auditory scenes captured by spherical microphone arrays over headphones. This algorithm employs expansions of the captured sound and the head related transfer function over the sphere and uses the orthonormality of the spherical harmonics. Using a spherical microphone array, we first record the 3D auditory scene, then the recordings are spatially filtered and reproduced through headphones in the orthogonal beam-space of the head related transfer functions (HRTFs). We use the KEMAR HRTF measurements to verify our algorithm

Keywords

array signal processing; audio signal processing; harmonic analysis; headphones; microphone arrays; spatial filters; 3D auditory scenes; head related transfer function; headphone-based reproduction; hemispherical microphone arrays; orthogonal beam-space; spatial filter; spherical harmonics; Audio recording; Audio systems; Educational institutions; Headphones; Laboratories; Layout; Magnetic heads; Microphone arrays; Power harmonic filters; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on

Conference_Location

Toulouse

ISSN

1520-6149

Print_ISBN

1-4244-0469-X

Type

conf

DOI

10.1109/ICASSP.2006.1661281

Filename

1661281