A combined approach of array processing and independent component analysis for blind separation of acoustic signals

Author

Asano, Futoshi ; Ikeda, Shiro ; Ogawa, Michiaki ; Asoh, Hideki ; Kitawaki, Nobuhiko

Author_Institution

Electrotechnical Lab., Tokyo, Japan

Volume

5

fYear

2001

fDate

2001

Firstpage

2729

Abstract

Two array signal processing techniques are combined with independent component analysis to enhance the performance of blind separation of acoustic signals in a reflective environment such as rooms. The first technique is the subspace method which reduces the effect of room reflection. The second technique is a method of solving the permutation, in which the coherency of the mixing matrix in adjacent frequencies is utilized

Keywords

acoustic signal processing; array signal processing; echo suppression; matrix algebra; statistical analysis; acoustic signals; adjacent frequencies; array signal processing; blind separation; coherency; independent component analysis; mixing matrix; performance; permutation solving; reflective environment; room reflection reduction; subspace method; Acoustic arrays; Acoustic noise; Acoustic reflection; Filters; Frequency; Independent component analysis; Microphones; Noise reduction; Signal processing; Source separation;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on

Conference_Location

Salt Lake City, UT

ISSN

1520-6149

Print_ISBN

0-7803-7041-4

Type

conf

DOI

10.1109/ICASSP.2001.940210

Filename

940210