Iterative algorithms for multichannel equalization in sound reproduction systems

Author

Guillaume, M. ; Grenier, Y. ; Richard, G.

Author_Institution

Ecole Nat. Superieure des Telecommun., Paris, France

Volume

3

fYear

2005

fDate

18-23 March 2005

Abstract

A fast iterative algorithm, with computation based on the fast Fourier transform (FFT), is presented. It can be used to control a sound field at several control points with a loudspeaker array from multiple reference signals. It designs an equalizer able to invert long FIR filters and which achieves better performance than traditional FFT-based deconvolution methods with an equal number of coefficients in the inverse filters.

Keywords

FIR filters; acoustic field; array signal processing; audio signal processing; deconvolution; equalisers; fast Fourier transforms; iterative methods; loudspeakers; sound reproduction; FFT; deconvolution; fast Fourier transform; fast iterative algorithm; inverse filters; long FIR filters; loudspeaker array; multichannel equalization; multiple reference signals; sound field; sound reproduction systems; Convolution; Deconvolution; Equalizers; Extrapolation; Fast Fourier transforms; Finite impulse response filter; Iterative algorithms; Loudspeakers; MIMO; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8874-7

Type

conf

DOI

10.1109/ICASSP.2005.1415698

Filename

1415698