Title :
Fast deconvolution of multichannel systems using regularization
Author :
Kirkeby, Ole ; Nelson, Philip A. ; Hamada, Hareo ; Orduna-Bustamante, Felipe
Author_Institution :
Inst. of Sound & Vibration Res., Southampton Univ., UK
fDate :
3/1/1998 12:00:00 AM
Abstract :
A very fast deconvolution method, which is based on the fast Fourier transform (FFT), can be used to control the outputs from a multichannel plant comprising any number of control sources and error sensors. The result is a matrix of causal finite impulse response filters whose performance is optimized at a large number of discrete frequencies. The paper is particularly aimed at multichannel sound reproduction and more specifically reproducing the sound field from a set of loudspeakers
Keywords :
FIR filters; acoustic field; acoustic filters; deconvolution; fast Fourier transforms; loudspeakers; sound reproduction; FFT; causal finite impulse response filter matrix; control sources; discrete frequencies; error sensors; fast Fourier transform; fast deconvolution method; loudspeakers; multichannel plant; multichannel sound reproduction; multichannel systems; regularization; sound field; Control systems; Deconvolution; Digital filters; Error correction; Fast Fourier transforms; Finite impulse response filter; Frequency; Loudspeakers; Microphones; Sensor systems;
Journal_Title :
Speech and Audio Processing, IEEE Transactions on
