DocumentCode :
2271675
Title :
Subband Method for Multichannel Least Squares Equalization of Room Transfer Functions
Author :
Gaubitch, Nikolay D. ; Thomas, Mark R P ; Naylor, Patrick A.
Author_Institution :
Imperial College London, Exhibition Road, SW7 2AZ, London, UK. ndg@imperial.ac.uk
fYear :
2007
fDate :
21-24 Oct. 2007
Firstpage :
14
Lastpage :
17
Abstract :
Equalization of room transfer functions (RTFs) is important in many speech and audio processing applications. It is a challenging problem because RTFs are several thousand taps long and non-minimum phase and in practice only approximate measurements of the RTFs are available. In this paper, we present a subband multichannel least squares method for equalization of RTFs which is computationally efficient and less sensitive to inaccuracies in the measured RTFs compared to its fullband counterpart. Experimental results using simulated impulse responses demonstrate the performance of the algorithm.
Keywords :
Acoustic applications; Acoustic signal processing; Conferences; Delay estimation; Least squares approximation; Least squares methods; Microphone arrays; Signal design; Speech processing; Transfer functions;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applications of Signal Processing to Audio and Acoustics, 2007 IEEE Workshop on
Conference_Location :
New Paltz, NY, USA
Print_ISBN :
978-1-4244-1620-2
Electronic_ISBN :
978-1-4244-1619-6
Type :
conf
DOI :
10.1109/ASPAA.2007.4392981
Filename :
4392981
Link To Document :
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