DocumentCode :
698406
Title :
A new approach to multichannel audio signal acquisition and subband processing
Author :
Satue-Villar, Antonio ; Fernandez-Rubio, Juan
Author_Institution :
Escuela Univ. Politec. de Mataro (EUPMT), Univ. Politec. de Cataluna, Mataro, Spain
fYear :
2005
fDate :
4-8 Sept. 2005
Firstpage :
1
Lastpage :
4
Abstract :
This paper presents results obtained when processing a voice signal collected by several microphones using GSC structure with subband processing. The acquisition has been realized in two ways: by means of an audio acquisition card and a microphone array developed for the work and through an specific system (Mark III structure). We have evaluated the results with different subband transforms (in the adaptive branch of GSC), maintaining the microphones number constant and considering all or part of the adaptive coefficients. The aim of the structure is that, in an environment with several speakers talking in front of the array, the output is as close as possible to the signal of one of them (the one placed orthogonally to the array) and that it adapt quickly to possible environment changes. Thus, by means of arithmetic-harmonic sphericity distances computation quantitative results of a speaker recognition system will be defined.
Keywords :
acoustic signal detection; audio signal processing; microphone arrays; speaker recognition; transforms; GSC structure; Mark III structure; arithmetic-harmonic sphericity distance computation; audio acquisition card; microphone array; multichannel audio signal acquisition; speaker recognition system; subband processing; subband transforms; voice signal; Array signal processing; Arrays; Microphones; Speaker recognition; Speech; Wavelet transforms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing Conference, 2005 13th European
Conference_Location :
Antalya
Print_ISBN :
978-160-4238-21-1
Type :
conf
Filename :
7077991
Link To Document :
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