Title :
Sound source localization in spatially colored noise using a hierarchical Bayesian model
Author :
Asano, Futoshi ; Asoh, Hideki ; Nakadai, Kazuhiro
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol. (AIST), Tsukuba, Japan
Abstract :
In this paper, source localization in spatially colored noise is addressed. The covariance of colored noise is estimated using a hierarchical model in the joint Bayesian estimation. The results of the experiment show that the spatial resolution was improved compared with the approach without hierarchical modeling.
Keywords :
Bayes methods; acoustic signal processing; audio signal processing; covariance matrices; colored noise covariance; hierarchical Bayesian model; hierarchical model; joint Bayesian estimation; sound source localization; spatial resolution; spatially colored noise; Bayesian methods; Colored noise; Estimation; Joints; Multiple signal classification; Vectors; Bayesian estimation; hierarchical model; source localization; spatially colored noise;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2012 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4673-0045-2
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2012.6287850
