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Overdetermined Blind Separation for Real Convolutive Mixtures of Speech Based on Multistage ICA Using Subarray Processing

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dc.contributor.author Tsuyoki Nishikawa en
dc.contributor.author Hiroshi Abe en
dc.contributor.author Hiroshi Saruwatari en
dc.contributor.author Kiyohiro Shikano en
dc.contributor.author Atsunobu Kaminuma en
dc.date.accessioned 2012-07-05T07:00:42Z en
dc.date.available 2012-07-05T07:00:42Z en
dc.date.issued 2004-08 en
dc.identifier.issn 0916-8508 en
dc.identifier.uri http://hdl.handle.net/10061/7798 en
dc.description.abstract We propose a new algorithm for overdetermined blind source separation (BSS) based on multistage independent component analysis (MSICA). To improve the separation performance, we have proposed MSICA in which frequency-domain ICA and time-domain ICA are cascaded. In the original MSICA, the specific mixing model, where the number of microphones is equal to that of sources, was assumed. However, additional microphones are required to achieve an improved separation performance under reverberant environments. This leads to alternative problems, e. g., a complication of the permutation problem. In order to solve them, we propose a new extended MSICA using subarray processing, where the number of microphones and that of sources are set to be the same in every subarray. The experimental results obtained under the real environment reveal that the separation performance of the proposed MSICA is improved as the number of microphones is increased. en
dc.language.iso en en
dc.publisher 電子情報通信学会 ja
dc.rights Copyright (C) 2004 電子情報通信学会. ja
dc.subject microphone array en
dc.subject blind source separation en
dc.subject independent component analysis en
dc.subject subarray processing en
dc.subject convolutive mixture en
dc.title Overdetermined Blind Separation for Real Convolutive Mixtures of Speech Based on Multistage ICA Using Subarray Processing en
dc.type.nii Journal Article en
dc.textversion publisher en
dc.identifier.ncid AA10826239 en
dc.identifier.jtitle IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences en
dc.identifier.volume E87-A en
dc.identifier.issue 8 en
dc.identifier.spage 1924 en
dc.identifier.epage 1932 en
dc.identifier.url https://search.ieice.org/ en
dc.relation.isIdenticalTo http://ci.nii.ac.jp/naid/110003213122 en


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