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- Publisher Website: 10.1007/s11081-008-9060-4
- Scopus: eid_2-s2.0-84883577109
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Article: Beamspace blind signal separation for speech enhancement
Title | Beamspace blind signal separation for speech enhancement |
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Authors | |
Keywords | Beamspace Blind Signal Separation Microphone Arrays Speech Enhancement |
Issue Date | 2009 |
Publisher | Springer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=1389-4420 |
Citation | Optimization And Engineering, 2009, v. 10 n. 2, p. 313-330 How to Cite? |
Abstract | Signal processing methods for speech enhancement are of vital interest for communications equipments. In particular, multichannel algorithms, which perform spatial filtering to separate signals that have overlapping frequency content but different spatial origins, are important for a wide range of applications. Two of the most popular multichannel methods are blind signal separation (BSS) and beamforming. Briefly, (BSS) separates mixed sources by optimizing the statistical independence among the outputs whilst beamforming optimizes the look direction of the desired source(s). However, both methods have separation limitations, in that BSS succumbs to reverberant environments and beamforming is very sensitive to array model mismatch. In this paper, we propose a novel hybrid scheme, called beamspace BSS, which is intended to compensate the aforementioned separation weaknesses by jointly optimizing the spatial selectivity and statistical independence of the sources. We show that beamspace BSS outperforms the separation performance of the conventional sensor space BSS significantly, particularly in reverberant room environments. © 2008 Springer Science+Business Media, LLC. |
Persistent Identifier | http://hdl.handle.net/10722/155914 |
ISSN | 2023 Impact Factor: 2.0 2023 SCImago Journal Rankings: 0.605 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Low, SY | en_US |
dc.contributor.author | Yiu, KFC | en_US |
dc.contributor.author | Nordholm, S | en_US |
dc.date.accessioned | 2012-08-08T08:38:22Z | - |
dc.date.available | 2012-08-08T08:38:22Z | - |
dc.date.issued | 2009 | en_US |
dc.identifier.citation | Optimization And Engineering, 2009, v. 10 n. 2, p. 313-330 | en_US |
dc.identifier.issn | 1389-4420 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/155914 | - |
dc.description.abstract | Signal processing methods for speech enhancement are of vital interest for communications equipments. In particular, multichannel algorithms, which perform spatial filtering to separate signals that have overlapping frequency content but different spatial origins, are important for a wide range of applications. Two of the most popular multichannel methods are blind signal separation (BSS) and beamforming. Briefly, (BSS) separates mixed sources by optimizing the statistical independence among the outputs whilst beamforming optimizes the look direction of the desired source(s). However, both methods have separation limitations, in that BSS succumbs to reverberant environments and beamforming is very sensitive to array model mismatch. In this paper, we propose a novel hybrid scheme, called beamspace BSS, which is intended to compensate the aforementioned separation weaknesses by jointly optimizing the spatial selectivity and statistical independence of the sources. We show that beamspace BSS outperforms the separation performance of the conventional sensor space BSS significantly, particularly in reverberant room environments. © 2008 Springer Science+Business Media, LLC. | en_US |
dc.language | eng | en_US |
dc.publisher | Springer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=1389-4420 | en_US |
dc.relation.ispartof | Optimization and Engineering | en_US |
dc.subject | Beamspace | en_US |
dc.subject | Blind Signal Separation | en_US |
dc.subject | Microphone Arrays | en_US |
dc.subject | Speech Enhancement | en_US |
dc.title | Beamspace blind signal separation for speech enhancement | en_US |
dc.type | Article | en_US |
dc.identifier.email | Yiu, KFC:cedric@hkucc.hku.hk | en_US |
dc.identifier.authority | Yiu, KFC=rp00206 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1007/s11081-008-9060-4 | en_US |
dc.identifier.scopus | eid_2-s2.0-84883577109 | en_US |
dc.identifier.spage | 313 | en_US |
dc.identifier.epage | 330 | en_US |
dc.identifier.isi | WOS:000266497700012 | - |
dc.publisher.place | Netherlands | en_US |
dc.identifier.scopusauthorid | Low, SY=7102636488 | en_US |
dc.identifier.scopusauthorid | Yiu, KFC=24802813000 | en_US |
dc.identifier.scopusauthorid | Nordholm, S=7005690573 | en_US |
dc.identifier.citeulike | 3626979 | - |
dc.identifier.issnl | 1389-4420 | - |