A New Post-filter Algorithm Combined with Two-step Adaptive Beamformer
The optimal microphone array, in the sense of minimum mean square errors (MMSE), includes two processing blocks: the minimum variance distortionless response (MVDR) beamformer and the single-channel Wiener filter, which acts as post-filter. In this paper, we propose a new post-filter algorithm based...
Gespeichert in:
| Veröffentlicht in: | Circuits, systems, and signal processing systems, and signal processing, 2011-06, Vol.30 (3), p.483-500 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 500 |
|---|---|
| container_issue | 3 |
| container_start_page | 483 |
| container_title | Circuits, systems, and signal processing |
| container_volume | 30 |
| creator | Saric, Zoran M. Simic, Dragan P. Jovicic, Slobodan T. |
| description | The optimal microphone array, in the sense of minimum mean square errors (MMSE), includes two processing blocks: the minimum variance distortionless response (MVDR) beamformer and the single-channel Wiener filter, which acts as post-filter. In this paper, we propose a new post-filter algorithm based on assumptions that both the noise power attenuation factor (NPAF) and signal power attenuation factor (SPAF) are time invariant in the reverberant room. The algorithm recursively estimates both factors from available measurements and uses them in estimation of the post-filter parameters. Additionally, to overcome the problem of the poor performance of the MVDR beamformer in reverberant conditions, we propose the usage of the two-step (TS) MVDR algorithm. This algorithm improves the robustness of the beamformer and its ability to suppress the interferences using an estimate of the desired speaker transfer function. Although TS MVDR beamformer and proposed post-filter can work separately, or combined with other algorithms, the best performance is obtained when they work together. The performance of the proposed combination of new post-filter algorithm and TS MVDR beamformer is tested in a simulated reverberant room and compared with similar algorithms, which gave rather good results. |
| doi_str_mv | 10.1007/s00034-010-9233-1 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_907950185</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2402474391</sourcerecordid><originalsourceid>FETCH-LOGICAL-c347t-674633ba94abdf483f8cdf9e8cf871e5115d4ce9f229968f26a93d4e34ba98843</originalsourceid><addsrcrecordid>eNp1kM9LwzAUgIMoOKd_gLfgxVM0v9okxzmcCqIeJngLXfsyO9qmJp3D_96MCoLg6fHg-x6PD6FzRq8Ypeo6UkqFJJRRYrgQhB2gCcsEI5lW-hBNKFeaUM3ejtFJjBtKmZGGT9Bihp9gh198HIirmwECnjVrH-rhvcVz367qDiq8Syte7jyJA_R4VhX9UH8CvoGidT60EE7RkSuaCGc_c4peF7fL-T15fL57mM8eSSmkGkiuZC7EqjCyWFVOauF0WTkDunRaMcgYyypZgnGcG5Nrx_PCiEqCkMnRWoopuhzv9sF_bCEOtq1jCU1TdOC30RqqTEaZzhJ58Yfc-G3o0nM2FaFSKK4TxEaoDD7GAM72oW6L8GUZtfuuduxqU1e772pZcvjoxMR2awi_h_-XvgE1LHl0</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>878043728</pqid></control><display><type>article</type><title>A New Post-filter Algorithm Combined with Two-step Adaptive Beamformer</title><source>SpringerLink Journals</source><creator>Saric, Zoran M. ; Simic, Dragan P. ; Jovicic, Slobodan T.</creator><creatorcontrib>Saric, Zoran M. ; Simic, Dragan P. ; Jovicic, Slobodan T.</creatorcontrib><description>The optimal microphone array, in the sense of minimum mean square errors (MMSE), includes two processing blocks: the minimum variance distortionless response (MVDR) beamformer and the single-channel Wiener filter, which acts as post-filter. In this paper, we propose a new post-filter algorithm based on assumptions that both the noise power attenuation factor (NPAF) and signal power attenuation factor (SPAF) are time invariant in the reverberant room. The algorithm recursively estimates both factors from available measurements and uses them in estimation of the post-filter parameters. Additionally, to overcome the problem of the poor performance of the MVDR beamformer in reverberant conditions, we propose the usage of the two-step (TS) MVDR algorithm. This algorithm improves the robustness of the beamformer and its ability to suppress the interferences using an estimate of the desired speaker transfer function. Although TS MVDR beamformer and proposed post-filter can work separately, or combined with other algorithms, the best performance is obtained when they work together. The performance of the proposed combination of new post-filter algorithm and TS MVDR beamformer is tested in a simulated reverberant room and compared with similar algorithms, which gave rather good results.</description><identifier>ISSN: 0278-081X</identifier><identifier>EISSN: 1531-5878</identifier><identifier>DOI: 10.1007/s00034-010-9233-1</identifier><language>eng</language><publisher>Boston: SP Birkhäuser Verlag Boston</publisher><subject>Algorithms ; Arrays ; Attenuation ; Beamforming ; Circuits and Systems ; Computer simulation ; Electrical Engineering ; Electronics and Microelectronics ; Engineering ; Estimates ; Instrumentation ; Invariants ; Least mean squares algorithm ; Mean square errors ; Microphones ; Signal processing ; Signal,Image and Speech Processing</subject><ispartof>Circuits, systems, and signal processing, 2011-06, Vol.30 (3), p.483-500</ispartof><rights>Springer Science+Business Media, LLC 2010</rights><rights>Springer Science+Business Media, LLC 2011</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c347t-674633ba94abdf483f8cdf9e8cf871e5115d4ce9f229968f26a93d4e34ba98843</citedby><cites>FETCH-LOGICAL-c347t-674633ba94abdf483f8cdf9e8cf871e5115d4ce9f229968f26a93d4e34ba98843</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00034-010-9233-1$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00034-010-9233-1$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Saric, Zoran M.</creatorcontrib><creatorcontrib>Simic, Dragan P.</creatorcontrib><creatorcontrib>Jovicic, Slobodan T.</creatorcontrib><title>A New Post-filter Algorithm Combined with Two-step Adaptive Beamformer</title><title>Circuits, systems, and signal processing</title><addtitle>Circuits Syst Signal Process</addtitle><description>The optimal microphone array, in the sense of minimum mean square errors (MMSE), includes two processing blocks: the minimum variance distortionless response (MVDR) beamformer and the single-channel Wiener filter, which acts as post-filter. In this paper, we propose a new post-filter algorithm based on assumptions that both the noise power attenuation factor (NPAF) and signal power attenuation factor (SPAF) are time invariant in the reverberant room. The algorithm recursively estimates both factors from available measurements and uses them in estimation of the post-filter parameters. Additionally, to overcome the problem of the poor performance of the MVDR beamformer in reverberant conditions, we propose the usage of the two-step (TS) MVDR algorithm. This algorithm improves the robustness of the beamformer and its ability to suppress the interferences using an estimate of the desired speaker transfer function. Although TS MVDR beamformer and proposed post-filter can work separately, or combined with other algorithms, the best performance is obtained when they work together. The performance of the proposed combination of new post-filter algorithm and TS MVDR beamformer is tested in a simulated reverberant room and compared with similar algorithms, which gave rather good results.</description><subject>Algorithms</subject><subject>Arrays</subject><subject>Attenuation</subject><subject>Beamforming</subject><subject>Circuits and Systems</subject><subject>Computer simulation</subject><subject>Electrical Engineering</subject><subject>Electronics and Microelectronics</subject><subject>Engineering</subject><subject>Estimates</subject><subject>Instrumentation</subject><subject>Invariants</subject><subject>Least mean squares algorithm</subject><subject>Mean square errors</subject><subject>Microphones</subject><subject>Signal processing</subject><subject>Signal,Image and Speech Processing</subject><issn>0278-081X</issn><issn>1531-5878</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kM9LwzAUgIMoOKd_gLfgxVM0v9okxzmcCqIeJngLXfsyO9qmJp3D_96MCoLg6fHg-x6PD6FzRq8Ypeo6UkqFJJRRYrgQhB2gCcsEI5lW-hBNKFeaUM3ejtFJjBtKmZGGT9Bihp9gh198HIirmwECnjVrH-rhvcVz367qDiq8Syte7jyJA_R4VhX9UH8CvoGidT60EE7RkSuaCGc_c4peF7fL-T15fL57mM8eSSmkGkiuZC7EqjCyWFVOauF0WTkDunRaMcgYyypZgnGcG5Nrx_PCiEqCkMnRWoopuhzv9sF_bCEOtq1jCU1TdOC30RqqTEaZzhJ58Yfc-G3o0nM2FaFSKK4TxEaoDD7GAM72oW6L8GUZtfuuduxqU1e772pZcvjoxMR2awi_h_-XvgE1LHl0</recordid><startdate>20110601</startdate><enddate>20110601</enddate><creator>Saric, Zoran M.</creator><creator>Simic, Dragan P.</creator><creator>Jovicic, Slobodan T.</creator><general>SP Birkhäuser Verlag Boston</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SC</scope><scope>7SP</scope><scope>7XB</scope><scope>88I</scope><scope>8AL</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JQ2</scope><scope>K7-</scope><scope>L6V</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M0N</scope><scope>M2P</scope><scope>M7S</scope><scope>P5Z</scope><scope>P62</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PKEHL</scope><scope>PQEST</scope><scope>PQGLB</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>S0W</scope></search><sort><creationdate>20110601</creationdate><title>A New Post-filter Algorithm Combined with Two-step Adaptive Beamformer</title><author>Saric, Zoran M. ; Simic, Dragan P. ; Jovicic, Slobodan T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c347t-674633ba94abdf483f8cdf9e8cf871e5115d4ce9f229968f26a93d4e34ba98843</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Algorithms</topic><topic>Arrays</topic><topic>Attenuation</topic><topic>Beamforming</topic><topic>Circuits and Systems</topic><topic>Computer simulation</topic><topic>Electrical Engineering</topic><topic>Electronics and Microelectronics</topic><topic>Engineering</topic><topic>Estimates</topic><topic>Instrumentation</topic><topic>Invariants</topic><topic>Least mean squares algorithm</topic><topic>Mean square errors</topic><topic>Microphones</topic><topic>Signal processing</topic><topic>Signal,Image and Speech Processing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saric, Zoran M.</creatorcontrib><creatorcontrib>Simic, Dragan P.</creatorcontrib><creatorcontrib>Jovicic, Slobodan T.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Computing Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Computer Science Collection</collection><collection>Computer Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Computing Database</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central (New)</collection><collection>ProQuest One Academic (New)</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Applied & Life Sciences</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><collection>DELNET Engineering & Technology Collection</collection><jtitle>Circuits, systems, and signal processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saric, Zoran M.</au><au>Simic, Dragan P.</au><au>Jovicic, Slobodan T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A New Post-filter Algorithm Combined with Two-step Adaptive Beamformer</atitle><jtitle>Circuits, systems, and signal processing</jtitle><stitle>Circuits Syst Signal Process</stitle><date>2011-06-01</date><risdate>2011</risdate><volume>30</volume><issue>3</issue><spage>483</spage><epage>500</epage><pages>483-500</pages><issn>0278-081X</issn><eissn>1531-5878</eissn><abstract>The optimal microphone array, in the sense of minimum mean square errors (MMSE), includes two processing blocks: the minimum variance distortionless response (MVDR) beamformer and the single-channel Wiener filter, which acts as post-filter. In this paper, we propose a new post-filter algorithm based on assumptions that both the noise power attenuation factor (NPAF) and signal power attenuation factor (SPAF) are time invariant in the reverberant room. The algorithm recursively estimates both factors from available measurements and uses them in estimation of the post-filter parameters. Additionally, to overcome the problem of the poor performance of the MVDR beamformer in reverberant conditions, we propose the usage of the two-step (TS) MVDR algorithm. This algorithm improves the robustness of the beamformer and its ability to suppress the interferences using an estimate of the desired speaker transfer function. Although TS MVDR beamformer and proposed post-filter can work separately, or combined with other algorithms, the best performance is obtained when they work together. The performance of the proposed combination of new post-filter algorithm and TS MVDR beamformer is tested in a simulated reverberant room and compared with similar algorithms, which gave rather good results.</abstract><cop>Boston</cop><pub>SP Birkhäuser Verlag Boston</pub><doi>10.1007/s00034-010-9233-1</doi><tpages>18</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0278-081X |
| ispartof | Circuits, systems, and signal processing, 2011-06, Vol.30 (3), p.483-500 |
| issn | 0278-081X 1531-5878 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_907950185 |
| source | SpringerLink Journals |
| subjects | Algorithms Arrays Attenuation Beamforming Circuits and Systems Computer simulation Electrical Engineering Electronics and Microelectronics Engineering Estimates Instrumentation Invariants Least mean squares algorithm Mean square errors Microphones Signal processing Signal,Image and Speech Processing |
| title | A New Post-filter Algorithm Combined with Two-step Adaptive Beamformer |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-16T10%3A23%3A45IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20New%20Post-filter%20Algorithm%20Combined%20with%20Two-step%20Adaptive%20Beamformer&rft.jtitle=Circuits,%20systems,%20and%20signal%20processing&rft.au=Saric,%20Zoran%20M.&rft.date=2011-06-01&rft.volume=30&rft.issue=3&rft.spage=483&rft.epage=500&rft.pages=483-500&rft.issn=0278-081X&rft.eissn=1531-5878&rft_id=info:doi/10.1007/s00034-010-9233-1&rft_dat=%3Cproquest_cross%3E2402474391%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=878043728&rft_id=info:pmid/&rfr_iscdi=true |