Time-Reversal Approach to the Stereophonic Acoustic Echo Cancellation Problem
Stereophonic acoustic echo cancellation (SAEC) plays an important role in delivering realistic teleconferencing experience. The fundamental problem of SAEC system is that stereophonic channels are linearly related and this results in slow convergence of the adaptive filters. In this paper, we presen...
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| Veröffentlicht in: | IEEE transactions on audio, speech, and language processing speech, and language processing, 2011-02, Vol.19 (2), p.385-395 |
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| creator | Dinh-Quy Nguyen Woon-Seng Gan Khong, Andy W H |
| description | Stereophonic acoustic echo cancellation (SAEC) plays an important role in delivering realistic teleconferencing experience. The fundamental problem of SAEC system is that stereophonic channels are linearly related and this results in slow convergence of the adaptive filters. In this paper, we present a novel algorithm by employing a selective time-reversal block to solve the SAEC problem which results in a significant increase in the convergence performance of adaptive filters such that the stereophonic image as well as quality are preserved. The proposed algorithm employs time-reversal operation on selective blocks of input data samples for one of the two channels to decorrelate stereophonic channels in the SAEC system. To achieve good stereophonic perception, time-reversal operation is only applied to the selective blocks whose magnitudes fall below a pre-determined threshold. Theoretical and numerical simulation results are also studied and investigated to show that the proposed algorithm achieves faster convergence in terms of normalized misalignment and better stereophonic perception with less audio distortion compared to the well-known nonlinear transformation algorithm for the SAEC system. |
| doi_str_mv | 10.1109/TASL.2010.2048941 |
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The fundamental problem of SAEC system is that stereophonic channels are linearly related and this results in slow convergence of the adaptive filters. In this paper, we present a novel algorithm by employing a selective time-reversal block to solve the SAEC problem which results in a significant increase in the convergence performance of adaptive filters such that the stereophonic image as well as quality are preserved. The proposed algorithm employs time-reversal operation on selective blocks of input data samples for one of the two channels to decorrelate stereophonic channels in the SAEC system. To achieve good stereophonic perception, time-reversal operation is only applied to the selective blocks whose magnitudes fall below a pre-determined threshold. 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(IEEE) Feb 2011</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c355t-8a7a145e5958a032dcc7665df4042c7f8c9ac9914d5e7d3fbf7858e8b046dab63</citedby><cites>FETCH-LOGICAL-c355t-8a7a145e5958a032dcc7665df4042c7f8c9ac9914d5e7d3fbf7858e8b046dab63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5453043$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5453043$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23825823$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Dinh-Quy Nguyen</creatorcontrib><creatorcontrib>Woon-Seng Gan</creatorcontrib><creatorcontrib>Khong, Andy W H</creatorcontrib><title>Time-Reversal Approach to the Stereophonic Acoustic Echo Cancellation Problem</title><title>IEEE transactions on audio, speech, and language processing</title><addtitle>TASL</addtitle><description>Stereophonic acoustic echo cancellation (SAEC) plays an important role in delivering realistic teleconferencing experience. The fundamental problem of SAEC system is that stereophonic channels are linearly related and this results in slow convergence of the adaptive filters. In this paper, we present a novel algorithm by employing a selective time-reversal block to solve the SAEC problem which results in a significant increase in the convergence performance of adaptive filters such that the stereophonic image as well as quality are preserved. The proposed algorithm employs time-reversal operation on selective blocks of input data samples for one of the two channels to decorrelate stereophonic channels in the SAEC system. To achieve good stereophonic perception, time-reversal operation is only applied to the selective blocks whose magnitudes fall below a pre-determined threshold. Theoretical and numerical simulation results are also studied and investigated to show that the proposed algorithm achieves faster convergence in terms of normalized misalignment and better stereophonic perception with less audio distortion compared to the well-known nonlinear transformation algorithm for the SAEC system.</description><subject>Adaptive filters</subject><subject>Algorithms</subject><subject>Applied sciences</subject><subject>Blocking</subject><subject>Channels</subject><subject>Convergence</subject><subject>Decorrelation</subject><subject>Decorrelation techniques</subject><subject>Detection, estimation, filtering, equalization, prediction</subject><subject>Digital signal processing</subject><subject>Echo cancellers</subject><subject>Exact sciences and technology</subject><subject>Gallium nitride</subject><subject>Information, signal and communications theory</subject><subject>Laboratories</subject><subject>Miscellaneous</subject><subject>Noise shaping</subject><subject>nonlinear transformation</subject><subject>Perception</subject><subject>Signal and communications theory</subject><subject>Signal processing</subject><subject>Signal processing algorithms</subject><subject>Signal, noise</subject><subject>stereophonic acoustic echo cancellation (SAEC)</subject><subject>Stereophonics</subject><subject>Studies</subject><subject>Telecommunications and information theory</subject><subject>Teleconferencing</subject><subject>time-reversal</subject><issn>1558-7916</issn><issn>2329-9290</issn><issn>1558-7924</issn><issn>2329-9304</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkU1Lw0AQhoMoWKs_QLwERDyl7meyeyylfkBFsfW8bDYTkpJk424q-O_d2NKDp5lhnxleno2ia4xmGCP5sJmvVzOCwkgQE5Lhk2iCORdJJgk7PfY4PY8uvN8ixGjK8CR63dQtJB_wDc7rJp73vbPaVPFg46GCeD2AA9tXtqtNPDd254fQLE1l44XuDDSNHmrbxe_O5g20l9FZqRsPV4c6jT4fl5vFc7J6e3pZzFeJoZwPidCZxowDl1xoRElhTJamvCgZYsRkpTBSGykxKzhkBS3zMhNcgMgRSwudp3Qa3e_vhrRfO_CDamv_l6aDkFEJirEQXMpA3v4jt3bnuhBOYSRQMMLoSOE9ZZz13kGpele32v0ESI1-1ehXjX7VwW_YuTtc1t7opnTBR-2Pi4QKwgWhgbvZczUAHJ854zT8Af0FGTGCxQ</recordid><startdate>20110201</startdate><enddate>20110201</enddate><creator>Dinh-Quy Nguyen</creator><creator>Woon-Seng Gan</creator><creator>Khong, Andy W H</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20110201</creationdate><title>Time-Reversal Approach to the Stereophonic Acoustic Echo Cancellation Problem</title><author>Dinh-Quy Nguyen ; Woon-Seng Gan ; Khong, Andy W H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c355t-8a7a145e5958a032dcc7665df4042c7f8c9ac9914d5e7d3fbf7858e8b046dab63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Adaptive filters</topic><topic>Algorithms</topic><topic>Applied sciences</topic><topic>Blocking</topic><topic>Channels</topic><topic>Convergence</topic><topic>Decorrelation</topic><topic>Decorrelation techniques</topic><topic>Detection, estimation, filtering, equalization, prediction</topic><topic>Digital signal processing</topic><topic>Echo cancellers</topic><topic>Exact sciences and technology</topic><topic>Gallium nitride</topic><topic>Information, signal and communications theory</topic><topic>Laboratories</topic><topic>Miscellaneous</topic><topic>Noise shaping</topic><topic>nonlinear transformation</topic><topic>Perception</topic><topic>Signal and communications theory</topic><topic>Signal processing</topic><topic>Signal processing algorithms</topic><topic>Signal, noise</topic><topic>stereophonic acoustic echo cancellation (SAEC)</topic><topic>Stereophonics</topic><topic>Studies</topic><topic>Telecommunications and information theory</topic><topic>Teleconferencing</topic><topic>time-reversal</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dinh-Quy Nguyen</creatorcontrib><creatorcontrib>Woon-Seng Gan</creatorcontrib><creatorcontrib>Khong, Andy W H</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science 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><jtitle>IEEE transactions on audio, speech, and language processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Dinh-Quy Nguyen</au><au>Woon-Seng Gan</au><au>Khong, Andy W H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Time-Reversal Approach to the Stereophonic Acoustic Echo Cancellation Problem</atitle><jtitle>IEEE transactions on audio, speech, and language processing</jtitle><stitle>TASL</stitle><date>2011-02-01</date><risdate>2011</risdate><volume>19</volume><issue>2</issue><spage>385</spage><epage>395</epage><pages>385-395</pages><issn>1558-7916</issn><issn>2329-9290</issn><eissn>1558-7924</eissn><eissn>2329-9304</eissn><coden>ITASD8</coden><abstract>Stereophonic acoustic echo cancellation (SAEC) plays an important role in delivering realistic teleconferencing experience. The fundamental problem of SAEC system is that stereophonic channels are linearly related and this results in slow convergence of the adaptive filters. In this paper, we present a novel algorithm by employing a selective time-reversal block to solve the SAEC problem which results in a significant increase in the convergence performance of adaptive filters such that the stereophonic image as well as quality are preserved. The proposed algorithm employs time-reversal operation on selective blocks of input data samples for one of the two channels to decorrelate stereophonic channels in the SAEC system. To achieve good stereophonic perception, time-reversal operation is only applied to the selective blocks whose magnitudes fall below a pre-determined threshold. Theoretical and numerical simulation results are also studied and investigated to show that the proposed algorithm achieves faster convergence in terms of normalized misalignment and better stereophonic perception with less audio distortion compared to the well-known nonlinear transformation algorithm for the SAEC system.</abstract><cop>Piscataway, NJ</cop><pub>IEEE</pub><doi>10.1109/TASL.2010.2048941</doi><tpages>11</tpages></addata></record> |
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| subjects | Adaptive filters Algorithms Applied sciences Blocking Channels Convergence Decorrelation Decorrelation techniques Detection, estimation, filtering, equalization, prediction Digital signal processing Echo cancellers Exact sciences and technology Gallium nitride Information, signal and communications theory Laboratories Miscellaneous Noise shaping nonlinear transformation Perception Signal and communications theory Signal processing Signal processing algorithms Signal, noise stereophonic acoustic echo cancellation (SAEC) Stereophonics Studies Telecommunications and information theory Teleconferencing time-reversal |
| title | Time-Reversal Approach to the Stereophonic Acoustic Echo Cancellation Problem |
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