{"id":"https://openalex.org/W2085388516","doi":"https://doi.org/10.1155/2008/860360","title":"Postfiltering Using Multichannel Spectral Estimation in Multispeaker Environments","display_name":"Postfiltering Using Multichannel Spectral Estimation in Multispeaker Environments","publication_year":2007,"publication_date":"2007-07-16","ids":{"openalex":"https://openalex.org/W2085388516","doi":"https://doi.org/10.1155/2008/860360","mag":"2085388516"},"language":"en","primary_location":{"id":"doi:10.1155/2008/860360","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2008/860360","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2008/860360","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1110-8657","issn":["1110-8657","1687-0433","1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2008/860360","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5111982753","display_name":"Hai Quang Dam","orcid":null},"institutions":[{"id":"https://openalex.org/I4210159203","display_name":"Western Australian Marine Science Institution","ror":"https://ror.org/05vtzry32","country_code":"AU","type":"facility","lineage":["https://openalex.org/I4210159203"]}],"countries":["AU"],"is_corresponding":true,"raw_author_name":"Hai Quang Dam","raw_affiliation_strings":["Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, 6009, Australia","Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, Australia#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, 6009, Australia","institution_ids":["https://openalex.org/I4210159203"]},{"raw_affiliation_string":"Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, Australia#TAB#","institution_ids":["https://openalex.org/I4210159203"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023874572","display_name":"Sven Nordholm","orcid":"https://orcid.org/0000-0001-8942-5328"},"institutions":[{"id":"https://openalex.org/I4210159203","display_name":"Western Australian Marine Science Institution","ror":"https://ror.org/05vtzry32","country_code":"AU","type":"facility","lineage":["https://openalex.org/I4210159203"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Sven Nordholm","raw_affiliation_strings":["Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, 6009, Australia","Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, Australia#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, 6009, Australia","institution_ids":["https://openalex.org/I4210159203"]},{"raw_affiliation_string":"Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, Australia#TAB#","institution_ids":["https://openalex.org/I4210159203"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032908335","display_name":"Hai Huyen Dam","orcid":"https://orcid.org/0000-0002-9244-7533"},"institutions":[{"id":"https://openalex.org/I4210159203","display_name":"Western Australian Marine Science Institution","ror":"https://ror.org/05vtzry32","country_code":"AU","type":"facility","lineage":["https://openalex.org/I4210159203"]}],"countries":["AU"],"is_corresponding":true,"raw_author_name":"Hai Huyen Dam","raw_affiliation_strings":["Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, 6009, Australia","Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, Australia#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, 6009, Australia","institution_ids":["https://openalex.org/I4210159203"]},{"raw_affiliation_string":"Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, Australia#TAB#","institution_ids":["https://openalex.org/I4210159203"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5012742462","display_name":"Siow Yong Low","orcid":null},"institutions":[{"id":"https://openalex.org/I4210159203","display_name":"Western Australian Marine Science Institution","ror":"https://ror.org/05vtzry32","country_code":"AU","type":"facility","lineage":["https://openalex.org/I4210159203"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Siow Yong Low","raw_affiliation_strings":["Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, 6009, Australia","Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, Australia#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, 6009, Australia","institution_ids":["https://openalex.org/I4210159203"]},{"raw_affiliation_string":"Western Australian Telecommunications Research Institute (WATRI), Crawley, WA, Australia#TAB#","institution_ids":["https://openalex.org/I4210159203"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5032908335","https://openalex.org/A5111982753"],"corresponding_institution_ids":["https://openalex.org/I4210159203"],"apc_list":{"value":1665,"currency":"USD","value_usd":1665},"apc_paid":{"value":1665,"currency":"USD","value_usd":1665},"fwci":0.0,"has_fulltext":true,"cited_by_count":4,"citation_normalized_percentile":{"value":0.12437096,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"2008","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11233","display_name":"Advanced Adaptive Filtering Techniques","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10822","display_name":"Acoustic Wave Phenomena Research","score":0.9980999827384949,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.7614706158638},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7493797540664673},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.537401556968689},{"id":"https://openalex.org/keywords/distortion","display_name":"Distortion (music)","score":0.5079129338264465},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.500683069229126},{"id":"https://openalex.org/keywords/exploit","display_name":"Exploit","score":0.4597066044807434},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.4557357728481293},{"id":"https://openalex.org/keywords/source-separation","display_name":"Source separation","score":0.45030248165130615},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.4403942823410034},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.4241899847984314},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.3754933178424835},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3735222816467285},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.19832906126976013},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.13062238693237305},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.10346534848213196},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.0716201663017273}],"concepts":[{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.7614706158638},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7493797540664673},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.537401556968689},{"id":"https://openalex.org/C126780896","wikidata":"https://www.wikidata.org/wiki/Q899871","display_name":"Distortion (music)","level":4,"score":0.5079129338264465},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.500683069229126},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.4597066044807434},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.4557357728481293},{"id":"https://openalex.org/C2776864781","wikidata":"https://www.wikidata.org/wiki/Q52617913","display_name":"Source separation","level":2,"score":0.45030248165130615},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.4403942823410034},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.4241899847984314},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.3754933178424835},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3735222816467285},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19832906126976013},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.13062238693237305},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.10346534848213196},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0716201663017273},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1155/2008/860360","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2008/860360","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2008/860360","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1110-8657","issn":["1110-8657","1687-0433","1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:e316c61c6b7941938b745f4f2892de89","is_oa":true,"landing_page_url":"https://doaj.org/article/e316c61c6b7941938b745f4f2892de89","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"EURASIP Journal on Advances in Signal Processing, Vol 2008 (2007)","raw_type":"article"},{"id":"pmh:oai:eprints.soton.ac.uk:370675","is_oa":false,"landing_page_url":"https://eprints.soton.ac.uk/370675/","pdf_url":null,"source":{"id":"https://openalex.org/S4306401019","display_name":"ePrints Soton (University of Southampton)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I43439940","host_organization_name":"University of Southampton","host_organization_lineage":["https://openalex.org/I43439940"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"},{"id":"pmh:oai:espace.curtin.edu.au:20.500.11937/3696","is_oa":true,"landing_page_url":"http://hdl.handle.net/20.500.11937/3696","pdf_url":null,"source":{"id":"https://openalex.org/S4306401790","display_name":"eSpace (Curtin University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205640436","host_organization_name":"Curtin University","host_organization_lineage":["https://openalex.org/I205640436"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Journal Article"}],"best_oa_location":{"id":"doi:10.1155/2008/860360","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2008/860360","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2008/860360","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1110-8657","issn":["1110-8657","1687-0433","1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.47999998927116394,"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320310369","display_name":"National ICT Australia","ror":"https://ror.org/03q397159"},{"id":"https://openalex.org/F4320315885","display_name":"Australian Government","ror":"https://ror.org/0314h5y94"},{"id":"https://openalex.org/F4320320987","display_name":"Curtin University of Technology","ror":"https://ror.org/02n415q13"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2085388516.pdf","grobid_xml":"https://content.openalex.org/works/W2085388516.grobid-xml"},"referenced_works_count":20,"referenced_works":["https://openalex.org/W120286663","https://openalex.org/W1515932869","https://openalex.org/W1983821361","https://openalex.org/W2068473847","https://openalex.org/W2099655464","https://openalex.org/W2109370954","https://openalex.org/W2110950799","https://openalex.org/W2112469598","https://openalex.org/W2119242861","https://openalex.org/W2126554103","https://openalex.org/W2128653836","https://openalex.org/W2131935508","https://openalex.org/W2135548266","https://openalex.org/W2136033045","https://openalex.org/W2148965074","https://openalex.org/W2149693148","https://openalex.org/W2151500768","https://openalex.org/W2160955153","https://openalex.org/W2163169136","https://openalex.org/W2172265180"],"related_works":["https://openalex.org/W3207760230","https://openalex.org/W1496222301","https://openalex.org/W1590307681","https://openalex.org/W4312814274","https://openalex.org/W4285370786","https://openalex.org/W2296488620","https://openalex.org/W2358353312","https://openalex.org/W2353836703","https://openalex.org/W41015297","https://openalex.org/W4280645561"],"abstract_inverted_index":{"This":[0],"paper":[1],"investigates":[2],"the":[3,33,36,46,56,69,86,97,115,130],"problem":[4],"of":[5,15,85,129],"enhancing":[6],"a":[7,13,27,59,110,119,126],"single":[8],"desired":[9,47,131],"speech":[10],"source":[11,48],"from":[12,109],"mixture":[14],"signals":[16],"in":[17,68],"multispeaker":[18],"environments.":[19],"A":[20],"beamformer":[21,29,40,117],"structure":[22],"is":[23,41,64],"proposed":[24,65,95,116],"which":[25],"combines":[26],"fixed":[28,37],"with":[30],"postfiltering.":[31],"In":[32,55],"first":[34],"stage,":[35,58],"multiobjective":[38],"optimal":[39],"designed":[42],"to":[43],"spatially":[44],"extract":[45],"by":[49],"suppressing":[50],"all":[51],"other":[52],"undesired":[53],"sources.":[54],"second":[57],"multichannel":[60,90],"power":[61],"spectral":[62,83,91],"estimator":[63],"and":[66,82,103],"incorporated":[67],"postfilter,":[70],"thus":[71],"enabling":[72],"further":[73],"suppression":[74,122],"capability.":[75],"The":[76],"combined":[77],"scheme":[78],"exploits":[79],"both":[80],"spatial":[81],"characteristics":[84],"signals.":[87],"Two":[88],"new":[89],"estimation":[92],"methods":[93],"are":[94],"for":[96],"postfiltering":[98],"using,":[99],"respectively,":[100],"inner":[101],"product":[102],"joint":[104],"diagonalization.":[105],"Evaluations":[106],"using":[107],"recordings":[108],"real-room":[111],"environment":[112],"show":[113],"that":[114],"offers":[118],"good":[120],"interference":[121],"level":[123,128],"whilst":[124],"maintaining":[125],"low-distortion":[127],"source.":[132]},"counts_by_year":[{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":2}],"updated_date":"2026-07-28T07:46:37.118299","created_date":"2016-06-24T00:00:00"}