{"id":"https://openalex.org/W3139285504","doi":"https://doi.org/10.1109/access.2021.3065775","title":"Singular Spectrum Analysis for Source Separation in Drone-Based Audio Recording","display_name":"Singular Spectrum Analysis for Source Separation in Drone-Based Audio Recording","publication_year":2021,"publication_date":"2021-01-01","ids":{"openalex":"https://openalex.org/W3139285504","doi":"https://doi.org/10.1109/access.2021.3065775","mag":"3139285504"},"language":"en","primary_location":{"id":"doi:10.1109/access.2021.3065775","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3065775","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09376888.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09376888.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5073796039","display_name":"Francisco Garc\u00eda Encinas","orcid":"https://orcid.org/0000-0001-9108-8957"},"institutions":[{"id":"https://openalex.org/I184999862","display_name":"Universidad de Salamanca","ror":"https://ror.org/02f40zc51","country_code":"ES","type":"education","lineage":["https://openalex.org/I184999862"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Francisco Garcia Encinas","raw_affiliation_strings":["Expert Systems and Applications Laboratory (ESALAB), Faculty of Science, University of Salamanca, Salamanca, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Expert Systems and Applications Laboratory (ESALAB), Faculty of Science, University of Salamanca, Salamanca, Spain","institution_ids":["https://openalex.org/I184999862"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087186391","display_name":"Lu\u00eds Augusto Silva","orcid":"https://orcid.org/0000-0002-9981-4586"},"institutions":[{"id":"https://openalex.org/I184999862","display_name":"Universidad de Salamanca","ror":"https://ror.org/02f40zc51","country_code":"ES","type":"education","lineage":["https://openalex.org/I184999862"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Luis Augusto Silva","raw_affiliation_strings":["Expert Systems and Applications Laboratory (ESALAB), Faculty of Science, University of Salamanca, Salamanca, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Expert Systems and Applications Laboratory (ESALAB), Faculty of Science, University of Salamanca, Salamanca, Spain","institution_ids":["https://openalex.org/I184999862"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026815300","display_name":"Andr\u00e9 Sales Mendes","orcid":"https://orcid.org/0000-0003-0976-2784"},"institutions":[{"id":"https://openalex.org/I184999862","display_name":"Universidad de Salamanca","ror":"https://ror.org/02f40zc51","country_code":"ES","type":"education","lineage":["https://openalex.org/I184999862"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Andre Sales Mendes","raw_affiliation_strings":["Expert Systems and Applications Laboratory (ESALAB), Faculty of Science, University of Salamanca, Salamanca, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Expert Systems and Applications Laboratory (ESALAB), Faculty of Science, University of Salamanca, Salamanca, Spain","institution_ids":["https://openalex.org/I184999862"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035840336","display_name":"Gabriel Villarrubia Gonz\u00e1lez","orcid":"https://orcid.org/0000-0002-6536-2251"},"institutions":[{"id":"https://openalex.org/I184999862","display_name":"Universidad de Salamanca","ror":"https://ror.org/02f40zc51","country_code":"ES","type":"education","lineage":["https://openalex.org/I184999862"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Gabriel Villarrubia Gonzalez","raw_affiliation_strings":["Expert Systems and Applications Laboratory (ESALAB), Faculty of Science, University of Salamanca, Salamanca, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Expert Systems and Applications Laboratory (ESALAB), Faculty of Science, University of Salamanca, Salamanca, Spain","institution_ids":["https://openalex.org/I184999862"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038022273","display_name":"Valderi Reis Quietinho Leithardt","orcid":"https://orcid.org/0000-0003-0446-9271"},"institutions":[{"id":"https://openalex.org/I4210165014","display_name":"Polytechnic Institute of Portalegre","ror":"https://ror.org/05vnksv67","country_code":"PT","type":"education","lineage":["https://openalex.org/I4210165014"]},{"id":"https://openalex.org/I88596544","display_name":"Universidade Lus\u00f3fona","ror":"https://ror.org/05xxfer42","country_code":"PT","type":"education","lineage":["https://openalex.org/I88596544"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Valderi Reis Quietinho Leithardt","raw_affiliation_strings":["COPELABS, Universidade Lus\u00f3fona de Humanidades e Tecnologias, Campo Grande 376, Lisboa, Portugal","VALORIZA, Research Center for Endogenous Resources Valorization, Instituto Polit\u00e9cnico de Portalegre, Portalegre, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"COPELABS, Universidade Lus\u00f3fona de Humanidades e Tecnologias, Campo Grande 376, Lisboa, Portugal","institution_ids":["https://openalex.org/I88596544"]},{"raw_affiliation_string":"VALORIZA, Research Center for Endogenous Resources Valorization, Instituto Polit\u00e9cnico de Portalegre, Portalegre, Portugal","institution_ids":["https://openalex.org/I4210165014"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5086486709","display_name":"Juan F. De Paz","orcid":"https://orcid.org/0000-0001-9461-7922"},"institutions":[{"id":"https://openalex.org/I184999862","display_name":"Universidad de Salamanca","ror":"https://ror.org/02f40zc51","country_code":"ES","type":"education","lineage":["https://openalex.org/I184999862"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Juan Francisco De Paz Santana","raw_affiliation_strings":["Expert Systems and Applications Laboratory (ESALAB), Faculty of Science, University of Salamanca, Salamanca, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Expert Systems and Applications Laboratory (ESALAB), Faculty of Science, University of Salamanca, Salamanca, Spain","institution_ids":["https://openalex.org/I184999862"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5073796039"],"corresponding_institution_ids":["https://openalex.org/I184999862"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.9262,"has_fulltext":true,"cited_by_count":10,"citation_normalized_percentile":{"value":0.73281983,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"9","issue":null,"first_page":"43444","last_page":"43457"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.992900013923645,"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":0.992900013923645,"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/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.9922000169754028,"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/T11447","display_name":"Blind Source Separation Techniques","score":0.9846000075340271,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/drone","display_name":"Drone","score":0.9008861184120178},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.6712815761566162},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6609793305397034},{"id":"https://openalex.org/keywords/propeller","display_name":"Propeller","score":0.5757095813751221},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.49424031376838684},{"id":"https://openalex.org/keywords/source-separation","display_name":"Source separation","score":0.4852316379547119},{"id":"https://openalex.org/keywords/window","display_name":"Window (computing)","score":0.4402274191379547},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.41052985191345215},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.3846392333507538},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.38204237818717957},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3040604591369629},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2069995403289795},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11252227425575256},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.10152873396873474}],"concepts":[{"id":"https://openalex.org/C59519942","wikidata":"https://www.wikidata.org/wiki/Q650665","display_name":"Drone","level":2,"score":0.9008861184120178},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.6712815761566162},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6609793305397034},{"id":"https://openalex.org/C80055088","wikidata":"https://www.wikidata.org/wiki/Q205451","display_name":"Propeller","level":2,"score":0.5757095813751221},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.49424031376838684},{"id":"https://openalex.org/C2776864781","wikidata":"https://www.wikidata.org/wiki/Q52617913","display_name":"Source separation","level":2,"score":0.4852316379547119},{"id":"https://openalex.org/C2778751112","wikidata":"https://www.wikidata.org/wiki/Q835016","display_name":"Window (computing)","level":2,"score":0.4402274191379547},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.41052985191345215},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.3846392333507538},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.38204237818717957},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3040604591369629},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2069995403289795},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11252227425575256},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.10152873396873474},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C199104240","wikidata":"https://www.wikidata.org/wiki/Q118291","display_name":"Marine engineering","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/access.2021.3065775","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3065775","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09376888.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:gredos.usal.es:10366/169817","is_oa":false,"landing_page_url":"http://hdl.handle.net/10366/169817","pdf_url":null,"source":{"id":"https://openalex.org/S4377196290","display_name":"Gredos (University of Salamanca)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I184999862","host_organization_name":"Universidad de Salamanca","host_organization_lineage":["https://openalex.org/I184999862"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/publishedVersion"},{"id":"pmh:oai:comum.rcaap.pt:10400.26/37216","is_oa":true,"landing_page_url":"http://hdl.handle.net/10400.26/37216","pdf_url":"http://hdl.handle.net/10400.26/37216","source":{"id":"https://openalex.org/S4306401666","display_name":"Reposit\u00f3rio Comum (Reposit\u00f3rio Cient\u00edfico de Acesso Aberto de Portugal)","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","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"journal article"},{"id":"pmh:oai:doaj.org/article:be66faa26abd454dab8e1d6406c68ebb","is_oa":true,"landing_page_url":"https://doaj.org/article/be66faa26abd454dab8e1d6406c68ebb","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":"IEEE Access, Vol 9, Pp 43444-43457 (2021)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2021.3065775","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3065775","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09376888.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2","score":0.6299999952316284}],"awards":[{"id":"https://openalex.org/G2265132099","display_name":null,"funder_award_id":"EDU/556/2019","funder_id":"https://openalex.org/F4320338080","funder_display_name":"European Social Fund"},{"id":"https://openalex.org/G4975361636","display_name":null,"funder_award_id":"EDU/556/2019","funder_id":"https://openalex.org/F4320328351","funder_display_name":"Junta de Castilla y Le\u00f3n"},{"id":"https://openalex.org/G6659342279","display_name":null,"funder_award_id":"2020/00006/001-L704","funder_id":"https://openalex.org/F4320328351","funder_display_name":"Junta de Castilla y Le\u00f3n"},{"id":"https://openalex.org/G6707449129","display_name":null,"funder_award_id":"2014-2020","funder_id":"https://openalex.org/F4320338080","funder_display_name":"European Social Fund"}],"funders":[{"id":"https://openalex.org/F4320328351","display_name":"Junta de Castilla y Le\u00f3n","ror":"https://ror.org/02s8dab97"},{"id":"https://openalex.org/F4320331009","display_name":"Ministerio de Educaci\u00f3n y Formaci\u00f3n Profesional","ror":null},{"id":"https://openalex.org/F4320338080","display_name":"European Social Fund","ror":"https://ror.org/00k4n6c32"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3139285504.pdf","grobid_xml":"https://content.openalex.org/works/W3139285504.grobid-xml"},"referenced_works_count":53,"referenced_works":["https://openalex.org/W34183277","https://openalex.org/W285277413","https://openalex.org/W1563281071","https://openalex.org/W1963632412","https://openalex.org/W2024177505","https://openalex.org/W2025240599","https://openalex.org/W2061277372","https://openalex.org/W2066986520","https://openalex.org/W2078052066","https://openalex.org/W2088430849","https://openalex.org/W2089796714","https://openalex.org/W2101195608","https://openalex.org/W2104756801","https://openalex.org/W2110075977","https://openalex.org/W2117984044","https://openalex.org/W2135158232","https://openalex.org/W2168293196","https://openalex.org/W2246543817","https://openalex.org/W2281541037","https://openalex.org/W2315248615","https://openalex.org/W2333337128","https://openalex.org/W2397419234","https://openalex.org/W2404129556","https://openalex.org/W2567564176","https://openalex.org/W2585172092","https://openalex.org/W2744883734","https://openalex.org/W2799134332","https://openalex.org/W2803415270","https://openalex.org/W2883518892","https://openalex.org/W2903163233","https://openalex.org/W2911399146","https://openalex.org/W2961674732","https://openalex.org/W2962039299","https://openalex.org/W2962930443","https://openalex.org/W2963868408","https://openalex.org/W2965182567","https://openalex.org/W2965282341","https://openalex.org/W2969763855","https://openalex.org/W2970440455","https://openalex.org/W3003766753","https://openalex.org/W3005652166","https://openalex.org/W3016360629","https://openalex.org/W3048055188","https://openalex.org/W3081138412","https://openalex.org/W3095552404","https://openalex.org/W4210958032","https://openalex.org/W4213147678","https://openalex.org/W4297709905","https://openalex.org/W6670058625","https://openalex.org/W6675587821","https://openalex.org/W6742817531","https://openalex.org/W6758098482","https://openalex.org/W6776275185"],"related_works":["https://openalex.org/W4229448053","https://openalex.org/W4247925126","https://openalex.org/W4327774218","https://openalex.org/W2059768187","https://openalex.org/W4312858960","https://openalex.org/W4386036939","https://openalex.org/W4379143281","https://openalex.org/W2605096541","https://openalex.org/W3200286695","https://openalex.org/W4212885606"],"abstract_inverted_index":{"The":[0,30,58,207],"usage":[1],"of":[2,10,18,27,44,60,86,94,127,155,162,180,191,217,231],"drones":[3,36,114],"is":[4,22,40,83,168,188,197,203,224,264],"increasingly":[5],"spreading":[6],"into":[7],"new":[8,20],"fields":[9],"application,":[11],"ranging":[12],"from":[13,51,131],"agriculture":[14],"to":[15,193,220],"security.":[16],"One":[17],"these":[19],"applications":[21],"sound":[23,43],"recording":[24,255],"in":[25,142],"areas":[26],"difficult":[28],"access.":[29],"challenge":[31],"that":[32,41,112],"arises":[33],"when":[34],"using":[35,135],"for":[37,90,210],"this":[38,121,156],"purpose":[39],"the":[42,45,52,56,61,65,87,91,125,144,172,189,198,204,222,242,246,254,262],"recorded":[46],"sources":[47],"must":[48],"be":[49,194],"separated":[50],"noise":[53,62,130,243,263],"produced":[54,244],"by":[55,64,226,245,259,266],"drone.":[57],"intensity":[59],"emitted":[63],"drone":[66,129,247],"depends":[67],"on":[68,111,233,248],"several":[69],"factors":[70],"such":[71],"as":[72],"engine":[73],"power,":[74],"propeller":[75,79],"rotation":[76],"speed,":[77],"or":[78],"type.":[80],"Noise":[81],"reduction":[82],"thus":[84],"one":[85],"greatest":[88],"challenges":[89],"next":[92],"generations":[93],"unmanned":[95,100],"aerial":[96,101],"vehicles":[97],"(UAVs)":[98],"and":[99,141,201,215],"systems":[102],"(UAS).":[103],"Even":[104],"though":[105],"some":[106],"advances":[107],"have":[108],"been":[109,257],"made":[110],"matter,":[113],"still":[115],"produce":[116],"a":[117,159,177,228],"considerable":[118],"noise.":[119],"In":[120],"article,":[122],"we":[123,151],"approach":[124],"problem":[126],"removing":[128],"single-channel":[132],"audio":[133],"recordings":[134],"blind":[136],"source":[137],"separation":[138],"(BSS)":[139],"techniques,":[140],"particular,":[143],"singular":[145],"spectrum":[146],"analysis":[147],"algorithm":[148,157],"(SSA).":[149],"Furthermore,":[150],"propose":[152],"an":[153],"optimization":[154],"with":[158],"spatial":[160,178],"complexity":[161,179],"<i":[163],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[164,183],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">O</i>":[165],"(nt),":[166],"which":[167,175],"significantly":[169],"lower":[170],"than":[171],"naive":[173],"implementation":[174],"has":[176,256],"O(tk":[181],"<sup":[182],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>":[184],")":[185],"(where":[186],"n":[187],"number":[190,216],"sounds":[192],"recovered,":[195],"t":[196],"signal":[199],"length":[200,214],"k":[202],"window":[205],"size).":[206],"best":[208],"value":[209],"each":[211],"parameter":[212],"(window":[213],"components":[218],"used":[219],"reconstruct":[221],"source)":[223],"selected":[225],"testing":[227],"wide":[229],"range":[230],"values":[232],"different":[234],"noise-sound":[235],"ratios.":[236],"Our":[237],"system":[238],"can":[239],"greatly":[240],"reduce":[241],"said":[249],"recordings.":[250],"On":[251],"average,":[252],"after":[253],"processed":[258],"our":[260],"method,":[261],"reduced":[265],"1.41":[267],"decibels.":[268]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":1}],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-10-10T00:00:00"}