{"id":"https://openalex.org/W146063573","doi":"https://doi.org/10.21437/interspeech.2004-720","title":"Improved iterative wiener filtering for non-stationary noise speech enhancement","display_name":"Improved iterative wiener filtering for non-stationary noise speech enhancement","publication_year":2004,"publication_date":"2004-10-04","ids":{"openalex":"https://openalex.org/W146063573","doi":"https://doi.org/10.21437/interspeech.2004-720","mag":"146063573"},"language":"en","primary_location":{"id":"doi:10.21437/interspeech.2004-720","is_oa":false,"landing_page_url":"https://doi.org/10.21437/interspeech.2004-720","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Interspeech 2004","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5069425803","display_name":"T.V. Sreenivas","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"T. V. Sreenivas","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062968455","display_name":"K. S. Suresh Rao","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"K. Sharath Rao","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5102792814","display_name":"A. S. Vasudeva Murthy","orcid":"https://orcid.org/0000-0001-9933-1608"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A. Sreenivasa Murthy","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.5188,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.52699741,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"2713","last_page":"2716"},"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":0.9995999932289124,"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9975000023841858,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/codebook","display_name":"Codebook","score":0.8392993211746216},{"id":"https://openalex.org/keywords/speech-enhancement","display_name":"Speech enhancement","score":0.8356807231903076},{"id":"https://openalex.org/keywords/initialization","display_name":"Initialization","score":0.7010585069656372},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6957001686096191},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.692146360874176},{"id":"https://openalex.org/keywords/wiener-filter","display_name":"Wiener filter","score":0.5883970260620117},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.5748798847198486},{"id":"https://openalex.org/keywords/speech-coding","display_name":"Speech coding","score":0.42125606536865234},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3629705309867859},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3602217435836792},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.32467395067214966},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.24923822283744812},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.07065960764884949}],"concepts":[{"id":"https://openalex.org/C127759330","wikidata":"https://www.wikidata.org/wiki/Q637416","display_name":"Codebook","level":2,"score":0.8392993211746216},{"id":"https://openalex.org/C2776182073","wikidata":"https://www.wikidata.org/wiki/Q7575395","display_name":"Speech enhancement","level":3,"score":0.8356807231903076},{"id":"https://openalex.org/C114466953","wikidata":"https://www.wikidata.org/wiki/Q6034165","display_name":"Initialization","level":2,"score":0.7010585069656372},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6957001686096191},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.692146360874176},{"id":"https://openalex.org/C18537770","wikidata":"https://www.wikidata.org/wiki/Q25523","display_name":"Wiener filter","level":2,"score":0.5883970260620117},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.5748798847198486},{"id":"https://openalex.org/C13895895","wikidata":"https://www.wikidata.org/wiki/Q3270773","display_name":"Speech coding","level":2,"score":0.42125606536865234},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3629705309867859},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3602217435836792},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.32467395067214966},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.24923822283744812},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.07065960764884949},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.21437/interspeech.2004-720","is_oa":false,"landing_page_url":"https://doi.org/10.21437/interspeech.2004-720","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Interspeech 2004","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","score":0.8299999833106995,"display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W1546892833","https://openalex.org/W1975500006","https://openalex.org/W2006256589","https://openalex.org/W2017866319"],"related_works":["https://openalex.org/W2014919663","https://openalex.org/W2171564668","https://openalex.org/W2106793170","https://openalex.org/W1577562165","https://openalex.org/W2110375858","https://openalex.org/W2365863649","https://openalex.org/W2367622526","https://openalex.org/W2028846388","https://openalex.org/W2072015625","https://openalex.org/W4295210860"],"abstract_inverted_index":{"A":[0],"clean":[1],"speech":[2,21,123],"VQ":[3],"codebook":[4,71],"has":[5],"been":[6],"shown":[7],"to":[8,50],"be":[9],"effective":[10,53,112],"in":[11,15,62,73,91,94,136,145,149],"imposing":[12],"intraframe":[13],"constraints":[14,72],"Iterative":[16],"Wiener":[17],"Filtering":[18],"(CCIWF)":[19],"for":[20,24,44],"enhancement.":[22,124],"However,":[23],"time-varying":[25],"noises,":[26],"the":[27,40,56,65,74,98,120,130],"performance":[28,67,121],"is":[29,68,87],"sub-optimum.":[30],"We":[31],"propose":[32],"a":[33,51,82,104,107],"smoothed":[34],"noise":[35,59],"update":[36,117],"technique":[37],"that":[38,103,129],"uses":[39],"estimated":[41],"signal":[42,46],"spectrum":[43,116],"subsequent":[45],"estimation.":[47],"This":[48],"leads":[49],"more":[52],"solution":[54],"than":[55],"soft-decision":[57],"based":[58],"estimate":[60],"found":[61],"literature.":[63],"Further,":[64],"CCIWF":[66],"improved":[69],"using":[70],"LAR":[75],"domain":[76],"instead":[77],"of":[78,97,106,122],"LPC":[79],"domain.":[80],"Also,":[81],"new":[83,131],"iteration":[84],"initialization":[85,113],"method":[86],"proposed":[88],"which":[89],"results":[90,127,144],"better":[92],"enhancement":[93],"over":[95],"70%":[96],"frames.":[99],"Thus,":[100],"we":[101],"show":[102,128],"combination":[105,132],"robust":[108],"parameter":[109],"space,":[110],"an":[111,146],"and":[114],"continuous":[115],"significantly":[118],"improves":[119],"Speech":[125],"recognition":[126,138,150],"provides":[133],"10-20%":[134],"increase":[135],"word":[137],"scores":[139],"whereas":[140],"simple":[141],"spectral":[142],"subtraction":[143],"actual":[147],"decrease":[148],"score.":[151]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}