{"id":"https://openalex.org/W2162956771","doi":"https://doi.org/10.1155/2012/324398","title":"Practically Efficient Blind Speech Separation Using Frequency Band Selection Based on Magnitude Squared Coherence and a Small Dodecahedral Microphone Array","display_name":"Practically Efficient Blind Speech Separation Using Frequency Band Selection Based on Magnitude Squared Coherence and a Small Dodecahedral Microphone Array","publication_year":2012,"publication_date":"2012-01-01","ids":{"openalex":"https://openalex.org/W2162956771","doi":"https://doi.org/10.1155/2012/324398","mag":"2162956771"},"language":"en","primary_location":{"id":"doi:10.1155/2012/324398","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2012/324398","pdf_url":"https://downloads.hindawi.com/journals/jece/2012/324398.pdf","source":{"id":"https://openalex.org/S174662166","display_name":"Journal of Electrical and Computer Engineering","issn_l":"2090-0147","issn":["2090-0147","2090-0155"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Electrical and Computer Engineering","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://downloads.hindawi.com/journals/jece/2012/324398.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5021841017","display_name":"Kazunobu Kondo","orcid":"https://orcid.org/0000-0001-7428-696X"},"institutions":[{"id":"https://openalex.org/I1295929820","display_name":"Yamaha (Japan)","ror":"https://ror.org/05s7fvh27","country_code":"JP","type":"company","lineage":["https://openalex.org/I1295929820"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Kazunobu Kondo","raw_affiliation_strings":["Corporate Research & Development Center, Yamaha Corporation, 203 Matsunokijima, Iwata 438-0192, Japan","Corporate Research & Development Center, Yamaha Corporation, 203 Matsunokijima, Iwata 438-0192"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Corporate Research & Development Center, Yamaha Corporation, 203 Matsunokijima, Iwata 438-0192, Japan","institution_ids":["https://openalex.org/I1295929820"]},{"raw_affiliation_string":"Corporate Research & Development Center, Yamaha Corporation, 203 Matsunokijima, Iwata 438-0192","institution_ids":["https://openalex.org/I1295929820"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044764984","display_name":"Yusuke Mizuno","orcid":null},"institutions":[{"id":"https://openalex.org/I178574317","display_name":"Mie University","ror":"https://ror.org/01529vy56","country_code":"JP","type":"education","lineage":["https://openalex.org/I178574317"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yusuke Mizuno","raw_affiliation_strings":["Graduate School of Engineering, Mie University, 1515 Kurimamachiya-cho, Tsu 514-0102, Japan","Graduate School of Engineering, Mie University, 1515 Kurimamachiya-cho, Tsu 514-0102"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Engineering, Mie University, 1515 Kurimamachiya-cho, Tsu 514-0102, Japan","institution_ids":["https://openalex.org/I178574317"]},{"raw_affiliation_string":"Graduate School of Engineering, Mie University, 1515 Kurimamachiya-cho, Tsu 514-0102","institution_ids":["https://openalex.org/I178574317"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110268050","display_name":"Takanori Nishino","orcid":null},"institutions":[{"id":"https://openalex.org/I60134161","display_name":"Nagoya University","ror":"https://ror.org/04chrp450","country_code":"JP","type":"education","lineage":["https://openalex.org/I60134161"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takanori Nishino","raw_affiliation_strings":["Graduate School of Information Science, Nagoya University, Chikusa-ku Furou-cho, Nagoya 464-8603, Japan","Graduate School of Information Science, Nagoya University, Chikusa-ku Furou-cho, Nagoya 464-8603"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Information Science, Nagoya University, Chikusa-ku Furou-cho, Nagoya 464-8603, Japan","institution_ids":["https://openalex.org/I60134161"]},{"raw_affiliation_string":"Graduate School of Information Science, Nagoya University, Chikusa-ku Furou-cho, Nagoya 464-8603","institution_ids":["https://openalex.org/I60134161"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101685454","display_name":"Kazuya Takeda","orcid":"https://orcid.org/0000-0003-0452-9844"},"institutions":[{"id":"https://openalex.org/I60134161","display_name":"Nagoya University","ror":"https://ror.org/04chrp450","country_code":"JP","type":"education","lineage":["https://openalex.org/I60134161"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kazuya Takeda","raw_affiliation_strings":["Graduate School of Information Science, Nagoya University, Chikusa-ku Furou-cho, Nagoya 464-8603, Japan","Graduate School of Information Science, Nagoya University, Chikusa-ku Furou-cho, Nagoya 464-8603"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Information Science, Nagoya University, Chikusa-ku Furou-cho, Nagoya 464-8603, Japan","institution_ids":["https://openalex.org/I60134161"]},{"raw_affiliation_string":"Graduate School of Information Science, Nagoya University, Chikusa-ku Furou-cho, Nagoya 464-8603","institution_ids":["https://openalex.org/I60134161"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5021841017"],"corresponding_institution_ids":["https://openalex.org/I1295929820"],"apc_list":{"value":925,"currency":"USD","value_usd":925},"apc_paid":{"value":925,"currency":"USD","value_usd":925},"fwci":0.2945,"has_fulltext":true,"cited_by_count":2,"citation_normalized_percentile":{"value":0.62768674,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"2012","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11447","display_name":"Blind Source Separation Techniques","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/T11447","display_name":"Blind Source Separation Techniques","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/T10860","display_name":"Speech and Audio Processing","score":0.9993000030517578,"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":0.9900000095367432,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/microphone","display_name":"Microphone","score":0.6450825929641724},{"id":"https://openalex.org/keywords/coherence","display_name":"Coherence (philosophical gambling strategy)","score":0.5848962664604187},{"id":"https://openalex.org/keywords/frequency-band","display_name":"Frequency band","score":0.5609684586524963},{"id":"https://openalex.org/keywords/microphone-array","display_name":"Microphone array","score":0.5177842378616333},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.471204936504364},{"id":"https://openalex.org/keywords/blind-signal-separation","display_name":"Blind signal separation","score":0.4687165319919586},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.45433053374290466},{"id":"https://openalex.org/keywords/distortion","display_name":"Distortion (music)","score":0.4480297863483429},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.44556111097335815},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.4407334625720978},{"id":"https://openalex.org/keywords/frequency-domain","display_name":"Frequency domain","score":0.4237251281738281},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.41333746910095215},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.3951966464519501},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3016827702522278},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2950979769229889},{"id":"https://openalex.org/keywords/loudspeaker","display_name":"Loudspeaker","score":0.20809167623519897},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.19846877455711365},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.15942010283470154},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.1322440207004547},{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.11559683084487915}],"concepts":[{"id":"https://openalex.org/C2778263558","wikidata":"https://www.wikidata.org/wiki/Q46384","display_name":"Microphone","level":3,"score":0.6450825929641724},{"id":"https://openalex.org/C2781181686","wikidata":"https://www.wikidata.org/wiki/Q4226068","display_name":"Coherence (philosophical gambling strategy)","level":2,"score":0.5848962664604187},{"id":"https://openalex.org/C2778116611","wikidata":"https://www.wikidata.org/wiki/Q25110567","display_name":"Frequency band","level":3,"score":0.5609684586524963},{"id":"https://openalex.org/C2778806681","wikidata":"https://www.wikidata.org/wiki/Q907293","display_name":"Microphone array","level":4,"score":0.5177842378616333},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.471204936504364},{"id":"https://openalex.org/C120317606","wikidata":"https://www.wikidata.org/wiki/Q17105967","display_name":"Blind signal separation","level":3,"score":0.4687165319919586},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.45433053374290466},{"id":"https://openalex.org/C126780896","wikidata":"https://www.wikidata.org/wiki/Q899871","display_name":"Distortion (music)","level":4,"score":0.4480297863483429},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.44556111097335815},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.4407334625720978},{"id":"https://openalex.org/C19118579","wikidata":"https://www.wikidata.org/wiki/Q786423","display_name":"Frequency domain","level":2,"score":0.4237251281738281},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.41333746910095215},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.3951966464519501},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3016827702522278},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2950979769229889},{"id":"https://openalex.org/C157138929","wikidata":"https://www.wikidata.org/wiki/Q570","display_name":"Loudspeaker","level":2,"score":0.20809167623519897},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.19846877455711365},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.15942010283470154},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.1322440207004547},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.11559683084487915},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"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/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1155/2012/324398","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2012/324398","pdf_url":"https://downloads.hindawi.com/journals/jece/2012/324398.pdf","source":{"id":"https://openalex.org/S174662166","display_name":"Journal of Electrical and Computer Engineering","issn_l":"2090-0147","issn":["2090-0147","2090-0155"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Electrical and Computer Engineering","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:3094be8187b3475a8fb07c80100c319f","is_oa":true,"landing_page_url":"https://doaj.org/article/3094be8187b3475a8fb07c80100c319f","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":"Journal of Electrical and Computer Engineering, Vol 2012 (2012)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1155/2012/324398","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2012/324398","pdf_url":"https://downloads.hindawi.com/journals/jece/2012/324398.pdf","source":{"id":"https://openalex.org/S174662166","display_name":"Journal of Electrical and Computer Engineering","issn_l":"2090-0147","issn":["2090-0147","2090-0155"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Electrical and Computer Engineering","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2162956771.pdf","grobid_xml":"https://content.openalex.org/works/W2162956771.grobid-xml"},"referenced_works_count":27,"referenced_works":["https://openalex.org/W30945556","https://openalex.org/W56542410","https://openalex.org/W1493163583","https://openalex.org/W1500860679","https://openalex.org/W1543386260","https://openalex.org/W1560013842","https://openalex.org/W1580676799","https://openalex.org/W1602819319","https://openalex.org/W1974191337","https://openalex.org/W2027884847","https://openalex.org/W2049631158","https://openalex.org/W2096441936","https://openalex.org/W2097270777","https://openalex.org/W2107570138","https://openalex.org/W2108384452","https://openalex.org/W2128911505","https://openalex.org/W2134642725","https://openalex.org/W2135594672","https://openalex.org/W2137709670","https://openalex.org/W2138477864","https://openalex.org/W2142713011","https://openalex.org/W2143673560","https://openalex.org/W2149693148","https://openalex.org/W2151542770","https://openalex.org/W2154313590","https://openalex.org/W2170120409","https://openalex.org/W2170768669"],"related_works":["https://openalex.org/W1879255185","https://openalex.org/W2769861442","https://openalex.org/W1980506188","https://openalex.org/W4240587264","https://openalex.org/W1510462426","https://openalex.org/W2900122540","https://openalex.org/W2963983801","https://openalex.org/W3119734852","https://openalex.org/W2804363668","https://openalex.org/W1515932869"],"abstract_inverted_index":{"Small":[0],"agglomerative":[1],"microphone":[2,34,91],"array":[3,92],"systems":[4],"have":[5,27],"been":[6],"proposed":[7],"for":[8],"use":[9,154],"with":[10,118],"speech":[11],"communication":[12],"and":[13,32,58,86,102,140],"recognition":[14],"systems.":[15],"Blind":[16],"source":[17],"separation":[18,30],"methods":[19],"based":[20,73,82],"on":[21,74,83],"frequency":[22,126,158],"domain":[23],"independent":[24],"component":[25],"analysis":[26],"shown":[28],"significant":[29],"performance,":[31],"the":[33,44,54,84,90,99,103,113,123,153],"arrays":[35],"are":[36,80,106],"small":[37],"enough":[38],"to":[39,98,152],"make":[40],"them":[41],"portable.":[42],"However,":[43],"level":[45],"of":[46,89,125,155],"computational":[47,114],"complexity":[48,115],"involved":[49],"is":[50,95,116],"very":[51],"high":[52],"because":[53],"conventional":[55],"signal":[56],"collection":[57],"processing":[59],"method":[60,72],"uses":[61],"60":[62],"microphones.":[63],"In":[64],"this":[65],"paper,":[66],"we":[67],"propose":[68],"a":[69,119],"band":[70],"selection":[71],"magnitude":[75],"squared":[76],"coherence.":[77],"Frequency":[78],"bands":[79,105],"selected":[81,104],"spatial":[85],"geometric":[87],"characteristics":[88],"device":[93],"which":[94],"strongly":[96],"related":[97],"dodecahedral":[100],"shape,":[101],"nonuniformly":[107],"spaced.":[108],"The":[109],"estimated":[110],"reduction":[111,121],"in":[112,122,149],"90%":[117],"68%":[120],"number":[124],"bands.":[127],"Separation":[128],"performance":[129,150],"achieved":[130],"during":[131],"our":[132],"experimental":[133],"evaluation":[134],"was":[135],"7.45":[136],"(dB)":[137,142],"(signal\u2010to\u2010noise":[138],"ratio)":[139],"2.30":[141],"(cepstral":[143],"distortion).":[144],"These":[145],"results":[146],"show":[147],"improvement":[148],"compared":[151],"uniformly":[156],"spaced":[157],"band.":[159]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2025-10-10T00:00:00"}