{"id":"https://openalex.org/W1965912016","doi":"https://doi.org/10.1109/icassp.2014.6855137","title":"Voice conversion based on Non-negative matrix factorization using phoneme-categorized dictionary","display_name":"Voice conversion based on Non-negative matrix factorization using phoneme-categorized dictionary","publication_year":2014,"publication_date":"2014-05-01","ids":{"openalex":"https://openalex.org/W1965912016","doi":"https://doi.org/10.1109/icassp.2014.6855137","mag":"1965912016"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2014.6855137","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2014.6855137","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","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/A5011355805","display_name":"Ryo Aihara","orcid":"https://orcid.org/0009-0006-6492-3754"},"institutions":[{"id":"https://openalex.org/I65837984","display_name":"Kobe University","ror":"https://ror.org/03tgsfw79","country_code":"JP","type":"education","lineage":["https://openalex.org/I65837984"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryo Aihara","raw_affiliation_strings":["Graduate School of System Informatics, Kobe University, Kobe, Japan","Grad. Sch. of Syst. Inf., Kobe Univ., Kobe, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of System Informatics, Kobe University, Kobe, Japan","institution_ids":["https://openalex.org/I65837984"]},{"raw_affiliation_string":"Grad. Sch. of Syst. Inf., Kobe Univ., Kobe, Japan","institution_ids":["https://openalex.org/I65837984"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041887072","display_name":"Toru Nakashika","orcid":"https://orcid.org/0000-0003-1863-6771"},"institutions":[{"id":"https://openalex.org/I65837984","display_name":"Kobe University","ror":"https://ror.org/03tgsfw79","country_code":"JP","type":"education","lineage":["https://openalex.org/I65837984"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Toru Nakashika","raw_affiliation_strings":["Kobe Daigaku, Kobe, Hyogo, JP","Grad. Sch. of Syst. Inf., Kobe Univ., Kobe, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kobe Daigaku, Kobe, Hyogo, JP","institution_ids":[]},{"raw_affiliation_string":"Grad. Sch. of Syst. Inf., Kobe Univ., Kobe, Japan","institution_ids":["https://openalex.org/I65837984"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009283470","display_name":"Tetsuya Takiguchi","orcid":"https://orcid.org/0000-0001-5005-7679"},"institutions":[{"id":"https://openalex.org/I65837984","display_name":"Kobe University","ror":"https://ror.org/03tgsfw79","country_code":"JP","type":"education","lineage":["https://openalex.org/I65837984"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tetsuya Takiguchi","raw_affiliation_strings":["Graduate School of System Informatics, Kobe University, Kobe, Japan","Grad. Sch. of Syst. Inf., Kobe Univ., Kobe, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of System Informatics, Kobe University, Kobe, Japan","institution_ids":["https://openalex.org/I65837984"]},{"raw_affiliation_string":"Grad. Sch. of Syst. Inf., Kobe Univ., Kobe, Japan","institution_ids":["https://openalex.org/I65837984"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5040766342","display_name":"Yasuo Ariki","orcid":"https://orcid.org/0000-0003-3473-2026"},"institutions":[{"id":"https://openalex.org/I65837984","display_name":"Kobe University","ror":"https://ror.org/03tgsfw79","country_code":"JP","type":"education","lineage":["https://openalex.org/I65837984"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yasuo Ariki","raw_affiliation_strings":["Graduate School of System Informatics, Kobe University, Kobe, Japan","Grad. Sch. of Syst. Inf., Kobe Univ., Kobe, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of System Informatics, Kobe University, Kobe, Japan","institution_ids":["https://openalex.org/I65837984"]},{"raw_affiliation_string":"Grad. Sch. of Syst. Inf., Kobe Univ., Kobe, Japan","institution_ids":["https://openalex.org/I65837984"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I65837984"],"apc_list":null,"apc_paid":null,"fwci":3.9336,"has_fulltext":false,"cited_by_count":38,"citation_normalized_percentile":{"value":0.95174681,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"7894","last_page":"7898"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10201","display_name":"Speech Recognition and Synthesis","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10201","display_name":"Speech Recognition and Synthesis","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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":0.9997000098228455,"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/T11309","display_name":"Music and Audio Processing","score":0.9927999973297119,"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/non-negative-matrix-factorization","display_name":"Non-negative matrix factorization","score":0.9080362915992737},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7944860458374023},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.6784929633140564},{"id":"https://openalex.org/keywords/matrix-decomposition","display_name":"Matrix decomposition","score":0.620254635810852},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5557274222373962},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.524956464767456},{"id":"https://openalex.org/keywords/selection","display_name":"Selection (genetic algorithm)","score":0.47897008061408997},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.4101765751838684}],"concepts":[{"id":"https://openalex.org/C152671427","wikidata":"https://www.wikidata.org/wiki/Q10843505","display_name":"Non-negative matrix factorization","level":4,"score":0.9080362915992737},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7944860458374023},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.6784929633140564},{"id":"https://openalex.org/C42355184","wikidata":"https://www.wikidata.org/wiki/Q1361088","display_name":"Matrix decomposition","level":3,"score":0.620254635810852},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5557274222373962},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.524956464767456},{"id":"https://openalex.org/C81917197","wikidata":"https://www.wikidata.org/wiki/Q628760","display_name":"Selection (genetic algorithm)","level":2,"score":0.47897008061408997},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.4101765751838684},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"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/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2014.6855137","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2014.6855137","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","score":0.6200000047683716,"display_name":"Quality Education"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W10800834","https://openalex.org/W49412823","https://openalex.org/W185399533","https://openalex.org/W190419602","https://openalex.org/W1566744681","https://openalex.org/W1588266896","https://openalex.org/W1963778986","https://openalex.org/W1965255698","https://openalex.org/W2011378162","https://openalex.org/W2017425464","https://openalex.org/W2022125261","https://openalex.org/W2049686551","https://openalex.org/W2077801020","https://openalex.org/W2078722660","https://openalex.org/W2105160541","https://openalex.org/W2120605154","https://openalex.org/W2123003832","https://openalex.org/W2135029798","https://openalex.org/W2141520175","https://openalex.org/W2150415460","https://openalex.org/W2156142001","https://openalex.org/W2407110532","https://openalex.org/W3143596294","https://openalex.org/W6602007935","https://openalex.org/W6633899882","https://openalex.org/W6635216677","https://openalex.org/W6680012447"],"related_works":["https://openalex.org/W4390394189","https://openalex.org/W2037504162","https://openalex.org/W2539013788","https://openalex.org/W2792706544","https://openalex.org/W1568451138","https://openalex.org/W2156699640","https://openalex.org/W2045265907","https://openalex.org/W2972997031","https://openalex.org/W2146544734","https://openalex.org/W2075222291"],"abstract_inverted_index":{"We":[0],"present":[1],"in":[2,118],"this":[3,91,116,158],"paper":[4],"an":[5],"exemplar-based":[6,92],"voice":[7],"conversion":[8,27],"(VC)":[9],"method":[10,136,159,175],"using":[11,18,65,137,140],"a":[12,129,133,151,169,177],"phoneme-categorized":[13,130],"dictionary.":[14],"Sparse":[15],"representation-based":[16],"VC":[17,35,146],"Non-negative":[19],"matrix":[20],"factorization":[21],"(NMF)":[22],"is":[23,63,76,147],"employed":[24],"for":[25],"spectral":[26],"between":[28,109],"different":[29],"speakers.":[30,58],"In":[31,115],"our":[32],"previous":[33],"NMF-based":[34,153,179],"method,":[36],"source":[37,55,61,67,88],"exemplars":[38,41,68,81,100],"and":[39,56,69,82,102,112,132,176],"target":[40,57,80],"are":[42],"extracted":[43],"from":[44,78],"parallel":[45],"training":[46,99],"data,":[47],"having":[48],"the":[49,54,66,73,79,83,87,98,122,141,143],"same":[50],"texts":[51],"uttered":[52],"by":[53,162],"The":[59,155],"input":[60,110],"signal":[62],"represented":[64],"their":[70],"weights.":[71],"Then,":[72],"converted":[74],"speech":[75],"constructed":[77],"weights":[84],"related":[85],"to":[86,95,120,150],"exemplars.":[89,114],"However,":[90],"approach":[93],"needs":[94],"hold":[96],"all":[97],"(frames),":[101],"it":[103],"may":[104],"cause":[105],"mismatching":[106,123],"of":[107,124,145,157,168],"phonemes":[108],"signals":[111],"selected":[113],"paper,":[117],"order":[119],"reduce":[121],"phoneme":[125],"alignment,":[126],"we":[127],"propose":[128],"sub-dictionary":[131],"dictionary":[134],"selection":[135],"NMF.":[138],"By":[139],"sub-dictionary,":[142],"performance":[144],"improved":[148],"compared":[149],"conventional":[152,170,178],"VC.":[154],"effectiveness":[156,165],"was":[160],"confirmed":[161],"comparing":[163],"its":[164],"with":[166],"that":[167],"Gaussian":[171],"Mixture":[172],"Model":[173],"(GMM)-based":[174],"method.":[180]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":6},{"year":2017,"cited_by_count":7},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":6},{"year":2014,"cited_by_count":1}],"updated_date":"2026-08-11T07:18:39.950985","created_date":"2025-10-10T00:00:00"}