{"id":"https://openalex.org/W2028449620","doi":"https://doi.org/10.1109/tasl.2012.2215590","title":"On Reducing Harmonic and Sampling Distortion in Vocal Tract Length Normalization","display_name":"On Reducing Harmonic and Sampling Distortion in Vocal Tract Length Normalization","publication_year":2012,"publication_date":"2012-08-27","ids":{"openalex":"https://openalex.org/W2028449620","doi":"https://doi.org/10.1109/tasl.2012.2215590","mag":"2028449620"},"language":"en","primary_location":{"id":"doi:10.1109/tasl.2012.2215590","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tasl.2012.2215590","pdf_url":null,"source":{"id":"https://openalex.org/S199497470","display_name":"IEEE Transactions on Audio Speech and Language Processing","issn_l":"1558-7916","issn":["1558-7916","1558-7924"],"is_oa":false,"is_in_doaj":false,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Audio, Speech, and Language Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://repositorio.uchile.cl/handle/2250/126416","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5029824436","display_name":"N\u00e9stor Becerra Yoma","orcid":"https://orcid.org/0000-0002-3052-4687"},"institutions":[{"id":"https://openalex.org/I69737025","display_name":"University of Chile","ror":"https://ror.org/047gc3g35","country_code":"CL","type":"education","lineage":["https://openalex.org/I69737025"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"N\u00e9stor Becerra Yoma","raw_affiliation_strings":["Department of Electrical Engineering, Universidad de Chile, Santiago, Chile","Dept. of Electr. Eng., Univ. de Chile, Santiago, Chile"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Universidad de Chile, Santiago, Chile","institution_ids":["https://openalex.org/I69737025"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Univ. de Chile, Santiago, Chile","institution_ids":["https://openalex.org/I69737025"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027419576","display_name":"Claudio Garret\u00f3n","orcid":null},"institutions":[{"id":"https://openalex.org/I69737025","display_name":"University of Chile","ror":"https://ror.org/047gc3g35","country_code":"CL","type":"education","lineage":["https://openalex.org/I69737025"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Claudio Garret\u00f3n","raw_affiliation_strings":["Department of Electrical Engineering, Universidad de Chile, Santiago, Chile","Dept. of Electr. Eng., Univ. de Chile, Santiago, Chile"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Universidad de Chile, Santiago, Chile","institution_ids":["https://openalex.org/I69737025"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Univ. de Chile, Santiago, Chile","institution_ids":["https://openalex.org/I69737025"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067731652","display_name":"Fernando Huenup\u00e1n","orcid":"https://orcid.org/0000-0002-8145-0251"},"institutions":[{"id":"https://openalex.org/I11944219","display_name":"Universidad de La Frontera","ror":"https://ror.org/04v0snf24","country_code":"CL","type":"education","lineage":["https://openalex.org/I11944219"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Fernando Huenup\u00e1n","raw_affiliation_strings":["Dept. of Electrical Engineering, Universidad de La Frontera, Temuco, Chile","Dept. of Electr. Eng., Univ. de la Frontera, Temuco, Chile"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Electrical Engineering, Universidad de La Frontera, Temuco, Chile","institution_ids":["https://openalex.org/I11944219"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Univ. de la Frontera, Temuco, Chile","institution_ids":["https://openalex.org/I11944219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068920833","display_name":"Ignacio Catal\u00e1n","orcid":"https://orcid.org/0009-0001-3110-094X"},"institutions":[{"id":"https://openalex.org/I69737025","display_name":"University of Chile","ror":"https://ror.org/047gc3g35","country_code":"CL","type":"education","lineage":["https://openalex.org/I69737025"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Ignacio Catal\u00e1n","raw_affiliation_strings":["Department of Electrical Engineering, Universidad de Chile, Santiago, Chile","Dept. of Electr. Eng., Univ. de Chile, Santiago, Chile"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Universidad de Chile, Santiago, Chile","institution_ids":["https://openalex.org/I69737025"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Univ. de Chile, Santiago, Chile","institution_ids":["https://openalex.org/I69737025"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5019795144","display_name":"Jorge Wuth Sep\u00falveda","orcid":null},"institutions":[{"id":"https://openalex.org/I69737025","display_name":"University of Chile","ror":"https://ror.org/047gc3g35","country_code":"CL","type":"education","lineage":["https://openalex.org/I69737025"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Jorge Wuth Sep\u00falveda","raw_affiliation_strings":["Department of Electrical Engineering, Universidad de Chile, Santiago, Chile","Dept. of Electr. Eng., Univ. de Chile, Santiago, Chile"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Universidad de Chile, Santiago, Chile","institution_ids":["https://openalex.org/I69737025"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Univ. de Chile, Santiago, Chile","institution_ids":["https://openalex.org/I69737025"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4423,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.72281783,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"21","issue":"1","first_page":"110","last_page":"121"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10201","display_name":"Speech Recognition and Synthesis","score":0.9998000264167786,"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":0.9998000264167786,"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":0.9995999932289124,"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":0.9991000294685364,"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/vocal-tract","display_name":"Vocal tract","score":0.8190978765487671},{"id":"https://openalex.org/keywords/image-warping","display_name":"Image warping","score":0.6723596453666687},{"id":"https://openalex.org/keywords/normalization","display_name":"Normalization (sociology)","score":0.6553764939308167},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5794443488121033},{"id":"https://openalex.org/keywords/cepstrum","display_name":"Cepstrum","score":0.5546382069587708},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.5489292144775391},{"id":"https://openalex.org/keywords/linear-interpolation","display_name":"Linear interpolation","score":0.5068240761756897},{"id":"https://openalex.org/keywords/mel-frequency-cepstrum","display_name":"Mel-frequency cepstrum","score":0.44208061695098877},{"id":"https://openalex.org/keywords/interpolation","display_name":"Interpolation (computer graphics)","score":0.4170498251914978},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3363131880760193},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.33496326208114624},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3260231018066406},{"id":"https://openalex.org/keywords/feature-extraction","display_name":"Feature extraction","score":0.17501407861709595}],"concepts":[{"id":"https://openalex.org/C47401133","wikidata":"https://www.wikidata.org/wiki/Q748953","display_name":"Vocal tract","level":2,"score":0.8190978765487671},{"id":"https://openalex.org/C157202957","wikidata":"https://www.wikidata.org/wiki/Q1659609","display_name":"Image warping","level":2,"score":0.6723596453666687},{"id":"https://openalex.org/C136886441","wikidata":"https://www.wikidata.org/wiki/Q926129","display_name":"Normalization (sociology)","level":2,"score":0.6553764939308167},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5794443488121033},{"id":"https://openalex.org/C88485024","wikidata":"https://www.wikidata.org/wiki/Q1054571","display_name":"Cepstrum","level":2,"score":0.5546382069587708},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.5489292144775391},{"id":"https://openalex.org/C171836373","wikidata":"https://www.wikidata.org/wiki/Q2266329","display_name":"Linear interpolation","level":3,"score":0.5068240761756897},{"id":"https://openalex.org/C151989614","wikidata":"https://www.wikidata.org/wiki/Q440370","display_name":"Mel-frequency cepstrum","level":3,"score":0.44208061695098877},{"id":"https://openalex.org/C137800194","wikidata":"https://www.wikidata.org/wiki/Q11713455","display_name":"Interpolation (computer graphics)","level":3,"score":0.4170498251914978},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3363131880760193},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.33496326208114624},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3260231018066406},{"id":"https://openalex.org/C52622490","wikidata":"https://www.wikidata.org/wiki/Q1026626","display_name":"Feature extraction","level":2,"score":0.17501407861709595},{"id":"https://openalex.org/C104114177","wikidata":"https://www.wikidata.org/wiki/Q79782","display_name":"Motion (physics)","level":2,"score":0.0},{"id":"https://openalex.org/C19165224","wikidata":"https://www.wikidata.org/wiki/Q23404","display_name":"Anthropology","level":1,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tasl.2012.2215590","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tasl.2012.2215590","pdf_url":null,"source":{"id":"https://openalex.org/S199497470","display_name":"IEEE Transactions on Audio Speech and Language Processing","issn_l":"1558-7916","issn":["1558-7916","1558-7924"],"is_oa":false,"is_in_doaj":false,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Audio, Speech, and Language Processing","raw_type":"journal-article"},{"id":"pmh:oai:repositorio.uchile.cl:2250/126416","is_oa":true,"landing_page_url":"https://repositorio.uchile.cl/handle/2250/126416","pdf_url":null,"source":{"id":"https://openalex.org/S4306481413","display_name":"Universidad de Chile","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-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Art\u00edculo de revista"}],"best_oa_location":{"id":"pmh:oai:repositorio.uchile.cl:2250/126416","is_oa":true,"landing_page_url":"https://repositorio.uchile.cl/handle/2250/126416","pdf_url":null,"source":{"id":"https://openalex.org/S4306481413","display_name":"Universidad de Chile","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-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Art\u00edculo de revista"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.4000000059604645,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W92058","https://openalex.org/W2964579","https://openalex.org/W27187656","https://openalex.org/W46300955","https://openalex.org/W72757270","https://openalex.org/W1588460267","https://openalex.org/W1907658833","https://openalex.org/W1926768285","https://openalex.org/W1985690171","https://openalex.org/W2004503301","https://openalex.org/W2037740282","https://openalex.org/W2041086022","https://openalex.org/W2082381129","https://openalex.org/W2087555242","https://openalex.org/W2104663520","https://openalex.org/W2114156775","https://openalex.org/W2118049600","https://openalex.org/W2133872184","https://openalex.org/W2134260474","https://openalex.org/W2139246688","https://openalex.org/W2140567543","https://openalex.org/W2146871184","https://openalex.org/W2147000783","https://openalex.org/W2154097909","https://openalex.org/W2164317961","https://openalex.org/W2164931619","https://openalex.org/W2169014310","https://openalex.org/W2169878657","https://openalex.org/W6600006093"],"related_works":["https://openalex.org/W249497648","https://openalex.org/W1482212662","https://openalex.org/W2100012411","https://openalex.org/W3162157266","https://openalex.org/W2162084437","https://openalex.org/W1997579527","https://openalex.org/W3044927199","https://openalex.org/W2102353451","https://openalex.org/W2018086531","https://openalex.org/W1980297060"],"abstract_inverted_index":{"This":[0,63],"paper":[1,64],"proposes":[2,66],"a":[3,17,115,204],"novel":[4],"feature-space":[5],"VTLN":[6,88,124,136,153,177],"(vocal":[7],"tract":[8],"length":[9],"normalization)":[10],"method":[11,72],"that":[12],"models":[13],"frequency":[14,57],"warping":[15,77,147,170],"as":[16,98,100,194],"linear":[18,140],"interpolation":[19],"of":[20,44,58,164,200],"contiguous":[21],"Mel":[22,35],"filter-bank":[23,36,86],"energies.":[24],"The":[25,83,146],"presented":[26,84,185],"technique":[27,202],"aims":[28],"to":[29,40,73,90],"reduce":[30],"the":[31,34,41,55,75,80,107,122,143,151,159,165,169,180,189,195,201],"distortion":[32],"in":[33,79,93,114,130,142,192],"energy":[37],"estimation":[38],"due":[39],"harmonic":[42],"composition":[43],"voiced":[45],"speech":[46,118],"intervals":[47],"and":[48,102,110,161,175],"DFT":[49],"(discrete":[50],"Fourier":[51],"transform)":[52],"sampling":[53],"when":[54,104,132],"central":[56],"band-pass":[59],"filters":[60],"is":[61],"shifted.":[62],"also":[65],"an":[67],"analytical":[68,181],"maximum":[69],"likelihood":[70],"(ML)":[71],"estimate":[74],"optimal":[76],"factor":[78,148,171],"cepstral":[81,144],"space.":[82],"interpolated":[85],"energy-based":[87],"leads":[89],"relative":[91],"reductions":[92,129,191],"WER":[94,131,193],"(word":[95],"error":[96],"rate)":[97],"high":[99],"11.2%":[101],"7.6%":[103],"compared":[105,133],"with":[106,134,150,203],"baseline":[108],"system":[109],"standard":[111,174],"VTLN,":[112],"respectively,":[113],"medium-vocabulary":[116],"continuous":[117],"recognition":[119],"task.":[120],"Also,":[121],"proposed":[123,152],"scheme":[125,184],"can":[126],"provide":[127],"significant":[128],"state-of-the-art":[135,176],"methods":[137],"based":[138],"on":[139,158],"transforms":[141],"feature-space.":[145],"estimated":[149],"approach":[154],"shows":[155],"more":[156,162],"dependence":[157],"speaker":[160],"independence":[163],"acoustic-phonetic":[166],"content":[167],"than":[168],"resulting":[172],"from":[173],"methods.":[178],"Finally,":[179],"ML-based":[182],"optimization":[183],"here":[186],"achieves":[187],"almost":[188],"same":[190],"ML":[196],"grid":[197],"search":[198],"version":[199],"computational":[205],"load":[206],"20":[207],"times":[208],"lower.":[209]},"counts_by_year":[{"year":2016,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
