{"id":"https://openalex.org/W2157350985","doi":"https://doi.org/10.1109/icassp.2002.5743723","title":"Spline-based continuous-time pitch estimation","display_name":"Spline-based continuous-time pitch estimation","publication_year":2002,"publication_date":"2002-05-01","ids":{"openalex":"https://openalex.org/W2157350985","doi":"https://doi.org/10.1109/icassp.2002.5743723","mag":"2157350985"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2002.5743723","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2002.5743723","pdf_url":null,"source":{"id":"https://openalex.org/S4363607879","display_name":"IEEE International Conference on Acoustics Speech and Signal Processing","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":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE International Conference on Acoustics Speech and Signal Processing","raw_type":"proceedings-article"},"type":"article","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/A5058317136","display_name":"Andrei Jefremov","orcid":null},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":true,"raw_author_name":"Andrei Jefremov","raw_affiliation_strings":["Department of Speech, Music and Hearing, KTH Royal Institute of Technology, Stockholm, Sweden"],"affiliations":[{"raw_affiliation_string":"Department of Speech, Music and Hearing, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5087492771","display_name":"W. Bastiaan Kleijn","orcid":"https://orcid.org/0000-0002-1973-3920"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"W. Bastiaan Kleijn","raw_affiliation_strings":["Department of Speech, Music and Hearing, KTH Royal Institute of Technology, Stockholm, Sweden"],"affiliations":[{"raw_affiliation_string":"Department of Speech, Music and Hearing, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5058317136"],"corresponding_institution_ids":["https://openalex.org/I86987016"],"apc_list":null,"apc_paid":null,"fwci":0.6483,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.63135947,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"2","issue":null,"first_page":"I","last_page":"337"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"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"}},"topics":[{"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/T10901","display_name":"Advanced Data Compression Techniques","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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":0.9987999796867371,"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/computer-science","display_name":"Computer science","score":0.655805230140686},{"id":"https://openalex.org/keywords/pitch-detection-algorithm","display_name":"Pitch detection algorithm","score":0.5966854095458984},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.5925258994102478},{"id":"https://openalex.org/keywords/waveform","display_name":"Waveform","score":0.5178606510162354},{"id":"https://openalex.org/keywords/fundamental-frequency","display_name":"Fundamental frequency","score":0.480633407831192},{"id":"https://openalex.org/keywords/pitch-contour","display_name":"Pitch contour","score":0.447626531124115},{"id":"https://openalex.org/keywords/speech-coding","display_name":"Speech coding","score":0.44466298818588257},{"id":"https://openalex.org/keywords/spline-interpolation","display_name":"Spline interpolation","score":0.4207918047904968},{"id":"https://openalex.org/keywords/speech-processing","display_name":"Speech processing","score":0.41799864172935486},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3461908996105194},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.19460099935531616},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.12731391191482544}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.655805230140686},{"id":"https://openalex.org/C135622632","wikidata":"https://www.wikidata.org/wiki/Q7198851","display_name":"Pitch detection algorithm","level":3,"score":0.5966854095458984},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.5925258994102478},{"id":"https://openalex.org/C197424946","wikidata":"https://www.wikidata.org/wiki/Q1165717","display_name":"Waveform","level":3,"score":0.5178606510162354},{"id":"https://openalex.org/C10513763","wikidata":"https://www.wikidata.org/wiki/Q1331774","display_name":"Fundamental frequency","level":2,"score":0.480633407831192},{"id":"https://openalex.org/C2777895490","wikidata":"https://www.wikidata.org/wiki/Q7198848","display_name":"Pitch contour","level":2,"score":0.447626531124115},{"id":"https://openalex.org/C13895895","wikidata":"https://www.wikidata.org/wiki/Q3270773","display_name":"Speech coding","level":2,"score":0.44466298818588257},{"id":"https://openalex.org/C31447003","wikidata":"https://www.wikidata.org/wiki/Q545002","display_name":"Spline interpolation","level":3,"score":0.4207918047904968},{"id":"https://openalex.org/C61328038","wikidata":"https://www.wikidata.org/wiki/Q3358061","display_name":"Speech processing","level":2,"score":0.41799864172935486},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3461908996105194},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.19460099935531616},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.12731391191482544},{"id":"https://openalex.org/C205203396","wikidata":"https://www.wikidata.org/wiki/Q612143","display_name":"Bilinear interpolation","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},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2002.5743723","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2002.5743723","pdf_url":null,"source":{"id":"https://openalex.org/S4363607879","display_name":"IEEE International Conference on Acoustics Speech and Signal Processing","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":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE International Conference on Acoustics Speech and Signal Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16","score":0.6800000071525574}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W63961696","https://openalex.org/W2050921210","https://openalex.org/W2073431334","https://openalex.org/W2108532241","https://openalex.org/W2114468438","https://openalex.org/W2119411291","https://openalex.org/W2125843575","https://openalex.org/W2136645678","https://openalex.org/W2140679070","https://openalex.org/W6602728705","https://openalex.org/W6678929681"],"related_works":["https://openalex.org/W1948499687","https://openalex.org/W2244035659","https://openalex.org/W1480158168","https://openalex.org/W1594798761","https://openalex.org/W2018784870","https://openalex.org/W2143458867","https://openalex.org/W1952698534","https://openalex.org/W2138198763","https://openalex.org/W2085041768","https://openalex.org/W2128528947"],"abstract_inverted_index":{"Pitch-synchronous":[0],"speech":[1,34,137,143],"coding":[2,18],"algorithms":[3],"can":[4],"achieve":[5],"low":[6],"bit":[7],"rates":[8],"without":[9],"compromising":[10],"the":[11,14,22,29,33,46,56,59,85,90,98,110,117,120],"quality.":[12],"However,":[13],"effectiveness":[15],"of":[16,32,50,84,89,119,136],"pitch-synchronous":[17],"depends":[19],"strongly":[20],"on":[21,114],"ability":[23],"to":[24,55,125],"estimate":[25,123],"precisely":[26],"and":[27,48,69,77,95],"reliably":[28],"fundamental":[30],"period":[31],"signal.":[35],"We":[36],"present":[37],"a":[38,64,133,146],"novel":[39],"pitch":[40,51,60],"postprocessing":[41],"method":[42,91,111],"that":[43],"significantly":[44,112],"improves":[45],"accuracy":[47],"reliability":[49],"estimation.":[52],"In":[53],"contrast":[54],"classical":[57],"schemes,":[58],"is":[61,92],"treated":[62],"as":[63],"continuous":[65],"function":[66],"in":[67],"time":[68],"amplitude.":[70],"B-Spline":[71],"signal":[72],"processing,":[73],"half":[74],"wave":[75],"rectification,":[76],"multi-stage,":[78],"multi-resolution":[79],"optimization":[80],"are":[81],"essential":[82],"parts":[83],"procedure.":[86],"The":[87,102],"performance":[88],"evaluated":[93],"objectively":[94],"subjectively":[96],"using":[97,126,139,145],"Waveform":[99],"Interpolation":[100],"coder.":[101],"objective":[103],"results":[104],"show":[105,132],"that,":[106],"for":[107],"voiced":[108],"segments,":[109],"(60%":[113],"average)":[115],"decreases":[116],"energy":[118],"unvoiced":[121],"component":[122],"compared":[124],"an":[127],"unprocessed":[128],"pitch.":[129],"Listening":[130],"tests":[131],"90%":[134],"preference":[135],"generated":[138,144],"our":[140],"postprocessor":[141],"over":[142],"conventional":[147],"method.":[148]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
