{"id":"https://openalex.org/W2126495382","doi":"https://doi.org/10.1109/icassp.2004.1326024","title":"Combined estimation/coding of highband spectral envelopes for speech spectrum expansion","display_name":"Combined estimation/coding of highband spectral envelopes for speech spectrum expansion","publication_year":2004,"publication_date":"2004-09-28","ids":{"openalex":"https://openalex.org/W2126495382","doi":"https://doi.org/10.1109/icassp.2004.1326024","mag":"2126495382"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2004.1326024","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2004.1326024","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2004 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/A5024140675","display_name":"Yannis Agiomyrgiannakis","orcid":null},"institutions":[{"id":"https://openalex.org/I8901234","display_name":"Foundation for Research and Technology Hellas","ror":"https://ror.org/052rphn09","country_code":"GR","type":"facility","lineage":["https://openalex.org/I8901234"]}],"countries":["GR"],"is_corresponding":true,"raw_author_name":"Y. Agiomyrgiannakis","raw_affiliation_strings":["Foundation of Research & Technology Hellas, Institute for Computer Science, Crete, Greece","Inst. of Comput. Sci., Found. of Res. & Technol. Hellas, Heraklion, Greece"],"affiliations":[{"raw_affiliation_string":"Foundation of Research & Technology Hellas, Institute for Computer Science, Crete, Greece","institution_ids":["https://openalex.org/I8901234"]},{"raw_affiliation_string":"Inst. of Comput. Sci., Found. of Res. & Technol. Hellas, Heraklion, Greece","institution_ids":["https://openalex.org/I8901234"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035745788","display_name":"Yannis Stylianou","orcid":null},"institutions":[{"id":"https://openalex.org/I8901234","display_name":"Foundation for Research and Technology Hellas","ror":"https://ror.org/052rphn09","country_code":"GR","type":"facility","lineage":["https://openalex.org/I8901234"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Y. Stylianou","raw_affiliation_strings":["Foundation of Research & Technology Hellas, Institute for Computer Science, Crete, Greece","Inst. of Comput. Sci., Found. of Res. & Technol. Hellas, Heraklion, Greece"],"affiliations":[{"raw_affiliation_string":"Foundation of Research & Technology Hellas, Institute for Computer Science, Crete, Greece","institution_ids":["https://openalex.org/I8901234"]},{"raw_affiliation_string":"Inst. of Comput. Sci., Found. of Res. & Technol. Hellas, Heraklion, Greece","institution_ids":["https://openalex.org/I8901234"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5024140675"],"corresponding_institution_ids":["https://openalex.org/I8901234"],"apc_list":null,"apc_paid":null,"fwci":2.8043,"has_fulltext":false,"cited_by_count":17,"citation_normalized_percentile":{"value":0.90917916,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"1","issue":null,"first_page":"I","last_page":"469"},"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":0.9993000030517578,"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":0.9954000115394592,"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/spectral-envelope","display_name":"Spectral envelope","score":0.9049738645553589},{"id":"https://openalex.org/keywords/narrowband","display_name":"Narrowband","score":0.8988099098205566},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.6534737944602966},{"id":"https://openalex.org/keywords/timit","display_name":"TIMIT","score":0.6333637237548828},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5739568471908569},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.5273309946060181},{"id":"https://openalex.org/keywords/spectral-shape-analysis","display_name":"Spectral shape analysis","score":0.43332284688949585},{"id":"https://openalex.org/keywords/bandwidth-extension","display_name":"Bandwidth extension","score":0.4300290644168854},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.42327573895454407},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.4173920750617981},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.4168529808521271},{"id":"https://openalex.org/keywords/speech-coding","display_name":"Speech coding","score":0.41230297088623047},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3399962782859802},{"id":"https://openalex.org/keywords/spectral-line","display_name":"Spectral line","score":0.21417155861854553},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.20841577649116516},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.1895187795162201},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.1483759880065918},{"id":"https://openalex.org/keywords/hidden-markov-model","display_name":"Hidden Markov model","score":0.13663730025291443},{"id":"https://openalex.org/keywords/audio-signal","display_name":"Audio signal","score":0.10190778970718384}],"concepts":[{"id":"https://openalex.org/C54926389","wikidata":"https://www.wikidata.org/wiki/Q7575188","display_name":"Spectral envelope","level":2,"score":0.9049738645553589},{"id":"https://openalex.org/C2776096036","wikidata":"https://www.wikidata.org/wiki/Q1140483","display_name":"Narrowband","level":2,"score":0.8988099098205566},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.6534737944602966},{"id":"https://openalex.org/C2778724510","wikidata":"https://www.wikidata.org/wiki/Q7670405","display_name":"TIMIT","level":3,"score":0.6333637237548828},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5739568471908569},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.5273309946060181},{"id":"https://openalex.org/C152822103","wikidata":"https://www.wikidata.org/wiki/Q7575207","display_name":"Spectral shape analysis","level":3,"score":0.43332284688949585},{"id":"https://openalex.org/C9387945","wikidata":"https://www.wikidata.org/wiki/Q4854770","display_name":"Bandwidth extension","level":4,"score":0.4300290644168854},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.42327573895454407},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.4173920750617981},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.4168529808521271},{"id":"https://openalex.org/C13895895","wikidata":"https://www.wikidata.org/wiki/Q3270773","display_name":"Speech coding","level":2,"score":0.41230297088623047},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3399962782859802},{"id":"https://openalex.org/C4839761","wikidata":"https://www.wikidata.org/wiki/Q212111","display_name":"Spectral line","level":2,"score":0.21417155861854553},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.20841577649116516},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1895187795162201},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.1483759880065918},{"id":"https://openalex.org/C23224414","wikidata":"https://www.wikidata.org/wiki/Q176769","display_name":"Hidden Markov model","level":2,"score":0.13663730025291443},{"id":"https://openalex.org/C64922751","wikidata":"https://www.wikidata.org/wiki/Q4650799","display_name":"Audio signal","level":3,"score":0.10190778970718384},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2004.1326024","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2004.1326024","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2004 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":0.5600000023841858}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W92360821","https://openalex.org/W106981560","https://openalex.org/W1496562625","https://openalex.org/W1522137499","https://openalex.org/W1828370124","https://openalex.org/W1842993898","https://openalex.org/W1887401733","https://openalex.org/W2097900379","https://openalex.org/W2099111195","https://openalex.org/W2101584668","https://openalex.org/W2108688353","https://openalex.org/W2135567392","https://openalex.org/W2147152002","https://openalex.org/W2154849284","https://openalex.org/W2156142001","https://openalex.org/W2414806046","https://openalex.org/W3003278325","https://openalex.org/W4285719527","https://openalex.org/W6603724186","https://openalex.org/W6638807510","https://openalex.org/W6682013673"],"related_works":["https://openalex.org/W1966027647","https://openalex.org/W2383072803","https://openalex.org/W2128165264","https://openalex.org/W2202235755","https://openalex.org/W2024980238","https://openalex.org/W2011561032","https://openalex.org/W2536224642","https://openalex.org/W1485754833","https://openalex.org/W2105207127","https://openalex.org/W2534453387"],"abstract_inverted_index":{"The":[0],"paper":[1],"addresses":[2],"the":[3,7,15,33,58,85,93,122],"problem":[4],"of":[5,9,17,106,112,118,128],"expanding":[6],"bandwidth":[8],"narrowband":[10,42],"speech":[11],"signals,":[12],"focusing":[13],"on":[14],"estimation":[16,117],"highband":[18,50,73,94,119],"spectral":[19,43,51,60,95],"envelopes.":[20,52],"It":[21],"is":[22,27,62,78,109],"well":[23],"known":[24],"that":[25,38,76,89],"there":[26,77],"not":[28],"enough":[29],"mutual":[30],"information":[31],"between":[32],"two":[34],"bands.":[35],"We":[36],"show":[37],"this":[39,66],"happens":[40],"because":[41],"envelopes":[44,120],"have":[45],"a":[46,70,100,115],"one-to-many":[47],"relationship":[48,67],"with":[49],"A":[53],"combined":[54],"estimation/coding":[55],"scheme":[56],"for":[57,92,99],"missing":[59],"envelope":[61,96],"proposed,":[63],"which":[64],"employs":[65],"to":[68],"produce":[69],"high":[71],"quality":[72],"reconstruction,":[74],"provided":[75],"an":[79,110],"appropriate":[80],"excitation.":[81],"Subjective":[82],"tests":[83],"using":[84,121],"TIMIT":[86],"database":[87],"indicate":[88],"134":[90],"bits/sec":[91],"are":[97],"adequate":[98],"DCR":[101,129],"(degradation":[102],"category":[103],"rating)":[104],"score":[105],"4.41.":[107],"This":[108],"improvement":[111],"22.8%":[113],"over":[114],"typical":[116],"usual":[123],"mapping":[124],"functions,":[125],"in":[126],"terms":[127],"score.":[130]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}