{"id":"https://openalex.org/W2050915195","doi":"https://doi.org/10.1109/icdsp.2009.5201232","title":"Modeling the unvoiced component in the canonical representation of speech","display_name":"Modeling the unvoiced component in the canonical representation of speech","publication_year":2009,"publication_date":"2009-07-01","ids":{"openalex":"https://openalex.org/W2050915195","doi":"https://doi.org/10.1109/icdsp.2009.5201232","mag":"2050915195"},"language":"en","primary_location":{"id":"doi:10.1109/icdsp.2009.5201232","is_oa":true,"landing_page_url":"https://doi.org/10.1109/icdsp.2009.5201232","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 16th International Conference on Digital Signal Processing","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/icdsp.2009.5201232","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5021252790","display_name":"Miguel Arjona Ram\u00edrez","orcid":"https://orcid.org/0000-0002-7107-0888"},"institutions":[{"id":"https://openalex.org/I17974374","display_name":"Universidade de S\u00e3o Paulo","ror":"https://ror.org/036rp1748","country_code":"BR","type":"education","lineage":["https://openalex.org/I17974374"]}],"countries":["BR"],"is_corresponding":true,"raw_author_name":"Miguel Arjona Ramirez","raw_affiliation_strings":["Escola Polit\u00e9cnica,  PSI, University of S\u00e3o Paulo, Sao Paulo, Brazil","University of S\u00e3o Paulo, Escola Polit\u00e8cnica, PSI, 05508-970, Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Escola Polit\u00e9cnica,  PSI, University of S\u00e3o Paulo, Sao Paulo, Brazil","institution_ids":["https://openalex.org/I17974374"]},{"raw_affiliation_string":"University of S\u00e3o Paulo, Escola Polit\u00e8cnica, PSI, 05508-970, Brazil","institution_ids":["https://openalex.org/I17974374"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5021252790"],"corresponding_institution_ids":["https://openalex.org/I17974374"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.09447514,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"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"}},"topics":[{"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/T10688","display_name":"Image and Signal Denoising Methods","score":0.9973000288009644,"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/T11309","display_name":"Music and Audio Processing","score":0.9926000237464905,"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/representation","display_name":"Representation (politics)","score":0.6266225576400757},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.6253759860992432},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5958272218704224},{"id":"https://openalex.org/keywords/autoregressive-model","display_name":"Autoregressive model","score":0.577166736125946},{"id":"https://openalex.org/keywords/wideband","display_name":"Wideband","score":0.48340001702308655},{"id":"https://openalex.org/keywords/time\u2013frequency-analysis","display_name":"Time\u2013frequency analysis","score":0.48022204637527466},{"id":"https://openalex.org/keywords/cluster-analysis","display_name":"Cluster analysis","score":0.46697044372558594},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.44563037157058716},{"id":"https://openalex.org/keywords/frequency-domain","display_name":"Frequency domain","score":0.4224146008491516},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3208005428314209},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.25390076637268066},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.10097721219062805},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.08470016717910767},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.08181974291801453},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.07453596591949463}],"concepts":[{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.6266225576400757},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.6253759860992432},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5958272218704224},{"id":"https://openalex.org/C159877910","wikidata":"https://www.wikidata.org/wiki/Q2202883","display_name":"Autoregressive model","level":2,"score":0.577166736125946},{"id":"https://openalex.org/C2780202535","wikidata":"https://www.wikidata.org/wiki/Q4524457","display_name":"Wideband","level":2,"score":0.48340001702308655},{"id":"https://openalex.org/C142433447","wikidata":"https://www.wikidata.org/wiki/Q7806653","display_name":"Time\u2013frequency analysis","level":3,"score":0.48022204637527466},{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.46697044372558594},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.44563037157058716},{"id":"https://openalex.org/C19118579","wikidata":"https://www.wikidata.org/wiki/Q786423","display_name":"Frequency domain","level":2,"score":0.4224146008491516},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3208005428314209},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.25390076637268066},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.10097721219062805},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.08470016717910767},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.08181974291801453},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.07453596591949463},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"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/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","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/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/icdsp.2009.5201232","is_oa":true,"landing_page_url":"https://doi.org/10.1109/icdsp.2009.5201232","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 16th International Conference on Digital Signal Processing","raw_type":"proceedings-article"},{"id":"pmh:oai:www.producao.usp.br:BDPI/18638","is_oa":false,"landing_page_url":"http://producao.usp.br/handle/BDPI/18638","pdf_url":null,"source":{"id":"https://openalex.org/S4306401373","display_name":"Scientific Electronic Library Online (S\u00e3o Paulo Research Foundation, Latin American and Caribbean Center on Health Sciences Information, Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I2982035970","host_organization_name":"Costa Rican Department of Social Security","host_organization_lineage":["https://openalex.org/I2982035970"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/icdsp.2009.5201232","is_oa":true,"landing_page_url":"https://doi.org/10.1109/icdsp.2009.5201232","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 16th International Conference on Digital Signal Processing","raw_type":"proceedings-article"},"sustainable_development_goals":[{"score":0.47999998927116394,"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1550812549","https://openalex.org/W1557133539","https://openalex.org/W2027735369","https://openalex.org/W2030757453","https://openalex.org/W2088432713","https://openalex.org/W2109114466","https://openalex.org/W2114468438","https://openalex.org/W2128615421","https://openalex.org/W2132359933"],"related_works":["https://openalex.org/W3112081258","https://openalex.org/W1480343695","https://openalex.org/W2171218219","https://openalex.org/W1972271943","https://openalex.org/W2150410159","https://openalex.org/W1947057263","https://openalex.org/W2355447608","https://openalex.org/W1980067354","https://openalex.org/W1978333447","https://openalex.org/W2033324903"],"abstract_inverted_index":{"The":[0,84],"canonical":[1],"representation":[2,95,104],"of":[3,29,38,74],"speech":[4,89],"constitutes":[5],"a":[6],"perfect":[7],"reconstruction":[8],"(PR)":[9],"analysis-synthesis":[10],"system.":[11],"Its":[12],"parameters":[13,39],"are":[14],"the":[15,20,24,30,72,80,92],"autoregressive":[16],"(AR)":[17],"model":[18,50,86],"coefficients,":[19],"pitch":[21],"period":[22],"and":[23,26,58],"voiced":[25],"unvoiced":[27,47,93],"components":[28],"excitation":[31,48,94],"represented":[32],"as":[33],"transform":[34,76,82,102],"coefficients.":[35],"Each":[36],"set":[37],"may":[40],"be":[41],"operated":[42],"on":[43],"independently.":[44],"A":[45],"time-frequency":[46,63],"(TFUNEX)":[49],"is":[51,65],"proposed":[52],"that":[53],"has":[54],"high":[55],"time":[56],"resolution":[57],"selective":[59],"frequency":[60],"resolution.":[61],"Improved":[62],"fit":[64],"obtained":[66],"by":[67],"using":[68],"for":[69,105],"antialiasing":[70],"cancellation":[71],"clustering":[73],"pitch-synchronous":[75],"tracks":[77],"defined":[78],"in":[79],"modulation":[81],"domain.":[83],"TFUNEX":[85],"delivers":[87],"high-quality":[88],"while":[90],"compressing":[91],"about":[96],"13":[97],"times":[98],"over":[99],"its":[100],"raw":[101],"coefficient":[103],"wideband":[106],"speech.":[107]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}