{"id":"https://openalex.org/W2330635026","doi":"https://doi.org/10.1109/ictc.2014.6983325","title":"MDCT domain postfiltering for speech quality enhancement","display_name":"MDCT domain postfiltering for speech quality enhancement","publication_year":2014,"publication_date":"2014-10-01","ids":{"openalex":"https://openalex.org/W2330635026","doi":"https://doi.org/10.1109/ictc.2014.6983325","mag":"2330635026"},"language":"en","primary_location":{"id":"doi:10.1109/ictc.2014.6983325","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ictc.2014.6983325","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 International Conference on Information and Communication Technology Convergence (ICTC)","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/A5100330192","display_name":"Hyun Woo Kim","orcid":"https://orcid.org/0000-0002-2160-0625"},"institutions":[{"id":"https://openalex.org/I142401562","display_name":"Electronics and Telecommunications Research Institute","ror":"https://ror.org/03ysstz10","country_code":"KR","type":"facility","lineage":["https://openalex.org/I142401562","https://openalex.org/I2801339556","https://openalex.org/I4210144908","https://openalex.org/I4387152098"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Hyun Woo Kim","raw_affiliation_strings":["Spoken Language Processing Research Section, Electronics and Telecommunications Research Institute, Daejeon, Republic of Korea"],"affiliations":[{"raw_affiliation_string":"Spoken Language Processing Research Section, Electronics and Telecommunications Research Institute, Daejeon, Republic of Korea","institution_ids":["https://openalex.org/I142401562"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5018471640","display_name":"Jeon Gyu Park","orcid":null},"institutions":[{"id":"https://openalex.org/I142401562","display_name":"Electronics and Telecommunications Research Institute","ror":"https://ror.org/03ysstz10","country_code":"KR","type":"facility","lineage":["https://openalex.org/I142401562","https://openalex.org/I2801339556","https://openalex.org/I4210144908","https://openalex.org/I4387152098"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jeon Gyu Park","raw_affiliation_strings":["Spoken Language Processing Research Section, Electronics and Telecommunications Research Institute, Daejeon, Republic of Korea"],"affiliations":[{"raw_affiliation_string":"Spoken Language Processing Research Section, Electronics and Telecommunications Research Institute, Daejeon, Republic of Korea","institution_ids":["https://openalex.org/I142401562"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5100330192"],"corresponding_institution_ids":["https://openalex.org/I142401562"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.23414352,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"10","issue":null,"first_page":"892","last_page":"894"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9944000244140625,"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":0.9944000244140625,"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":0.9944000244140625,"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/T10201","display_name":"Speech Recognition and Synthesis","score":0.9682000279426575,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/smoothing","display_name":"Smoothing","score":0.7547801733016968},{"id":"https://openalex.org/keywords/spectral-envelope","display_name":"Spectral envelope","score":0.7124197483062744},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.646306037902832},{"id":"https://openalex.org/keywords/maxima-and-minima","display_name":"Maxima and minima","score":0.6203674077987671},{"id":"https://openalex.org/keywords/residual","display_name":"Residual","score":0.6121556758880615},{"id":"https://openalex.org/keywords/interpolation","display_name":"Interpolation (computer graphics)","score":0.6057298183441162},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.588085412979126},{"id":"https://openalex.org/keywords/envelope","display_name":"Envelope (radar)","score":0.5152445435523987},{"id":"https://openalex.org/keywords/term","display_name":"Term (time)","score":0.46671172976493835},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.46518081426620483},{"id":"https://openalex.org/keywords/spectrum","display_name":"Spectrum (functional analysis)","score":0.45019131898880005},{"id":"https://openalex.org/keywords/speech-enhancement","display_name":"Speech enhancement","score":0.4439815580844879},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.43298518657684326},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.2783547043800354},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2782347798347473},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.15192395448684692},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.09673580527305603},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09596151113510132},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.07907065749168396},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.06022670865058899}],"concepts":[{"id":"https://openalex.org/C3770464","wikidata":"https://www.wikidata.org/wiki/Q775963","display_name":"Smoothing","level":2,"score":0.7547801733016968},{"id":"https://openalex.org/C54926389","wikidata":"https://www.wikidata.org/wiki/Q7575188","display_name":"Spectral envelope","level":2,"score":0.7124197483062744},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.646306037902832},{"id":"https://openalex.org/C186633575","wikidata":"https://www.wikidata.org/wiki/Q845060","display_name":"Maxima and minima","level":2,"score":0.6203674077987671},{"id":"https://openalex.org/C155512373","wikidata":"https://www.wikidata.org/wiki/Q287450","display_name":"Residual","level":2,"score":0.6121556758880615},{"id":"https://openalex.org/C137800194","wikidata":"https://www.wikidata.org/wiki/Q11713455","display_name":"Interpolation (computer graphics)","level":3,"score":0.6057298183441162},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.588085412979126},{"id":"https://openalex.org/C65155139","wikidata":"https://www.wikidata.org/wiki/Q5380912","display_name":"Envelope (radar)","level":3,"score":0.5152445435523987},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.46671172976493835},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.46518081426620483},{"id":"https://openalex.org/C156778621","wikidata":"https://www.wikidata.org/wiki/Q1365748","display_name":"Spectrum (functional analysis)","level":2,"score":0.45019131898880005},{"id":"https://openalex.org/C2776182073","wikidata":"https://www.wikidata.org/wiki/Q7575395","display_name":"Speech enhancement","level":3,"score":0.4439815580844879},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.43298518657684326},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2783547043800354},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2782347798347473},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.15192395448684692},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.09673580527305603},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09596151113510132},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.07907065749168396},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.06022670865058899},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","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/C104114177","wikidata":"https://www.wikidata.org/wiki/Q79782","display_name":"Motion (physics)","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/ictc.2014.6983325","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ictc.2014.6983325","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 International Conference on Information and Communication Technology Convergence (ICTC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W2098121419","https://openalex.org/W2126441393","https://openalex.org/W2131094339","https://openalex.org/W2151626637","https://openalex.org/W2155835612"],"related_works":["https://openalex.org/W2535081697","https://openalex.org/W254868496","https://openalex.org/W2073905179","https://openalex.org/W2928432034","https://openalex.org/W4200277070","https://openalex.org/W1989331194","https://openalex.org/W4300740495","https://openalex.org/W1969398023","https://openalex.org/W2323643941","https://openalex.org/W1998822346"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,39],"propose":[4],"a":[5,64,90],"MDCT":[6,30,48,74,94],"domain":[7],"postfilter":[8,46,53,80],"to":[9,34],"suppress":[10],"the":[11,42,58,73,78,85,93,102,106],"noise":[12,20],"in":[13,21],"speech":[14,22,37],"spectral":[15,23],"valleys":[16,28],"and":[17,27,44,97],"allow":[18],"more":[19],"peaks.":[24],"Since":[25],"peaks":[26],"of":[29,36,72],"coefficients":[31],"don't":[32],"correspond":[33],"those":[35],"spectrum,":[38],"construct":[40],"both":[41],"short-term":[43,52],"long-term":[45,79],"using":[47],"pseudo":[49,75,95],"spectrum.":[50,76],"The":[51],"is":[54,61,81,89],"induced":[55],"by":[56,63,83],"smoothing":[57,84],"envelope":[59],"that":[60,88,101],"obtained":[62],"piece-wise":[65],"linear":[66],"interpolation":[67],"between":[68,92],"consecutive":[69],"local":[70],"minima":[71],"And":[77],"generated":[82],"residual":[86],"spectrum":[87,96],"difference":[91],"envelope.":[98],"Experiments":[99],"show":[100],"proposed":[103],"method":[104],"outperforms":[105],"G.729.1":[107],"postfilter.":[108]},"counts_by_year":[{"year":2018,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}