{"id":"https://openalex.org/W154898858","doi":"https://doi.org/10.21437/eurospeech.2001-438","title":"An improved wavelet-based speech enhancement system","display_name":"An improved wavelet-based speech enhancement system","publication_year":2001,"publication_date":"2001-09-03","ids":{"openalex":"https://openalex.org/W154898858","doi":"https://doi.org/10.21437/eurospeech.2001-438","mag":"154898858"},"language":"en","primary_location":{"id":"doi:10.21437/eurospeech.2001-438","is_oa":false,"landing_page_url":"https://doi.org/10.21437/eurospeech.2001-438","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"7th European Conference on Speech Communication and Technology (Eurospeech 2001)","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/A5090489682","display_name":"Hamid Sheikhzadeh","orcid":"https://orcid.org/0000-0002-9262-4165"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hamid Sheikhzadeh","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5027512330","display_name":"Hamid Reza Abutalebi","orcid":"https://orcid.org/0000-0002-1408-5637"},"institutions":[{"id":"https://openalex.org/I116943215","display_name":"Dr. A.P.J. Abdul Kalam Technical University","ror":"https://ror.org/03h56sg55","country_code":"IN","type":"education","lineage":["https://openalex.org/I116943215"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Hamid Reza Abutalebi","raw_affiliation_strings":["Dr. A. P. J. Abdul, Kalam Technical University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dr. A. P. J. Abdul, Kalam Technical University","institution_ids":["https://openalex.org/I116943215"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.507,"has_fulltext":false,"cited_by_count":75,"citation_normalized_percentile":{"value":0.88377833,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"1855","last_page":"1858"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":1.0,"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":1.0,"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/T11233","display_name":"Advanced Adaptive Filtering Techniques","score":0.9987000226974487,"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"}},{"id":"https://openalex.org/T11447","display_name":"Blind Source Separation Techniques","score":0.9980999827384949,"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/wavelet","display_name":"Wavelet","score":0.8258599638938904},{"id":"https://openalex.org/keywords/thresholding","display_name":"Thresholding","score":0.7513201236724854},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7378831505775452},{"id":"https://openalex.org/keywords/speech-enhancement","display_name":"Speech enhancement","score":0.6963573098182678},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.5705285668373108},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5411997437477112},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.5323745608329773},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.5017118453979492},{"id":"https://openalex.org/keywords/wavelet-packet-decomposition","display_name":"Wavelet packet decomposition","score":0.4720374345779419},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.46765416860580444},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.27123698592185974},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.1168457567691803}],"concepts":[{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.8258599638938904},{"id":"https://openalex.org/C191178318","wikidata":"https://www.wikidata.org/wiki/Q2256906","display_name":"Thresholding","level":3,"score":0.7513201236724854},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7378831505775452},{"id":"https://openalex.org/C2776182073","wikidata":"https://www.wikidata.org/wiki/Q7575395","display_name":"Speech enhancement","level":3,"score":0.6963573098182678},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.5705285668373108},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5411997437477112},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.5323745608329773},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.5017118453979492},{"id":"https://openalex.org/C155777637","wikidata":"https://www.wikidata.org/wiki/Q2736187","display_name":"Wavelet packet decomposition","level":4,"score":0.4720374345779419},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.46765416860580444},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.27123698592185974},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.1168457567691803}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.21437/eurospeech.2001-438","is_oa":false,"landing_page_url":"https://doi.org/10.21437/eurospeech.2001-438","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"7th European Conference on Speech Communication and Technology (Eurospeech 2001)","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.10.14","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.10.14","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.dspfactory.com/technology/../pdf/Wavelet_based_speech_enhancement_system.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W25676668","https://openalex.org/W2096779346","https://openalex.org/W2130202579","https://openalex.org/W2146842127","https://openalex.org/W2154489901","https://openalex.org/W2158940042","https://openalex.org/W2167090878"],"related_works":["https://openalex.org/W4245508182","https://openalex.org/W4233511069","https://openalex.org/W2046633342","https://openalex.org/W2370050053","https://openalex.org/W2372936409","https://openalex.org/W53954450","https://openalex.org/W2365287829","https://openalex.org/W2389645710","https://openalex.org/W2379553594","https://openalex.org/W2351059076"],"abstract_inverted_index":{"The":[0],"problem":[1],"of":[2,33,83],"speech":[3],"enhancement":[4,60,85],"using":[5],"wavelet":[6,38,118],"thresholding":[7,119],"algorithm":[8,17],"is":[9,49,73],"considered.":[10],"Major":[11],"problems":[12],"in":[13],"applying":[14],"the":[15,26,31,52,58,81,84,89,111,115,117],"basic":[16],"are":[18,22,54],"discussed":[19],"and":[20,51,65,75,102,106],"modifications":[21],"proposed":[23,74,112],"to":[24,62],"improve":[25,80],"method.":[27],"First,":[28],"we":[29,92],"propose":[30],"use":[32],"different":[34,37],"thresholds":[35,53],"for":[36],"bands.":[39],"Next,":[40],"by":[41],"employing":[42],"a":[43,69],"pause":[44],"detection":[45],"algorithm,":[46],"noise":[47,96],"profile":[48],"estimated":[50],"adapted.":[55],"This":[56],"enables":[57],"modified":[59],"system":[61,90,113],"handle":[63],"colored":[64],"nonstationary":[66],"noises.":[67,104],"Finally,":[68],"wavelet-based":[70],"voiced/unvoiced":[71],"classification":[72],"implemented":[76],"that":[77,110],"can":[78],"further":[79],"performance":[82,116],"system.":[86],"To":[87],"evaluate":[88],"performance,":[91],"have":[93],"used":[94],"real-life":[95],"types":[97],"such":[98],"as":[99],"multi-talker":[100],"babble":[101],"low-pass":[103],"Subjective":[105],"objective":[107],"evaluations":[108],"show":[109],"improves":[114],"algorithm.":[120]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":3},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":5},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":7}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
