{"id":"https://openalex.org/W2028223989","doi":"https://doi.org/10.1109/rivf.2010.5633588","title":"Comparison between DFT-, FCT-, Wavelet-, and Lattice Filter-Based Noise Reduction for ASR","display_name":"Comparison between DFT-, FCT-, Wavelet-, and Lattice Filter-Based Noise Reduction for ASR","publication_year":2010,"publication_date":"2010-11-01","ids":{"openalex":"https://openalex.org/W2028223989","doi":"https://doi.org/10.1109/rivf.2010.5633588","mag":"2028223989"},"language":"en","primary_location":{"id":"doi:10.1109/rivf.2010.5633588","is_oa":false,"landing_page_url":"https://doi.org/10.1109/rivf.2010.5633588","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2010 IEEE RIVF International Conference on Computing & Communication Technologies, Research, Innovation, and Vision for the Future (RIVF)","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/A5074433345","display_name":"Erhard Rank","orcid":null},"institutions":[{"id":"https://openalex.org/I4092182","display_name":"Graz University of Technology","ror":"https://ror.org/00d7xrm67","country_code":"AT","type":"education","lineage":["https://openalex.org/I4092182"]}],"countries":["AT"],"is_corresponding":true,"raw_author_name":"Erhard Rank","raw_affiliation_strings":["SPSC-Laboratory, Graz University of Technology, Graz, Austria","SPSC-Lab., Graz Univ. of Technol., Graz, Austria"],"affiliations":[{"raw_affiliation_string":"SPSC-Laboratory, Graz University of Technology, Graz, Austria","institution_ids":["https://openalex.org/I4092182"]},{"raw_affiliation_string":"SPSC-Lab., Graz Univ. of Technol., Graz, Austria","institution_ids":["https://openalex.org/I4092182"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010847929","display_name":"Amar Al-Khayat","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Amar Al-Khayat","raw_affiliation_strings":["Philips Dictation Systems, Vienna, Austria","Philips Dictation Syst., Vienna, Austria"],"affiliations":[{"raw_affiliation_string":"Philips Dictation Systems, Vienna, Austria","institution_ids":[]},{"raw_affiliation_string":"Philips Dictation Syst., Vienna, Austria","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012795098","display_name":"Tuan Van Pham","orcid":"https://orcid.org/0000-0002-9225-0191"},"institutions":[{"id":"https://openalex.org/I4092182","display_name":"Graz University of Technology","ror":"https://ror.org/00d7xrm67","country_code":"AT","type":"education","lineage":["https://openalex.org/I4092182"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Tuan Van Pham","raw_affiliation_strings":["SPSC-Lab., Graz Univ. of Technol., Graz, Austria"],"affiliations":[{"raw_affiliation_string":"SPSC-Lab., Graz Univ. of Technol., Graz, Austria","institution_ids":["https://openalex.org/I4092182"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036064205","display_name":"Zsolt Saffer","orcid":"https://orcid.org/0000-0002-1308-2020"},"institutions":[{"id":"https://openalex.org/I1292318990","display_name":"Nuance Communications (Austria)","ror":"https://ror.org/04ggpbw68","country_code":"AT","type":"company","lineage":["https://openalex.org/I1292318990","https://openalex.org/I4210125787"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Zsolt Saffer","raw_affiliation_strings":["Nuance Communications Austria, Philips Speech Recognition Systems, Vienna, Austria","Nuance Commun. Austria, Vienna, Austria"],"affiliations":[{"raw_affiliation_string":"Nuance Communications Austria, Philips Speech Recognition Systems, Vienna, Austria","institution_ids":["https://openalex.org/I1292318990"]},{"raw_affiliation_string":"Nuance Commun. Austria, Vienna, Austria","institution_ids":["https://openalex.org/I1292318990"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006270785","display_name":"Michael Stark","orcid":"https://orcid.org/0000-0002-1481-9506"},"institutions":[{"id":"https://openalex.org/I4092182","display_name":"Graz University of Technology","ror":"https://ror.org/00d7xrm67","country_code":"AT","type":"education","lineage":["https://openalex.org/I4092182"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Michael Stark","raw_affiliation_strings":["SPSC-Laboratory, Graz University of Technology, Graz, Austria","SPSC-Lab., Graz Univ. of Technol., Graz, Austria"],"affiliations":[{"raw_affiliation_string":"SPSC-Laboratory, Graz University of Technology, Graz, Austria","institution_ids":["https://openalex.org/I4092182"]},{"raw_affiliation_string":"SPSC-Lab., Graz Univ. of Technol., Graz, Austria","institution_ids":["https://openalex.org/I4092182"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5074433345"],"corresponding_institution_ids":["https://openalex.org/I4092182"],"apc_list":null,"apc_paid":null,"fwci":0.3371,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.55680197,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"4"},"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/T10688","display_name":"Image and Signal Denoising Methods","score":0.9994000196456909,"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":0.9976999759674072,"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/lattice-phase-equaliser","display_name":"Lattice phase equaliser","score":0.6500519514083862},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6156731247901917},{"id":"https://openalex.org/keywords/discrete-wavelet-transform","display_name":"Discrete wavelet transform","score":0.605592668056488},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5447973608970642},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.5445648431777954},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.5343474745750427},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.49141228199005127},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.48607805371284485},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.46270182728767395},{"id":"https://openalex.org/keywords/lattice","display_name":"Lattice (music)","score":0.44893157482147217},{"id":"https://openalex.org/keywords/stationary-wavelet-transform","display_name":"Stationary wavelet transform","score":0.4199768900871277},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3881590664386749},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3818517029285431},{"id":"https://openalex.org/keywords/wavelet","display_name":"Wavelet","score":0.3654644191265106},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3288390040397644},{"id":"https://openalex.org/keywords/adaptive-filter","display_name":"Adaptive filter","score":0.2281053066253662},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.22473981976509094},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.13258472084999084},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.10693204402923584}],"concepts":[{"id":"https://openalex.org/C111104540","wikidata":"https://www.wikidata.org/wiki/Q1807061","display_name":"Lattice phase equaliser","level":3,"score":0.6500519514083862},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6156731247901917},{"id":"https://openalex.org/C46286280","wikidata":"https://www.wikidata.org/wiki/Q2414958","display_name":"Discrete wavelet transform","level":4,"score":0.605592668056488},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5447973608970642},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.5445648431777954},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.5343474745750427},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.49141228199005127},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.48607805371284485},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.46270182728767395},{"id":"https://openalex.org/C2781204021","wikidata":"https://www.wikidata.org/wiki/Q6497091","display_name":"Lattice (music)","level":2,"score":0.44893157482147217},{"id":"https://openalex.org/C73339587","wikidata":"https://www.wikidata.org/wiki/Q1375942","display_name":"Stationary wavelet transform","level":5,"score":0.4199768900871277},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3881590664386749},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3818517029285431},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.3654644191265106},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3288390040397644},{"id":"https://openalex.org/C102248274","wikidata":"https://www.wikidata.org/wiki/Q168388","display_name":"Adaptive filter","level":2,"score":0.2281053066253662},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.22473981976509094},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.13258472084999084},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.10693204402923584},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/rivf.2010.5633588","is_oa":false,"landing_page_url":"https://doi.org/10.1109/rivf.2010.5633588","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2010 IEEE RIVF International Conference on Computing & Communication Technologies, Research, Innovation, and Vision for the Future (RIVF)","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":12,"referenced_works":["https://openalex.org/W79317937","https://openalex.org/W156538258","https://openalex.org/W1913357572","https://openalex.org/W1989374794","https://openalex.org/W1996021349","https://openalex.org/W2057244908","https://openalex.org/W2116696053","https://openalex.org/W2118723212","https://openalex.org/W2121973264","https://openalex.org/W2128653836","https://openalex.org/W2132984323","https://openalex.org/W2154078233"],"related_works":["https://openalex.org/W2085792030","https://openalex.org/W1588899229","https://openalex.org/W1967182499","https://openalex.org/W2037009764","https://openalex.org/W2023142747","https://openalex.org/W2501033992","https://openalex.org/W2088723847","https://openalex.org/W2120966954","https://openalex.org/W3021969771","https://openalex.org/W2377605153"],"abstract_inverted_index":{"We":[0,13],"investigate":[1],"noise":[2,18,63,88,124],"reduction":[3,19,91],"(NR)":[4],"for":[5,8],"speech":[6,10],"signals":[7],"automatic":[9],"recognition":[11,136,147],"(ASR).":[12],"compare":[14],"four":[15],"transform":[16,38,43,49],"based":[17,32,57,107,133,153],"algorithms":[20,33,108],"according":[21],"to":[22,76,96,110,114,135],"their":[23],"influence":[24],"on":[25,83,118],"ASR":[26,163],"performance.":[27,148],"These":[28],"include":[29],"frequency":[30],"domain":[31],"using":[34],"the":[35,40,46,86,104,127,130,146,150,161],"discrete":[36,47],"Fourier":[37],"(DFT),":[39],"fast":[41],"chirp":[42],"(FCT),":[44],"and":[45,103,123],"wavelet":[48],"(DWT),":[50],"as":[51,53],"well":[52],"a":[54,70,90,157],"lattice":[55,105,131,151],"filter":[56,106,132,152],"algorithm.":[58],"Ten":[59],"different":[60,65,87],"types":[61],"of":[62,92,94,129,137],"with":[64],"characteristics":[66],"are":[67],"used,":[68],"covering":[69],"broad":[71],"range":[72],"from":[73],"almost":[74],"stationary":[75],"highly":[77],"non-stationary":[78],"conditions.":[79],"For":[80],"single":[81],"speakers,":[82],"average":[84,119],"over":[85,120],"types,":[89],"WER":[93,117],"up":[95,113],"5.5%":[97],"is":[98],"possible.":[99],"The":[100],"DFT,":[101],"DWT,":[102],"lead":[109],"an":[111],"improvement":[112],"2%":[115],"relative":[116],"all":[121],"speakers":[122],"types.":[125],"Moreover,":[126],"application":[128,159],"algorithm":[134,155],"noise-free":[138],"data":[139],"does":[140],"not":[141],"cause":[142],"any":[143],"degradation":[144],"in":[145,160],"Hence":[149],"NR":[154],"has":[156],"potential":[158],"real-life":[162],"systems.":[164]},"counts_by_year":[{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}