{"id":"https://openalex.org/W2130954801","doi":"https://doi.org/10.1109/icassp.2004.1327237","title":"A semi-continuous state transition probability HMM-based voice activity detection","display_name":"A semi-continuous state transition probability HMM-based voice activity detection","publication_year":2004,"publication_date":"2004-09-28","ids":{"openalex":"https://openalex.org/W2130954801","doi":"https://doi.org/10.1109/icassp.2004.1327237","mag":"2130954801"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2004.1327237","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2004.1327237","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":"conference-paper","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/A5014314463","display_name":"Hisham Othman","orcid":null},"institutions":[{"id":"https://openalex.org/I153718931","display_name":"University of Ottawa","ror":"https://ror.org/03c4mmv16","country_code":"CA","type":"education","lineage":["https://openalex.org/I153718931"]},{"id":"https://openalex.org/I9374425","display_name":"Ottawa University","ror":"https://ror.org/04jscf286","country_code":"US","type":"education","lineage":["https://openalex.org/I9374425"]}],"countries":["CA","US"],"is_corresponding":false,"raw_author_name":"H. Othman","raw_affiliation_strings":["School of Information Technology and Engineering, University of Ottawa, Canada","University of Ottawa Faculty of Medicine, Ottawa, ON, CA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Information Technology and Engineering, University of Ottawa, Canada","institution_ids":["https://openalex.org/I153718931"]},{"raw_affiliation_string":"University of Ottawa Faculty of Medicine, Ottawa, ON, CA","institution_ids":["https://openalex.org/I9374425"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5014750327","display_name":"T. Abounasr","orcid":null},"institutions":[{"id":"https://openalex.org/I153718931","display_name":"University of Ottawa","ror":"https://ror.org/03c4mmv16","country_code":"CA","type":"education","lineage":["https://openalex.org/I153718931"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"T. Abounasr","raw_affiliation_strings":["Sch. of Inf. Technol. & Eng., Univ. of Ottawa, Ont., Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sch. of Inf. Technol. & Eng., Univ. of Ottawa, Ont., Canada","institution_ids":["https://openalex.org/I153718931"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.2594,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.46762303,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"5","issue":null,"first_page":"V","last_page":"821"},"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":0.9968000054359436,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9966999888420105,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/hidden-markov-model","display_name":"Hidden Markov model","score":0.8252986669540405},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6991864442825317},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.6233199834823608},{"id":"https://openalex.org/keywords/clipping","display_name":"Clipping (morphology)","score":0.518439531326294},{"id":"https://openalex.org/keywords/voice-activity-detection","display_name":"Voice activity detection","score":0.5178263783454895},{"id":"https://openalex.org/keywords/markov-chain","display_name":"Markov chain","score":0.5020537376403809},{"id":"https://openalex.org/keywords/state","display_name":"State (computer science)","score":0.49595531821250916},{"id":"https://openalex.org/keywords/feature-extraction","display_name":"Feature extraction","score":0.45775991678237915},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.44651639461517334},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.4435352385044098},{"id":"https://openalex.org/keywords/forward-algorithm","display_name":"Forward algorithm","score":0.4184423089027405},{"id":"https://openalex.org/keywords/transition","display_name":"Transition (genetics)","score":0.4149007201194763},{"id":"https://openalex.org/keywords/markov-process","display_name":"Markov process","score":0.414650022983551},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.4011080861091614},{"id":"https://openalex.org/keywords/markov-model","display_name":"Markov model","score":0.3982023596763611},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3117150664329529},{"id":"https://openalex.org/keywords/speech-processing","display_name":"Speech processing","score":0.19290941953659058},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.183467298746109},{"id":"https://openalex.org/keywords/variable-order-markov-model","display_name":"Variable-order Markov model","score":0.18035155534744263},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.1324012279510498},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.12162327766418457}],"concepts":[{"id":"https://openalex.org/C23224414","wikidata":"https://www.wikidata.org/wiki/Q176769","display_name":"Hidden Markov model","level":2,"score":0.8252986669540405},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6991864442825317},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.6233199834823608},{"id":"https://openalex.org/C2776848632","wikidata":"https://www.wikidata.org/wiki/Q853463","display_name":"Clipping (morphology)","level":2,"score":0.518439531326294},{"id":"https://openalex.org/C204201278","wikidata":"https://www.wikidata.org/wiki/Q1332614","display_name":"Voice activity detection","level":3,"score":0.5178263783454895},{"id":"https://openalex.org/C98763669","wikidata":"https://www.wikidata.org/wiki/Q176645","display_name":"Markov chain","level":2,"score":0.5020537376403809},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.49595531821250916},{"id":"https://openalex.org/C52622490","wikidata":"https://www.wikidata.org/wiki/Q1026626","display_name":"Feature extraction","level":2,"score":0.45775991678237915},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.44651639461517334},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.4435352385044098},{"id":"https://openalex.org/C196455857","wikidata":"https://www.wikidata.org/wiki/Q5473264","display_name":"Forward algorithm","level":5,"score":0.4184423089027405},{"id":"https://openalex.org/C194232998","wikidata":"https://www.wikidata.org/wiki/Q1606712","display_name":"Transition (genetics)","level":3,"score":0.4149007201194763},{"id":"https://openalex.org/C159886148","wikidata":"https://www.wikidata.org/wiki/Q176645","display_name":"Markov process","level":2,"score":0.414650022983551},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.4011080861091614},{"id":"https://openalex.org/C163836022","wikidata":"https://www.wikidata.org/wiki/Q6771326","display_name":"Markov model","level":3,"score":0.3982023596763611},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3117150664329529},{"id":"https://openalex.org/C61328038","wikidata":"https://www.wikidata.org/wiki/Q3358061","display_name":"Speech processing","level":2,"score":0.19290941953659058},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.183467298746109},{"id":"https://openalex.org/C54907487","wikidata":"https://www.wikidata.org/wiki/Q7915688","display_name":"Variable-order Markov model","level":4,"score":0.18035155534744263},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.1324012279510498},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.12162327766418457},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2004.1327237","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2004.1327237","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":[{"score":0.7900000214576721,"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1531203255","https://openalex.org/W1594230190","https://openalex.org/W1735903278","https://openalex.org/W2061879551","https://openalex.org/W2099145922","https://openalex.org/W2100555417","https://openalex.org/W2119564743","https://openalex.org/W2129120544","https://openalex.org/W2149053750","https://openalex.org/W2156038773","https://openalex.org/W2170644918","https://openalex.org/W2171748469","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W1510894296","https://openalex.org/W2116722627","https://openalex.org/W3044198794","https://openalex.org/W2379938888","https://openalex.org/W2134386692","https://openalex.org/W2792905593","https://openalex.org/W2176285001","https://openalex.org/W4246505579","https://openalex.org/W2103649304","https://openalex.org/W2537260108"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3],"introduce":[4],"an":[5,30],"efficient":[6],"hidden":[7],"Markov":[8,23],"model-based":[9],"voice":[10],"activity":[11],"detection":[12,80],"(VAD)":[13],"algorithm":[14,64],"with":[15,38,55,87],"time-variant":[16],"state":[17,39],"transition":[18,26],"probabilities":[19,27],"in":[20,29,48],"the":[21,49,62],"underlying":[22],"chain.":[24],"The":[25,82],"vary":[28],"exponential":[31],"charge/discharge":[32],"scheme":[33],"and":[34,78],"are":[35],"softly":[36],"merged":[37],"conditional":[40],"likelihood":[41],"into":[42],"a":[43,73],"final":[44],"VAD":[45,70],"decision.":[46],"Working":[47],"domain":[50],"of":[51],"ITU-T":[52],"G.729":[53,67],"parameters,":[54],"no":[56],"additional":[57],"cost":[58],"for":[59],"feature":[60],"extraction,":[61],"proposed":[63],"significantly":[65],"outperforms":[66],"Annex":[68],"B":[69],"while":[71],"providing":[72],"balanced":[74],"tradeoff":[75],"between":[76],"clipping":[77],"false":[79],"errors.":[81],"performance":[83],"compares":[84],"very":[85],"favorably":[86],"adaptive":[88],"multirate":[89],"VAD,":[90],"phase":[91],"2":[92],"(AMR2).":[93]},"counts_by_year":[{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}