{"id":"https://openalex.org/W2113178401","doi":"https://doi.org/10.1109/tcom.1981.1095061","title":"A Voiceband Codec with Digital Filtering","display_name":"A Voiceband Codec with Digital Filtering","publication_year":1981,"publication_date":"1981-06-01","ids":{"openalex":"https://openalex.org/W2113178401","doi":"https://doi.org/10.1109/tcom.1981.1095061","mag":"2113178401"},"language":"en","primary_location":{"id":"doi:10.1109/tcom.1981.1095061","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcom.1981.1095061","pdf_url":null,"source":{"id":"https://openalex.org/S4210170832","display_name":"IRE Transactions on Communications Systems","issn_l":"0096-2244","issn":["0096-2244","2162-2132"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Communications","raw_type":"journal-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/A5078089890","display_name":"James C. Candy","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"J. Candy","raw_affiliation_strings":["Bell Laboratories, Holmdel, NJ, USA"],"affiliations":[{"raw_affiliation_string":"Bell Laboratories, Holmdel, NJ, USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057991756","display_name":"B.A. Wooley","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"B. Wooley","raw_affiliation_strings":["Bell Laboratories, Holmdel, NJ, USA"],"affiliations":[{"raw_affiliation_string":"Bell Laboratories, Holmdel, NJ, USA","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5053912420","display_name":"O. Benjamin","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"O. Benjamin","raw_affiliation_strings":["Bell Laboratories, Holmdel, NJ, USA"],"affiliations":[{"raw_affiliation_string":"Bell Laboratories, Holmdel, NJ, USA","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5078089890"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.1062,"has_fulltext":false,"cited_by_count":56,"citation_normalized_percentile":{"value":0.9218585,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"29","issue":"6","first_page":"815","last_page":"830"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9991999864578247,"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":0.9991999864578247,"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":0.9983000159263611,"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/T10901","display_name":"Advanced Data Compression Techniques","score":0.9955000281333923,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/codec","display_name":"Codec","score":0.7314433455467224},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6507790088653564},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5929071307182312},{"id":"https://openalex.org/keywords/pulse-code-modulation","display_name":"Pulse-code modulation","score":0.5921846628189087},{"id":"https://openalex.org/keywords/demodulation","display_name":"Demodulation","score":0.5773043036460876},{"id":"https://openalex.org/keywords/dynamic-range","display_name":"Dynamic range","score":0.5061132311820984},{"id":"https://openalex.org/keywords/sample-and-hold","display_name":"Sample and hold","score":0.48354148864746094},{"id":"https://openalex.org/keywords/encoder","display_name":"Encoder","score":0.44981247186660767},{"id":"https://openalex.org/keywords/digital-filter","display_name":"Digital filter","score":0.4416191577911377},{"id":"https://openalex.org/keywords/analog-signal","display_name":"Analog signal","score":0.4191017746925354},{"id":"https://openalex.org/keywords/integrator","display_name":"Integrator","score":0.4171523153781891},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.353367418050766},{"id":"https://openalex.org/keywords/electronic-circuit","display_name":"Electronic circuit","score":0.3356468081474304},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.3128044307231903},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.30284231901168823},{"id":"https://openalex.org/keywords/digital-signal-processing","display_name":"Digital signal processing","score":0.2625686526298523},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.2526751458644867},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.21771055459976196},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.19287243485450745},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.18292900919914246},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.16611754894256592}],"concepts":[{"id":"https://openalex.org/C161765866","wikidata":"https://www.wikidata.org/wiki/Q184748","display_name":"Codec","level":2,"score":0.7314433455467224},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6507790088653564},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5929071307182312},{"id":"https://openalex.org/C160987145","wikidata":"https://www.wikidata.org/wiki/Q13043846","display_name":"Pulse-code modulation","level":3,"score":0.5921846628189087},{"id":"https://openalex.org/C195251586","wikidata":"https://www.wikidata.org/wiki/Q1185939","display_name":"Demodulation","level":3,"score":0.5773043036460876},{"id":"https://openalex.org/C87133666","wikidata":"https://www.wikidata.org/wiki/Q1161699","display_name":"Dynamic range","level":2,"score":0.5061132311820984},{"id":"https://openalex.org/C206565188","wikidata":"https://www.wikidata.org/wiki/Q836482","display_name":"Sample and hold","level":3,"score":0.48354148864746094},{"id":"https://openalex.org/C118505674","wikidata":"https://www.wikidata.org/wiki/Q42586063","display_name":"Encoder","level":2,"score":0.44981247186660767},{"id":"https://openalex.org/C36390408","wikidata":"https://www.wikidata.org/wiki/Q1163067","display_name":"Digital filter","level":3,"score":0.4416191577911377},{"id":"https://openalex.org/C13412647","wikidata":"https://www.wikidata.org/wiki/Q174948","display_name":"Analog signal","level":3,"score":0.4191017746925354},{"id":"https://openalex.org/C79518650","wikidata":"https://www.wikidata.org/wiki/Q2081431","display_name":"Integrator","level":3,"score":0.4171523153781891},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.353367418050766},{"id":"https://openalex.org/C134146338","wikidata":"https://www.wikidata.org/wiki/Q1815901","display_name":"Electronic circuit","level":2,"score":0.3356468081474304},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.3128044307231903},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.30284231901168823},{"id":"https://openalex.org/C84462506","wikidata":"https://www.wikidata.org/wiki/Q173142","display_name":"Digital signal processing","level":2,"score":0.2625686526298523},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.2526751458644867},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.21771055459976196},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.19287243485450745},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.18292900919914246},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.16611754894256592},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcom.1981.1095061","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcom.1981.1095061","pdf_url":null,"source":{"id":"https://openalex.org/S4210170832","display_name":"IRE Transactions on Communications Systems","issn_l":"0096-2244","issn":["0096-2244","2162-2132"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6800000071525574,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W2001019064","https://openalex.org/W2017889492","https://openalex.org/W2035385474","https://openalex.org/W2054450414","https://openalex.org/W2056876741","https://openalex.org/W2060659343","https://openalex.org/W2065395809","https://openalex.org/W2076479497","https://openalex.org/W2084698885","https://openalex.org/W2088147064","https://openalex.org/W2097818803","https://openalex.org/W2127944720","https://openalex.org/W2148732233","https://openalex.org/W2162944888"],"related_works":["https://openalex.org/W2065395809","https://openalex.org/W1982208574","https://openalex.org/W2185786609","https://openalex.org/W2088147064","https://openalex.org/W2341475654","https://openalex.org/W2102537197","https://openalex.org/W2484842910","https://openalex.org/W2000273312","https://openalex.org/W2038255165","https://openalex.org/W1996837452"],"abstract_inverted_index":{"Oversampling":[0],"and":[1,45,63,237],"digital":[2,37,138,156,208],"filtering":[3,53,78,85,139],"have":[4],"been":[5],"used":[6,159],"to":[7,72,90,160,165,169,183],"design":[8],"a":[9,101,142,147,172],"per-channel":[10],"voiceband":[11],"codec":[12,57,126,180,233],"with":[13,213,218],"resolution":[14],"that":[15,69,131,140],"exceeds":[16],"the":[17,34,40,56,66,74,92,110,114,118,124,154,162,179,194,199,207,221,229,232,238],"typical":[18],"transmission":[19],"system":[20,46],"requirement":[21],"by":[22,137,242],"more":[23],"than":[24,215],"15":[25],"dB.":[26],"This":[27],"extended":[28],"dynamic":[29,94,115],"range":[30,95,116],"will":[31],"allow":[32],"for":[33,76,186],"use":[35],"of":[36,42,60,65,103,106,117,123,150,198,201,223,231,244],"processing":[38,157],"in":[39,48,55,79,96,171,178,193],"management":[41],"signal":[43],"levels":[44],"characteristics":[47],"many":[49],"telecommunication":[50],"applications.":[51,82],"Digital":[52],"contained":[54],"provides":[58],"rejection":[59],"out-of-band":[61,107],"inputs":[62],"smoothing":[64],"analog":[67,77,84,111,195],"output":[68],"is":[70,100,158,234],"sufficient":[71],"eliminate":[73],"need":[75],"most":[80],"telephone":[81],"Some":[83],"may":[86],"be":[87,184,211],"required":[88,192],"only":[89,202],"maintain":[91],"expanded":[93],"cases":[97],"where":[98],"there":[99],"danger":[102],"large":[104],"amounts":[105],"energy":[108],"on":[109,220],"input":[112],"impairing":[113],"modulator.":[119],"The":[120,176],"encoder":[121],"portion":[122],"oversampled":[125],"comprises":[127],"an":[128],"interpolating":[129,174],"modulator":[130],"samples":[132],"at":[133,146],"256":[134],"kHz":[135],"followed":[136],"produces":[141],"16-bit":[143],"PCM":[144],"code":[145],"sample":[148],"rate":[149,164],"8":[151],"kHz.":[152],"In":[153,226],"decoder,":[155],"raise":[161],"sampling":[163],"1":[166,204],"MHz":[167],"prior":[168],"demodulation":[170],"17-level":[173],"demodulator.":[175],"circuits":[177,196,209],"are":[181,197,240],"designed":[182],"suitable":[185],"large-scale":[187],"integration.":[188],"Component":[189],"matching":[190],"tolerances":[191],"order":[200,222],"\u00b1":[203],"percent,":[205],"While":[206],"can":[210],"implemented":[212],"fewer":[214],"5000":[216],"gates":[217],"delays":[219],"0.1":[224],"\u03bcs.":[225],"this":[227],"paper":[228],"response":[230],"described":[235],"mathematically":[236],"results":[239],"confirmed":[241],"measurements":[243],"experimental":[245],"breadboard":[246],"models.":[247]},"counts_by_year":[{"year":2020,"cited_by_count":2},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
