{"id":"https://openalex.org/W4390552081","doi":"https://doi.org/10.1109/iscit57293.2023.10376073","title":"Lossless Audio Compression using DWT, DCT and Huffman-based LZW Encoding","display_name":"Lossless Audio Compression using DWT, DCT and Huffman-based LZW Encoding","publication_year":2023,"publication_date":"2023-10-16","ids":{"openalex":"https://openalex.org/W4390552081","doi":"https://doi.org/10.1109/iscit57293.2023.10376073"},"language":"en","primary_location":{"id":"doi:10.1109/iscit57293.2023.10376073","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iscit57293.2023.10376073","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2023 22nd International Symposium on Communications and Information Technologies (ISCIT)","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/A5111105796","display_name":"Sean Kenneth Abu","orcid":null},"institutions":[{"id":"https://openalex.org/I87074743","display_name":"University of the Philippines Diliman","ror":"https://ror.org/03tbh6y23","country_code":"PH","type":"education","lineage":["https://openalex.org/I103911934","https://openalex.org/I87074743"]}],"countries":["PH"],"is_corresponding":true,"raw_author_name":"Sean Kenneth Abu","raw_affiliation_strings":["University of the Philippines Diliman,Digital Signal Processing Laboratory,Quezon City,Philippines","Digital Signal Processing Laboratory, University of the Philippines Diliman, Quezon City, Philippines"],"affiliations":[{"raw_affiliation_string":"University of the Philippines Diliman,Digital Signal Processing Laboratory,Quezon City,Philippines","institution_ids":["https://openalex.org/I87074743"]},{"raw_affiliation_string":"Digital Signal Processing Laboratory, University of the Philippines Diliman, Quezon City, Philippines","institution_ids":["https://openalex.org/I87074743"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5093647536","display_name":"Josh Rael Jorquia","orcid":null},"institutions":[{"id":"https://openalex.org/I87074743","display_name":"University of the Philippines Diliman","ror":"https://ror.org/03tbh6y23","country_code":"PH","type":"education","lineage":["https://openalex.org/I103911934","https://openalex.org/I87074743"]}],"countries":["PH"],"is_corresponding":false,"raw_author_name":"Josh Rael Jorquia","raw_affiliation_strings":["University of the Philippines Diliman,Digital Signal Processing Laboratory,Quezon City,Philippines","Digital Signal Processing Laboratory, University of the Philippines Diliman, Quezon City, Philippines"],"affiliations":[{"raw_affiliation_string":"University of the Philippines Diliman,Digital Signal Processing Laboratory,Quezon City,Philippines","institution_ids":["https://openalex.org/I87074743"]},{"raw_affiliation_string":"Digital Signal Processing Laboratory, University of the Philippines Diliman, Quezon City, Philippines","institution_ids":["https://openalex.org/I87074743"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075903744","display_name":"Jose Marie Mendoza","orcid":null},"institutions":[{"id":"https://openalex.org/I87074743","display_name":"University of the Philippines Diliman","ror":"https://ror.org/03tbh6y23","country_code":"PH","type":"education","lineage":["https://openalex.org/I103911934","https://openalex.org/I87074743"]}],"countries":["PH"],"is_corresponding":false,"raw_author_name":"Jose Marie Mendoza","raw_affiliation_strings":["University of the Philippines Diliman,Digital Signal Processing Laboratory,Quezon City,Philippines","Digital Signal Processing Laboratory, University of the Philippines Diliman, Quezon City, Philippines"],"affiliations":[{"raw_affiliation_string":"University of the Philippines Diliman,Digital Signal Processing Laboratory,Quezon City,Philippines","institution_ids":["https://openalex.org/I87074743"]},{"raw_affiliation_string":"Digital Signal Processing Laboratory, University of the Philippines Diliman, Quezon City, Philippines","institution_ids":["https://openalex.org/I87074743"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026013335","display_name":"Carl Timothy Tolentino","orcid":"https://orcid.org/0009-0004-9809-3766"},"institutions":[{"id":"https://openalex.org/I87074743","display_name":"University of the Philippines Diliman","ror":"https://ror.org/03tbh6y23","country_code":"PH","type":"education","lineage":["https://openalex.org/I103911934","https://openalex.org/I87074743"]}],"countries":["PH"],"is_corresponding":false,"raw_author_name":"Carl Timothy Tolentino","raw_affiliation_strings":["University of the Philippines Diliman,Digital Signal Processing Laboratory,Quezon City,Philippines","Digital Signal Processing Laboratory, University of the Philippines Diliman, Quezon City, Philippines"],"affiliations":[{"raw_affiliation_string":"University of the Philippines Diliman,Digital Signal Processing Laboratory,Quezon City,Philippines","institution_ids":["https://openalex.org/I87074743"]},{"raw_affiliation_string":"Digital Signal Processing Laboratory, University of the Philippines Diliman, Quezon City, Philippines","institution_ids":["https://openalex.org/I87074743"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5068297069","display_name":"Crisron Rudolf Lucas","orcid":null},"institutions":[{"id":"https://openalex.org/I42934936","display_name":"Dublin City University","ror":"https://ror.org/04a1a1e81","country_code":"IE","type":"education","lineage":["https://openalex.org/I42934936"]},{"id":"https://openalex.org/I100930933","display_name":"University College Dublin","ror":"https://ror.org/05m7pjf47","country_code":"IE","type":"education","lineage":["https://openalex.org/I100930933"]}],"countries":["IE"],"is_corresponding":false,"raw_author_name":"Crisron Rudolf Lucas","raw_affiliation_strings":["University College Dublin,Insight SFI Research Centre for Data Analytics,Dublin,Ireland","Insight SFI Research Centre for Data Analytics, University College Dublin, Dublin, Ireland"],"affiliations":[{"raw_affiliation_string":"University College Dublin,Insight SFI Research Centre for Data Analytics,Dublin,Ireland","institution_ids":["https://openalex.org/I42934936"]},{"raw_affiliation_string":"Insight SFI Research Centre for Data Analytics, University College Dublin, Dublin, Ireland","institution_ids":["https://openalex.org/I100930933"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5111105796"],"corresponding_institution_ids":["https://openalex.org/I87074743"],"apc_list":null,"apc_paid":null,"fwci":0.123,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.45613244,"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":"357","last_page":"362"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10901","display_name":"Advanced Data Compression Techniques","score":0.9998000264167786,"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"}},"topics":[{"id":"https://openalex.org/T10901","display_name":"Advanced Data Compression Techniques","score":0.9998000264167786,"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/T11309","display_name":"Music and Audio Processing","score":0.9987999796867371,"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":0.9958999752998352,"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/lossless-compression","display_name":"Lossless compression","score":0.7959223389625549},{"id":"https://openalex.org/keywords/huffman-coding","display_name":"Huffman coding","score":0.7739564776420593},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6953414678573608},{"id":"https://openalex.org/keywords/data-compression","display_name":"Data compression","score":0.6066962480545044},{"id":"https://openalex.org/keywords/discrete-cosine-transform","display_name":"Discrete cosine transform","score":0.5963874459266663},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.5454346537590027},{"id":"https://openalex.org/keywords/digital-audio","display_name":"Digital audio","score":0.507705569267273},{"id":"https://openalex.org/keywords/discrete-wavelet-transform","display_name":"Discrete wavelet transform","score":0.5043102502822876},{"id":"https://openalex.org/keywords/speech-coding","display_name":"Speech coding","score":0.46315470337867737},{"id":"https://openalex.org/keywords/compression-ratio","display_name":"Compression ratio","score":0.43616488575935364},{"id":"https://openalex.org/keywords/entropy-encoding","display_name":"Entropy encoding","score":0.43160149455070496},{"id":"https://openalex.org/keywords/lossless-jpeg","display_name":"Lossless JPEG","score":0.4126427173614502},{"id":"https://openalex.org/keywords/wavelet","display_name":"Wavelet","score":0.3776536285877228},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3421751856803894},{"id":"https://openalex.org/keywords/audio-signal","display_name":"Audio signal","score":0.33409175276756287},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.30833789706230164},{"id":"https://openalex.org/keywords/image-compression","display_name":"Image compression","score":0.2578716278076172},{"id":"https://openalex.org/keywords/image-processing","display_name":"Image processing","score":0.09031066298484802},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.05398154258728027}],"concepts":[{"id":"https://openalex.org/C81081738","wikidata":"https://www.wikidata.org/wiki/Q55542","display_name":"Lossless compression","level":3,"score":0.7959223389625549},{"id":"https://openalex.org/C46900642","wikidata":"https://www.wikidata.org/wiki/Q2647","display_name":"Huffman coding","level":3,"score":0.7739564776420593},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6953414678573608},{"id":"https://openalex.org/C78548338","wikidata":"https://www.wikidata.org/wiki/Q2493","display_name":"Data compression","level":2,"score":0.6066962480545044},{"id":"https://openalex.org/C2221639","wikidata":"https://www.wikidata.org/wiki/Q2877","display_name":"Discrete cosine transform","level":3,"score":0.5963874459266663},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.5454346537590027},{"id":"https://openalex.org/C87687168","wikidata":"https://www.wikidata.org/wiki/Q173114","display_name":"Digital audio","level":4,"score":0.507705569267273},{"id":"https://openalex.org/C46286280","wikidata":"https://www.wikidata.org/wiki/Q2414958","display_name":"Discrete wavelet transform","level":4,"score":0.5043102502822876},{"id":"https://openalex.org/C13895895","wikidata":"https://www.wikidata.org/wiki/Q3270773","display_name":"Speech coding","level":2,"score":0.46315470337867737},{"id":"https://openalex.org/C25797200","wikidata":"https://www.wikidata.org/wiki/Q828137","display_name":"Compression ratio","level":3,"score":0.43616488575935364},{"id":"https://openalex.org/C1769480","wikidata":"https://www.wikidata.org/wiki/Q1345239","display_name":"Entropy encoding","level":3,"score":0.43160149455070496},{"id":"https://openalex.org/C8384606","wikidata":"https://www.wikidata.org/wiki/Q2190356","display_name":"Lossless JPEG","level":5,"score":0.4126427173614502},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.3776536285877228},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3421751856803894},{"id":"https://openalex.org/C64922751","wikidata":"https://www.wikidata.org/wiki/Q4650799","display_name":"Audio signal","level":3,"score":0.33409175276756287},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.30833789706230164},{"id":"https://openalex.org/C13481523","wikidata":"https://www.wikidata.org/wiki/Q412438","display_name":"Image compression","level":4,"score":0.2578716278076172},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.09031066298484802},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.05398154258728027},{"id":"https://openalex.org/C171146098","wikidata":"https://www.wikidata.org/wiki/Q124192","display_name":"Automotive engineering","level":1,"score":0.0},{"id":"https://openalex.org/C511840579","wikidata":"https://www.wikidata.org/wiki/Q12757","display_name":"Internal combustion engine","level":2,"score":0.0},{"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/iscit57293.2023.10376073","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iscit57293.2023.10376073","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2023 22nd International Symposium on Communications and Information Technologies (ISCIT)","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":14,"referenced_works":["https://openalex.org/W1580101844","https://openalex.org/W1943510828","https://openalex.org/W2111017614","https://openalex.org/W2313308589","https://openalex.org/W2322112541","https://openalex.org/W2529389163","https://openalex.org/W2551455105","https://openalex.org/W2579748243","https://openalex.org/W3004017989","https://openalex.org/W3127145378","https://openalex.org/W4205318349","https://openalex.org/W4394555354","https://openalex.org/W6640564865","https://openalex.org/W6729555046"],"related_works":["https://openalex.org/W1581737654","https://openalex.org/W2126317666","https://openalex.org/W2156106714","https://openalex.org/W2906173154","https://openalex.org/W2167336121","https://openalex.org/W606901217","https://openalex.org/W1557835754","https://openalex.org/W2189785727","https://openalex.org/W2096793045","https://openalex.org/W2964973707"],"abstract_inverted_index":{"As":[0],"digital":[1],"content":[2],"and":[3,9,31,52,106,112],"multimedia":[4],"files":[5,79,85],"increase":[6],"in":[7,22,82],"quality":[8],"size,":[10],"there":[11],"is":[12],"a":[13,23,38,45,95,102],"growing":[14],"need":[15],"for":[16,72],"audio":[17,61,104],"signal":[18,26],"compression":[19,40,92],"to":[20,59,86],"aid":[21],"more":[24],"efficient":[25],"transmission,":[27],"network":[28],"systems":[29],"management,":[30],"processing":[32],"of":[33,47,90,99,109],"data.":[34],"In":[35],"this":[36],"study,":[37],"lossless":[39],"method":[41],"was":[42,70],"implemented":[43],"using":[44],"combination":[46],"Discrete":[48,53],"Wavelet":[49],"Transform":[50,55],"(DWT)":[51],"Cosine":[54],"(DCT)":[56],"[1]":[57],"[2]":[58],"decompose":[60],"signals.":[62],"Furthermore,":[63],"Huffman-based":[64],"Lempel-Ziv-Welch":[65],"(LZW)":[66],"coding":[67],"algorithm":[68],"[3]":[69],"used":[71],"the":[73],"entropy":[74],"encoding.":[75],"The":[76],"resulting":[77],"compressed":[78],"were":[80],"stored":[81],"MATLAB":[83],"raw":[84],"produce":[87],"an":[88,107],"average":[89,108],"4.4":[91],"ratio(CR)":[93],"($\\sim$78%),":[94],"peak":[96],"signal-to-noise":[97],"ratio(PSNR)":[98],"62dB":[100],"across":[101],"small":[103],"sample":[105],"1.63":[110],"CR":[111],"39.51dB":[113],"PSNR":[114],"on":[115],"GTZAN":[116],"music/speech":[117],"dataset.":[118]},"counts_by_year":[{"year":2023,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}