{"id":"https://openalex.org/W7133763914","doi":"https://doi.org/10.48550/arxiv.2603.04032","title":"Multi-Stage Music Source Restoration with BandSplit-RoFormer Separation and HiFi++ GAN","display_name":"Multi-Stage Music Source Restoration with BandSplit-RoFormer Separation and HiFi++ GAN","publication_year":2026,"publication_date":"2026-03-04","ids":{"openalex":"https://openalex.org/W7133763914","doi":"https://doi.org/10.48550/arxiv.2603.04032"},"language":null,"primary_location":{"id":"pmh:doi:10.48550/arxiv.2603.04032","is_oa":true,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4406922384","display_name":"Open MIND","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"publisher-specific-oa","license_id":"https://openalex.org/licenses/publisher-specific-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":null,"any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5091952748","display_name":"Tobias Morocutti","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Morocutti, Tobias","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5119958650","display_name":"Emmanouil Karystinaios","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Karystinaios, Emmanouil","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5107673216","display_name":"Jonathan Greif","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Greif, Jonathan","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5102102329","display_name":"Gerhard Widmer","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Widmer, Gerhard","raw_affiliation_strings":[],"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5091952748"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.42820000648498535,"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":0.42820000648498535,"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/T11309","display_name":"Music and Audio Processing","score":0.2295999974012375,"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/T11349","display_name":"Music Technology and Sound Studies","score":0.1500999927520752,"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/source-separation","display_name":"Source separation","score":0.7159000039100647},{"id":"https://openalex.org/keywords/waveform","display_name":"Waveform","score":0.6055999994277954},{"id":"https://openalex.org/keywords/separation","display_name":"Separation (statistics)","score":0.4174000024795532},{"id":"https://openalex.org/keywords/separation-method","display_name":"Separation method","score":0.28859999775886536},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.2858999967575073}],"concepts":[{"id":"https://openalex.org/C2776864781","wikidata":"https://www.wikidata.org/wiki/Q52617913","display_name":"Source separation","level":2,"score":0.7159000039100647},{"id":"https://openalex.org/C197424946","wikidata":"https://www.wikidata.org/wiki/Q1165717","display_name":"Waveform","level":3,"score":0.6055999994277954},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5357000231742859},{"id":"https://openalex.org/C2776061190","wikidata":"https://www.wikidata.org/wiki/Q7451805","display_name":"Separation (statistics)","level":2,"score":0.4174000024795532},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.40230000019073486},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.37540000677108765},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3702999949455261},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3499000072479248},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.326200008392334},{"id":"https://openalex.org/C3018256011","wikidata":"https://www.wikidata.org/wiki/Q898987","display_name":"Separation method","level":2,"score":0.28859999775886536},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.2858999967575073},{"id":"https://openalex.org/C2778029271","wikidata":"https://www.wikidata.org/wiki/Q5421931","display_name":"Extension (predicate logic)","level":2,"score":0.27570000290870667},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.2660999894142151},{"id":"https://openalex.org/C27753989","wikidata":"https://www.wikidata.org/wiki/Q284885","display_name":"Superposition principle","level":2,"score":0.265500009059906},{"id":"https://openalex.org/C120317606","wikidata":"https://www.wikidata.org/wiki/Q17105967","display_name":"Blind signal separation","level":3,"score":0.26010000705718994}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:doi:10.48550/arxiv.2603.04032","is_oa":true,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4406922384","display_name":"Open MIND","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"publisher-specific-oa","license_id":"https://openalex.org/licenses/publisher-specific-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"},{"id":"doi:10.48550/arxiv.2603.04032","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2603.04032","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"article"}],"best_oa_location":{"id":"pmh:doi:10.48550/arxiv.2603.04032","is_oa":true,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4406922384","display_name":"Open MIND","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"publisher-specific-oa","license_id":"https://openalex.org/licenses/publisher-specific-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","score":0.7778148651123047,"display_name":"Sustainable cities and communities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Music":[0],"Source":[1],"Restoration":[2],"(MSR)":[3],"targets":[4],"recovery":[5],"of":[6],"original,":[7],"unprocessed":[8],"instrument":[9],"stems":[10,56],"from":[11,71],"fully":[12],"mixed":[13],"and":[14,20,47,62,95],"mastered":[15],"audio,":[16],"where":[17],"production":[18],"effects":[19],"distribution":[21],"artifacts":[22],"violate":[23],"common":[24],"linear-mixture":[25],"assumptions.":[26],"This":[27],"technical":[28],"report":[29],"presents":[30],"the":[31,36],"CP-JKU":[32],"team's":[33],"system":[34],"for":[35],"MSR":[37,44],"ICASSP":[38],"Challenge":[39],"2025.":[40],"Our":[41],"approach":[42],"decomposes":[43],"into":[45,98],"separation":[46],"restoration.":[48],"First,":[49],"a":[50,66,86,93],"single":[51],"BandSplit-RoFormer":[52],"separator":[53],"predicts":[54],"eight":[55,99],"plus":[57],"an":[58],"auxiliary":[59],"other":[60],"stem,":[61],"is":[63],"trained":[64,91],"with":[65],"three-stage":[67],"curriculum":[68],"that":[69],"progresses":[70],"4-stem":[72],"warm-start":[73],"fine-tuning":[74],"(with":[75],"LoRA)":[76],"to":[77],"8-stem":[78],"extension":[79],"via":[80],"head":[81],"expansion.":[82],"Second,":[83],"we":[84],"apply":[85],"HiFi++":[87],"GAN":[88],"waveform":[89],"restorer":[90],"as":[92],"generalist":[94],"then":[96],"specialized":[97],"instrument-specific":[100],"experts.":[101]},"counts_by_year":[],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2026-03-06T00:00:00"}
