{"id":"https://openalex.org/W4416798953","doi":"https://doi.org/10.1109/apsipaasc65261.2025.11249234","title":"Directional Filtering of Sound Fields for Emphasizing Specific Directions of Arrival and Its Applications","display_name":"Directional Filtering of Sound Fields for Emphasizing Specific Directions of Arrival and Its Applications","publication_year":2025,"publication_date":"2025-10-22","ids":{"openalex":"https://openalex.org/W4416798953","doi":"https://doi.org/10.1109/apsipaasc65261.2025.11249234"},"language":null,"primary_location":{"id":"doi:10.1109/apsipaasc65261.2025.11249234","is_oa":false,"landing_page_url":"https://doi.org/10.1109/apsipaasc65261.2025.11249234","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC)","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/A5049310422","display_name":"Ryo Murakami","orcid":"https://orcid.org/0000-0001-8585-9268"},"institutions":[{"id":"https://openalex.org/I96036126","display_name":"Kumamoto University","ror":"https://ror.org/02cgss904","country_code":"JP","type":"education","lineage":["https://openalex.org/I96036126"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryo Murakami","raw_affiliation_strings":["Kumamoto University,Kumamoto,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kumamoto University,Kumamoto,Japan","institution_ids":["https://openalex.org/I96036126"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064535049","display_name":"Natsuki Ueno","orcid":"https://orcid.org/0000-0002-5906-563X"},"institutions":[{"id":"https://openalex.org/I96036126","display_name":"Kumamoto University","ror":"https://ror.org/02cgss904","country_code":"JP","type":"education","lineage":["https://openalex.org/I96036126"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Natsuki Ueno","raw_affiliation_strings":["Kumamoto University,Kumamoto,Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kumamoto University,Kumamoto,Japan","institution_ids":["https://openalex.org/I96036126"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I96036126"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.31831624,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"489","last_page":"494"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10283","display_name":"Hearing Loss and Rehabilitation","score":0.5479000210762024,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T10283","display_name":"Hearing Loss and Rehabilitation","score":0.5479000210762024,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.28769999742507935,"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/T11008","display_name":"Aerodynamics and Acoustics in Jet Flows","score":0.048500001430511475,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"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/superposition-principle","display_name":"Superposition principle","score":0.616100013256073},{"id":"https://openalex.org/keywords/weighting","display_name":"Weighting","score":0.5971999764442444},{"id":"https://openalex.org/keywords/position","display_name":"Position (finance)","score":0.5296000242233276},{"id":"https://openalex.org/keywords/directional-sound","display_name":"Directional sound","score":0.49070000648498535},{"id":"https://openalex.org/keywords/microphone","display_name":"Microphone","score":0.48019999265670776},{"id":"https://openalex.org/keywords/sound","display_name":"Sound (geography)","score":0.4738999903202057},{"id":"https://openalex.org/keywords/microphone-array","display_name":"Microphone array","score":0.45879998803138733},{"id":"https://openalex.org/keywords/acoustic-source-localization","display_name":"Acoustic source localization","score":0.4580000042915344}],"concepts":[{"id":"https://openalex.org/C27753989","wikidata":"https://www.wikidata.org/wiki/Q284885","display_name":"Superposition principle","level":2,"score":0.616100013256073},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.6003000140190125},{"id":"https://openalex.org/C183115368","wikidata":"https://www.wikidata.org/wiki/Q856577","display_name":"Weighting","level":2,"score":0.5971999764442444},{"id":"https://openalex.org/C198082294","wikidata":"https://www.wikidata.org/wiki/Q3399648","display_name":"Position (finance)","level":2,"score":0.5296000242233276},{"id":"https://openalex.org/C104138954","wikidata":"https://www.wikidata.org/wiki/Q5280449","display_name":"Directional sound","level":3,"score":0.49070000648498535},{"id":"https://openalex.org/C2778263558","wikidata":"https://www.wikidata.org/wiki/Q46384","display_name":"Microphone","level":3,"score":0.48019999265670776},{"id":"https://openalex.org/C203718221","wikidata":"https://www.wikidata.org/wiki/Q491713","display_name":"Sound (geography)","level":2,"score":0.4738999903202057},{"id":"https://openalex.org/C2778806681","wikidata":"https://www.wikidata.org/wiki/Q907293","display_name":"Microphone array","level":4,"score":0.45879998803138733},{"id":"https://openalex.org/C93240960","wikidata":"https://www.wikidata.org/wiki/Q217270","display_name":"Acoustic source localization","level":3,"score":0.4580000042915344},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.41339999437332153},{"id":"https://openalex.org/C17020691","wikidata":"https://www.wikidata.org/wiki/Q139677","display_name":"Operator (biology)","level":5,"score":0.40619999170303345},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.4025000035762787},{"id":"https://openalex.org/C121475858","wikidata":"https://www.wikidata.org/wiki/Q2735911","display_name":"Spatial filter","level":2,"score":0.40070000290870667},{"id":"https://openalex.org/C172051844","wikidata":"https://www.wikidata.org/wiki/Q5280438","display_name":"Direction of arrival","level":3,"score":0.364300012588501},{"id":"https://openalex.org/C70136482","wikidata":"https://www.wikidata.org/wiki/Q13583781","display_name":"A-weighting","level":3,"score":0.32499998807907104},{"id":"https://openalex.org/C204723758","wikidata":"https://www.wikidata.org/wiki/Q3882459","display_name":"Acoustic wave","level":2,"score":0.3222000002861023},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.3163999915122986},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.3021000027656555},{"id":"https://openalex.org/C24723263","wikidata":"https://www.wikidata.org/wiki/Q1571884","display_name":"Critical distance","level":4,"score":0.3012999892234802},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.28139999508857727},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.27869999408721924},{"id":"https://openalex.org/C16345878","wikidata":"https://www.wikidata.org/wiki/Q107472979","display_name":"Orientation (vector space)","level":2,"score":0.25619998574256897}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/apsipaasc65261.2025.11249234","is_oa":false,"landing_page_url":"https://doi.org/10.1109/apsipaasc65261.2025.11249234","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2835099701","display_name":null,"funder_award_id":"JP23K24864,JP25H01150","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W2017042252","https://openalex.org/W2141047270","https://openalex.org/W2768373198","https://openalex.org/W2789837483","https://openalex.org/W2899837588","https://openalex.org/W2962785840","https://openalex.org/W3112773928","https://openalex.org/W3129121609","https://openalex.org/W3148733971","https://openalex.org/W3204915849","https://openalex.org/W4247223564","https://openalex.org/W4312891280","https://openalex.org/W4376480421","https://openalex.org/W4390096874","https://openalex.org/W4399800641","https://openalex.org/W4399994677","https://openalex.org/W4407997237","https://openalex.org/W4411551504"],"related_works":[],"abstract_inverted_index":{"This":[0],"paper":[1],"proposes":[2],"a":[3,15,30,38,48,55,68,90,119],"directional":[4,25,35,61,96,114,121],"filtering":[5,26,62,97,115],"method":[6],"for":[7,63],"sound":[8,39,64,82,101,127],"fields":[9,65,102],"that":[10,33,111],"enhances":[11],"components":[12],"arriving":[13],"from":[14],"specified":[16,120],"direction":[17,44],"while":[18],"preserving":[19],"spatial":[20],"acoustic":[21],"information.":[22,139],"The":[23],"proposed":[24,60,95,113],"is":[27,75,98,129],"formulated":[28],"as":[29,67],"linear":[31],"operator":[32],"applies":[34],"weighting":[36,51],"to":[37,100],"field":[40,128],"based":[41],"on":[42],"the":[43,59,78,94,112,125],"of":[45,58,70,77,81],"arrival.":[46],"Under":[47],"von":[49],"Mises-Fisher-type":[50],"function,":[52],"we":[53,87],"derive":[54],"closed-form":[56],"expression":[57],"represented":[66,131],"superposition":[69],"spherical":[71],"wave":[72],"functions,":[73],"which":[74,93],"one":[76],"fundamental":[79],"representations":[80],"fields.":[83],"As":[84],"an":[85,133],"application,":[86],"also":[88],"present":[89],"framework":[91],"in":[92,132],"applied":[99],"estimated":[103],"using":[104],"microphone":[105],"array":[106],"measurements.":[107],"Numerical":[108],"experiments":[109],"demonstrate":[110],"can":[116],"effectively":[117],"enhance":[118],"component,":[122],"even":[123],"when":[124],"original":[126],"not":[130],"objectbased":[134],"manner,":[135],"including":[136],"source":[137],"position":[138]},"counts_by_year":[],"updated_date":"2026-06-26T08:34:08.712188","created_date":"2025-11-28T00:00:00"}