{"created":"2025-01-19T01:30:27.955123+00:00","updated":"2025-01-19T11:04:51.539005+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00230598","sets":["6504:11436:11443"]},"path":["11443"],"owner":"44499","recid":"230598","title":["二次元ΔΣ変調を用いたサーキュラーアレイスピーカについて -指向性リアルタイム制御システムの開発-"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-02-16"},"_buckets":{"deposit":"abee9a5d-af5c-4a8c-95c7-d9bd159b136d"},"_deposit":{"id":"230598","pid":{"type":"depid","value":"230598","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"二次元ΔΣ変調を用いたサーキュラーアレイスピーカについて -指向性リアルタイム制御システムの開発-","author_link":["621759","621758","621760"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"二次元ΔΣ変調を用いたサーキュラーアレイスピーカについて -指向性リアルタイム制御システムの開発-"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"インタフェース","subitem_subject_scheme":"Other"}]},"item_type_id":"22","publish_date":"2023-02-16","item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_22_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"山形大"},{"subitem_text_value":"山形大"},{"subitem_text_value":"山形大"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/230598/files/IPSJ-Z85-4ZE-06.pdf","label":"IPSJ-Z85-4ZE-06.pdf"},"date":[{"dateType":"Available","dateValue":"2023-11-17"}],"format":"application/pdf","filename":"IPSJ-Z85-4ZE-06.pdf","filesize":[{"value":"479.4 kB"}],"mimetype":"application/pdf","accessrole":"open_date","version_id":"65a4d037-ba9b-4655-80f4-195a26abaa07","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2023 by the Information Processing Society of Japan"}]},"item_22_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"平野, 孝明"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"工藤, 壮平"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"柳田, 裕隆"}],"nameIdentifiers":[{}]}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_5794","resourcetype":"conference paper"}]},"item_22_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00349328","subitem_source_identifier_type":"NCID"}]},"item_22_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":" 指向性スピーカは、多数のスピーカ素子をアナログ信号で同時に駆動するため、回路規模が大きく、高コストなシステムになる。少ないスピーカ素子で指向性を得られるサーキュラーアレイと、時間2次空間2次のΔΣ変調技術を組み合わせることで、低コストかつ高音質な指向性スピーカーシステムを作成し、音場計測により指向特性を確認する。リアルタイムかつ音の焦点移動を行うために、FPGAによるデジタル信号処理とUSBインタフェース通信をシステムに組み込み、PCから操作することを可能とした。音の指向性を保ちつつ瞬時に目的の位置に音のピークを移動させることが可能であることを実測によって確認した。","subitem_description_type":"Other"}]},"item_22_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"100","bibliographic_titles":[{"bibliographic_title":"第85回全国大会講演論文集"}],"bibliographicPageStart":"99","bibliographicIssueDates":{"bibliographicIssueDate":"2023-02-16","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"2023"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":230598,"links":{}}