{"updated":"2025-01-21T18:34:57.335140+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00083409","sets":["1164:5064:6681:6843"]},"path":["6843"],"owner":"11","recid":"83409","title":["補助関数法によるMIDI信号の音楽音響信号への詳細なフィッティング"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-08-02"},"_buckets":{"deposit":"baee51f8-850b-4153-8f0b-de49526efe9d"},"_deposit":{"id":"83409","pid":{"type":"depid","value":"83409","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"補助関数法によるMIDI信号の音楽音響信号への詳細なフィッティング","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"補助関数法によるMIDI信号の音楽音響信号への詳細なフィッティング"},{"subitem_title":"Auxiliary function approach for optimal MIDI-fitting to audio signals","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"機械学習：適応・同期","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2012-08-02","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学大学院情報理工学系研究科"},{"subitem_text_value":"東京大学大学院情報理工学系研究科／NTTコミュニケーション科学基礎研究所"},{"subitem_text_value":"東京大学大学院情報理工学系研究科"},{"subitem_text_value":"東京大学大学院情報理工学系研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Information Science and Technology, The University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Information Science and Technology, The University of Tokyo / NTT Communication Science Laboratory","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Information Science and Technology, The University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Information Science and Technology, The University of Tokyo","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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/83409/files/IPSJ-MUS12096012.pdf"},"date":[{"dateType":"Available","dateValue":"2014-08-02"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-MUS12096012.pdf","filesize":[{"value":"1.1 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"21"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"2e7f5562-b219-4697-a379-215a47ebcc11","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2012 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"高宗, 典玄"},{"creatorName":"亀岡, 弘和"},{"creatorName":"土屋, 政人"},{"creatorName":"嵯峨山, 茂樹"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Norihiro, Takamune","creatorNameLang":"en"},{"creatorName":"Hirokazu, Kameoka","creatorNameLang":"en"},{"creatorName":"Masato, Tsuchiya","creatorNameLang":"en"},{"creatorName":"Shigeki, Sagayama","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10438388","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"本報告では，楽譜が与えられているもとで，音響信号を最もよく再現する MIDI のベロシティやオンセットの時刻といったパラメータを推定する問題を扱う．MIDI パラメータの推定を行うためには，MIDI が生成する音響信号のスペクトログラムと実際の観測音響信号のスペクトログラムの距離を最小化するようにパラメータを設定する必要がある．この最適化問題は膨大な解空間を持つため，単純に大域最適解を探すのは困難である．そこで，本研究では楽譜情報を用いて正解に近いパラメータを与えた上で補助関数法を用いて効率的に局所最適解を探索する手法を提案する．音楽音響信号に対して MIDI のパラメータを提案法を用いて推定する実験を行い，提案法の特徴について議論する．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"In this paper, we tackle to fit parameters of MIDI signals such as velocities and onset times to recorded polyphonic signals, which are performed with reference of the corresponding score. The large gap between MIDI parameters and acoustic signals exists and cannot compare simply. We regard the similarity of MIDI parameters and acoustic signals as the similairty on spectrogram, and develop the fitting algorithm which are efficient thanks to auxiliary function approach. For the sake of computation complexity, our method has information of scores associated with acoustic signals. We discuss merits and demerits of the proposed method through the experiments.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"4","bibliographic_titles":[{"bibliographic_title":"研究報告音楽情報科学（MUS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2012-08-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"12","bibliographicVolumeNumber":"2012-MUS-96"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-18T23:36:54.541413+00:00","id":83409,"links":{}}