{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00240511","sets":["1164:2036:11466:11785"]},"path":["11785"],"owner":"44499","recid":"240511","title":["マルチチャネルオーディオ用高速畳込のFPGA実装"],"pubdate":{"attribute_name":"公開日","attribute_value":"2024-11-05"},"_buckets":{"deposit":"c425575c-a382-4f64-a9ca-444af5f0b838"},"_deposit":{"id":"240511","pid":{"type":"depid","value":"240511","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"マルチチャネルオーディオ用高速畳込のFPGA実装","author_link":["659926","659924","659929","659927","659928","659925"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"マルチチャネルオーディオ用高速畳込のFPGA実装"},{"subitem_title":"Implementation of Multi-Channel Fast Audio Convolution on FPGA","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2024-11-05","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"ヤマハ㈱電子楽器事業部"},{"subitem_text_value":"ヤマハハイテックデザイン㈱"},{"subitem_text_value":"ヤマハハイテックデザイン㈱"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Digital Musical Instrument Division, YAMAHA Corporation","subitem_text_language":"en"},{"subitem_text_value":"Development Division, YAMAHA Hi-Tech Design Corporation","subitem_text_language":"en"},{"subitem_text_value":"Development Division, YAMAHA Hi-Tech Design Corporation","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/240511/files/IPSJ-SLDM24207029.pdf","label":"IPSJ-SLDM24207029.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-SLDM24207029.pdf","filesize":[{"value":"1.9 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"10"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_login","version_id":"709c5eae-a701-49cb-9126-a23a7006b6fb","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2024 by the Institute of Electronics, Information and Communication Engineers This SIG report is only available to those in membership of the SIG."}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"岡﨑, 雅嗣"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"川嶋, 龍次"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"髙木, 綾祐"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Masatsugu, Okazaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ryuji, Kawashima","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ryosuke, Takagi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11451459","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_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8639","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"楽器やオーディオ機器にフィルタを実装するいくつかの方法の中で，特性の自由度の高いフィルタを構成したい場合は FIR フィルタを用いることがあり，この FIR フィルタの計算効率を上げるために高速畳込が用いられる．私たちは，これまで数チャネルまでのソフトウェア実装が多かった高速畳込を 1024 チャンネルの実時間処理を行えるよう FPGA 上に実装した．ここではその実装にあたり，楽器・オーディオにおける畳込を用いた応用の制約について議論し，オーディオ処理特有の工夫と FFT/IFFT 回路に実装した機能について説明し，今回行った実装の 1 例を紹介する．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"In the various methods of implementing filters in musical instruments and audio products, if one desires to construct a filter with a high degree of characteristic of flexibility, an FIR filter may be used. When implementing an FIR filter, a method that uses fast convolution to improve computational efficiency is often employed. We implemented a circuit on an FPGA that processes this fast convolution in real-time across 1024 channels. In the implementation, we discuss the constraints of applications using convolution in musical instruments and audio, and describe the features implemented in the FFT/IFFT circuit, as well as the unique ingenuity specific to audio processing. We will also introduce an example of the implementation carried out this time.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告システムとLSIの設計技術（SLDM）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2024-11-05","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"29","bibliographicVolumeNumber":"2024-SLDM-207"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":240511,"updated":"2025-01-19T07:57:23.927331+00:00","links":{},"created":"2025-01-19T01:44:44.538172+00:00"}