{"created":"2023-07-27T06:26:09.099627+00:00","id":9750,"links":{},"metadata":{"_buckets":{"deposit":"aca1875b-f1ac-4515-a064-c7f63a4d4e52"},"_deposit":{"created_by":3,"id":"9750","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"9750"},"status":"published"},"_oai":{"id":"oai:kanazawa-u.repo.nii.ac.jp:00009750","sets":["934:935:936"]},"author_link":["353","14231","377"],"item_4_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2005-05-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"53","bibliographicPageEnd":"6","bibliographicPageStart":"1","bibliographicVolumeNumber":"105","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会技術研究報告. EA, 応用音響　= Technical report of IEICE. EA （姫路）"}]}]},"item_4_description_21":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"本論文ではスペクトルサプレッション法を用いた単一マイクノイズキャンセラの音声品質の改善について検討する.スペクトルサプレッション法を用いて, 単一マイク方式のノイズキャンセラを実現する際には, 雑音抑圧における音質の劣化と雑音抑圧によって新たに発生するミュージカルノイズを如何に抑えるかがポイントとなる.ミュージカルノイズを抑えるために, その周波数成分が主として高域にあることを利用して, 高域抑圧を行なった.次に, 雑音を過剰に抑圧するために音声に歪みが発生し音質が劣化する.この劣化を防ぐために, 原音(観測信号=音声+雑音)をある割合だけ付加する方法を検討した.従来方法に比べて, ミュージカルノイズの抑制と音質の改善が得られた. In this paper, some methods, which improve voice quality and suppress musical noise in noise cancellers based on spectrum suppression approach, have been discussed. First, in order to suppress musical noise, the spectrum is weighted so as to suppress the high frequency components, which are dominant in the musical noise. Second, in order to improve voice quality, the original noisy voice is added to the voice after noise cancellation. These methods have been simulated and compared to the conventional methods. The simulation results show the proposed methods can improve the voice quality and suppress the musical noise. However, the method adding the original noisy voice requires more proper threshold control.","subitem_description_type":"Abstract"}]},"item_4_description_5":{"attribute_name":"提供者所属","attribute_value_mlt":[{"subitem_description":"金沢大学理工研究域　電子情報学系","subitem_description_type":"Other"}]},"item_4_publisher_17":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"IEICE The Institute of Electronics, Information and Communication Engineers"}]},"item_4_relation_28":{"attribute_name":"関連URI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.ieice.org/jpn/index.html","subitem_relation_type_select":"URI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://ci.nii.ac.jp/naid/110003284950","subitem_relation_type_select":"URI"}}]},"item_4_source_id_11":{"attribute_name":"NCID","attribute_value_mlt":[{"subitem_source_identifier":"AN10164817","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0913-5685","subitem_source_identifier_type":"ISSN"}]},"item_4_version_type_25":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"鈴木, 大和"},{"creatorName":"ナカヤマ, ケンジ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中山, 謙二"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"平野, 晃宏"}],"nameIdentifiers":[{},{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-10-03"}],"displaytype":"detail","filename":"TE-PR-NAKAYAMA-K-1_m.pdf","filesize":[{"value":"1.6 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"TE-PR-NAKAYAMA-K-1_m.pdf","url":"https://kanazawa-u.repo.nii.ac.jp/record/9750/files/TE-PR-NAKAYAMA-K-1_m.pdf"},"version_id":"bdce30b1-7559-406d-a2ae-5782d85464f9"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"スペクトルサプレッション法によるノイズキャンセラの音質改善(音響信号処理/一般)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"スペクトルサプレッション法によるノイズキャンセラの音質改善(音響信号処理/一般)"},{"subitem_title":"On Improvement of Voice Quality in Noise Cancelers Based on Spectrum Suppression Approach","subitem_title_language":"en"}]},"item_type_id":"4","owner":"3","path":["936"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-10-03"},"publish_date":"2017-10-03","publish_status":"0","recid":"9750","relation_version_is_last":true,"title":["スペクトルサプレッション法によるノイズキャンセラの音質改善(音響信号処理/一般)"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-07-28T01:49:58.491137+00:00"}