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An often encountered problem in using the conventional linear prediction analysis is due to the harmonic structure of the excitation source of voiced speech. This harmonic characteristic is coupled with the estimation of autoregressive (AR) coefficients that results in difficulties in estimating the vocal tract filter. This paper models the effective voice source from the residual obtained through the covariance analysis in the first-pass which is then used as input to the second-pass least-square analysis. A better source-filter separation is thus achieved. The formant frequencies and corresponding bandwidths obtained using the proposed method for synthetic vowels are found to be accurate up to a factor of more than three (in percent) compared to the conventional method. Since the source characteristic is taken into account, local variations due to the positioning of analysis window are reduced significantly. The validity of the proposed method is also examined by inspecting the spectra obtained from natural vowel sounds uttered by high-pitched female speaker.", "subitem_description_type": "Abstract"}]}, "item_119_description_21": {"attribute_name": "注記", "attribute_value_mlt": [{"subitem_description": "copyright(c)2006 IEICE\n許諾番号：07RB0174　\nhttp://www.ieice.org/jpn/trans_online/index.html", "subitem_description_type": "Other"}]}, "item_119_description_29": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"subitem_description": "text", "subitem_description_type": "Other"}]}, "item_119_description_30": {"attribute_name": "フォーマット", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_119_publisher_11": {"attribute_name": "出版者名", "attribute_value_mlt": [{"subitem_publisher": "社団法人電子情報通信学会"}]}, "item_119_relation_7": {"attribute_name": "著者 外部リンク", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "\u0026EMPTY\u0026"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "\u0026EMPTY\u0026", "subitem_relation_type_select": "URI"}}, {"subitem_relation_name": [{"subitem_relation_name_text": "http://s-read.saitama-u.ac.jp/researchers/pages/researcher/BuBfsmBx"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://s-read.saitama-u.ac.jp/researchers/pages/researcher/BuBfsmBx", "subitem_relation_type_select": "URI"}}]}, "item_119_source_id_14": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "09168532", "subitem_source_identifier_type": "ISSN"}]}, "item_119_text_3": {"attribute_name": "著者 ローマ字", "attribute_value_mlt": [{"subitem_text_value": "RAHMAN, M. Shahidur"}, {"subitem_text_value": "SHIMAMURA, Tetsuya"}]}, "item_119_text_32": {"attribute_name": "アイテムID", "attribute_value_mlt": [{"subitem_text_value": "A1003075"}]}, "item_119_text_35": {"attribute_name": "公開日(XooNIps)", "attribute_value_mlt": [{"subitem_text_value": "Oct 4, 2007 09:00:00"}]}, "item_119_text_36": {"attribute_name": "最終更新日(XooNIps)", "attribute_value_mlt": [{"subitem_text_value": "Sep 7, 2009 15:04:15"}]}, "item_119_text_37": {"attribute_name": "更新履歴(XooNIps)", "attribute_value_mlt": [{"subitem_text_value": "Sep 7, 2009  フリーキーワード, 著者 を変更"}, {"subitem_text_value": "Mar 18, 2009  フリーキーワード, キーワード を変更"}, {"subitem_text_value": "Oct 10, 2008  フリーキーワード, インデックス, キーワード を変更"}, {"subitem_text_value": "Feb 28, 2008  フリーキーワード, インデックス, キーワード を変更"}, {"subitem_text_value": "Feb 14, 2008  フリーキーワード, インデックス, キーワード を変更"}, {"subitem_text_value": "Oct 20, 2007  フリーキーワード, インデックス, キーワード を変更"}, {"subitem_text_value": "Oct 12, 2007  フリーキーワード, キーワード を変更"}, {"subitem_text_value": "Oct 12, 2007  フリーキーワード, キーワード を変更"}, {"subitem_text_value": "Oct 5, 2007  コメント, ID, フリーキーワード, インデックス, キーワード を変更"}]}, "item_119_text_38": {"attribute_name": "登録者(XooNIps)", "attribute_value_mlt": [{"subitem_text_value": "sucra_jim4"}]}, "item_119_text_39": {"attribute_name": "閲覧数(XooNIps)", "attribute_value_mlt": [{"subitem_text_value": "1413"}]}, "item_119_text_4": {"attribute_name": "著者 所属", "attribute_value_mlt": [{"subitem_text_value": "埼玉大学工学部情報工学科"}, {"subitem_text_value": "埼玉大学大学院理工学研究科数理電子情報部門情報システム工学領域"}]}, "item_119_text_40": {"attribute_name": "ダウンロード数(XooNIps)", "attribute_value_mlt": [{"subitem_text_value": "1047"}]}, "item_119_text_41": {"attribute_name": "XooNIps_インデックス", "attribute_value_mlt": [{"subitem_text_value": "sucra_jim4|Public/埼玉大学/理工学研究科|Public/埼玉大学/理工学研究科/数理電子情報部門|Public/主題別/総合領域/情報学/知覚情報処理・知能ロボティクス|Public/ジャンル別/学術雑誌論文(国内)/電子情報通信学会"}]}, "item_119_text_42": {"attribute_name": "XooNIps_ITEM_KEY", "attribute_value_mlt": [{"subitem_text_value": "835"}]}, "item_119_text_5": {"attribute_name": "著者 所属(別言語)", "attribute_value_mlt": [{"subitem_text_value": "Department of Information and Computer Sciences, Saitama University"}, {"subitem_text_value": "Graduate School of Science and Engineering, Saitama University"}]}, "item_119_text_9": {"attribute_name": "年月次", "attribute_value_mlt": [{"subitem_text_value": "2006-3"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "RAHMAN, M. 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