{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00009276","sets":["581:582:584"]},"path":["584"],"owner":"1","recid":"9276","title":["ニュース番組の収録音声を利用した波形接続型音声合成システム"],"pubdate":{"attribute_name":"公開日","attribute_value":"2009-02-15"},"_buckets":{"deposit":"4512773d-e9ea-45b6-a78e-c6d6f2611b4c"},"_deposit":{"id":"9276","pid":{"type":"depid","value":"9276","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"ニュース番組の収録音声を利用した波形接続型音声合成システム","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ニュース番組の収録音声を利用した波形接続型音声合成システム"},{"subitem_title":"Concatenative Speech Synthesis System Using Recordings of Japanese Broadcast News Programs as a Speech Database","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"特集：音声ドキュメント処理","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"2009-02-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"日本放送協会放送技術研究所"},{"subitem_text_value":"日本放送協会放送技術研究所"},{"subitem_text_value":"財団法人NHKエンジニアリングサービス"},{"subitem_text_value":"日本放送協会放送技術研究所"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Science and Technical Research Laboratories, Japan Broadcasting Corporation","subitem_text_language":"en"},{"subitem_text_value":"Science and Technical Research Laboratories, Japan Broadcasting Corporation","subitem_text_language":"en"},{"subitem_text_value":"NHK Engineering Services, Inc.","subitem_text_language":"en"},{"subitem_text_value":"Science and Technical Research Laboratories, Japan Broadcasting Corporation","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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/9276/files/IPSJ-JNL5002014.pdf","label":"IPSJ-JNL5002014"},"date":[{"dateType":"Available","dateValue":"2011-02-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL5002014.pdf","filesize":[{"value":"615.8 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"8"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"42df56d2-c197-4905-8810-040f6dafdd9e","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2009 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"世木, 寛之"},{"creatorName":"田高, 礼子"},{"creatorName":"清山, 信正"},{"creatorName":"都木, 徹"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hiroyuki, Segi","creatorNameLang":"en"},{"creatorName":"Reiko, Tako","creatorNameLang":"en"},{"creatorName":"Nobumasa, Seiyama","creatorNameLang":"en"},{"creatorName":"Tohru, Takagi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_2_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00116647","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_2_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7764","subitem_source_identifier_type":"ISSN"}]},"item_2_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"大規模な音声データベースから音声データを選択して接続する波形接続型音声合成が提案されている．この音声合成方式で利用される大規模音声データベースは，音韻バランスなどを考慮して選定された文章を，音声合成に適した話速やスタイルで読み上げることで作成されることが多い．一方，放送局では過去に放送された番組が大量に保存されているため，これらを音声データベースとして利用することが考えられる．本研究では，ニュース番組の収録音声を，波形接続型音声合成システムの音声データベースとして利用することを試みた．高い頻度で音声データベースに存在する音素列を，前後の音素環境を考慮して抽出した\"音素環境依存音素列\"を探索単位として合成音を作成し，5段階のオピニオン評価実験を行った結果，MOSは4.01となり，「不自然な部分はあるが気にならない」という自然性を持つ合成音が得られた．特に，全体の39.8%が5の「自然である」と評価され，自然音声と変わらない品質の合成音がかなりの頻度で作成されていることが分かった．次に，目標スコアを用いた場合と，用いない場合の合成音とを比較したところ，MOSの差は0.18となり，音声データベースの発話内容と合成する文が類似している場合には，必ずしも韻律予測せず目標スコアを考慮しなくても，自然性の高い合成音を作成できる可能性が示された．","subitem_description_type":"Other"}]},"item_2_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Proposals have been made to implement a system that generates synthesized speech by concatenating segments of speech stored in large databases. While these databases are often created by recording sentences with a specific phonetic balance, read at a rate and in a style that are optimal for speech synthesis, this paper explores an alternative method of database creation, one that utilizes broadcast materials archived in networks. In our study, we used samples of recorded speech from news programs to create a speech database. An assessment of speech generated by the speech synthesis method using \"context dependent phoneme sequences\" as search units yielded the mean opinion score (MOS) of 4.01 in a one-to-five-scale rating. Overall, the samples were considered \"somewhat unnatural but not bothersome.\" In particular, 39.8% of the entire samples scored 5.0, demonstrating their highly natural-sounding quality. In addition, we compared the evaluation on \"synthesized speech with target scores\" and that on \"synthesized speech without target scores.\" The difference of MOS was 0.18. This result confirmed that prosody prediction or target scores are not necessarily required to create synthesized speech of natural-sounding quality when the content of input sentences is similar to the content of sentences stored in the database.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"586","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"575","bibliographicIssueDates":{"bibliographicIssueDate":"2009-02-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicVolumeNumber":"50"}]},"relation_version_is_last":true,"item_2_alternative_title_2":{"attribute_name":"その他タイトル","attribute_value_mlt":[{"subitem_alternative_title":"音声合成"}]},"weko_creator_id":"1"},"updated":"2025-01-21T22:39:52.483491+00:00","created":"2025-01-18T22:44:32.288478+00:00","links":{},"id":9276}