A speech reproduction system using flexible time-axis and speech database for researchers

2013 Fiscal Year Final Research Report

• Project/Area Number: 23500147
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Media informatics/Database
• Research Institution: The University of Electro-Communications
• Principal Investigator: TAKAHASHI Kota 電気通信大学, 情報理工学(系)研究科, 准教授 (10188005)
• Project Period (FY): 2011 – 2013
• Keywords: 話速変換 / 音声データベース / 話速推定

Research Abstract

Speaking rate estimation techniques for a reproduction system using flexible time-axis and signal processing techniques for a speaking rate conversion are studied. In the study period, the software research environment is expanded. In this expanded environment. signal processing is decomposed and described for every processing element, and a new signal processing method can be made by connecting elements. About the system with FPGA, the proposed method of a reproduction system was implemented on the evaluation board of Xilinx. Moreover, in this research, construction of a special speech database is also performed so that researchers all over the country can use free. At the time of the end of this academic study period, the database has 2216 sentences, and has already opened to the public.

Research Products

• [Presentation] 時間伸長音声のための局所的ピッチ変換規則の検討 (2013)
  • Author(s): 井上愛梨, 高橋弘太
  • Organizer: 電子情報通信学会, 応用音響研究会
  • Place of Presentation: 株式会社KDDI 研究所
  • Year and Date: 2013-03-12
• [Presentation] 長時間音声を聴くための時間節約技術とそのFPGA 実装 (2013)
  • Author(s): 鈴木達弘, 高橋弘太
  • Organizer: 電子情報通信学会マルチメディア情報ハイディング・エンリッチメント研究会
  • Place of Presentation: ATR(京都府)
  • Year and Date: 2013-02-28
• [Remarks] この研究費を使い, 収録, 編集して公開している話速バリエーション型音声データベース(略称:SRV-DB)は, 以下のアドレスからアクセスすることで, 研究者から学生まで全データを無料でダウンロードして自由に研究に役立てることが可能である.(ホームページによるデータベースの提供)
  • URL: http://www.it.ice.uec.ac.jp/SRV-DB/
• [Patent(Industrial Property Rights)] 再生装置 (2012)
  • Inventor(s): 高橋弘太, 政木康生
  • Industrial Property Rights Holder: 電気通信大学, 船井電機
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 特許第5093648号
  • Acquisition Date: 2012-09-28
• [Patent(Industrial Property Rights)] REPRODUCING APPARATUS (2012)
  • Inventor(s): Kota Takahashi, Yasuo Masaki
  • Industrial Property Rights Holder: The University of Electro -Communications, Funai Electric Co., Ltd
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: US8165888 B2
  • Acquisition Date: 2012-04-24
  • Overseas
• [Patent(Industrial Property Rights)] REPRODUCING APPARATUS (2012)
  • Inventor(s): Kota Takahashi, Yasuo Masaki
  • Industrial Property Rights Holder: The University of Electro -Communications, Funai Electric Co., Ltd
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: US8165459 B2
  • Acquisition Date: 2012-04-24
  • Overseas