Directivity control based on body motion for next generation binaural hearing aids

• Project/Area Number: 24500147
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Media informatics/Database
• Research Institution: Kumamoto University
• Principal Investigator: CHISAKI YOSHIFUMI 熊本大学, 自然科学研究科, 准教授 (50284740)
• Co-Investigator(Kenkyū-buntansha): USAGAWA Tsuyoshi 熊本大学, 大学院自然科学研究科, 教授 (30160229)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: バーチャルリアリティ / 両耳補聴器 / 指向特性 / 身体動作 / 頭部運動 / コミュニーケーションゾーン / コミュニケーションゾーン

Outline of Final Research Achievements

Purpose of the research is to archiveve control directivity of binaural hearing system based on Body motion. It makes not only natural active hearing, but also naturality in sound when environmental background sound is added. Human beings perform hearing multiple sound sources with active recognition and body motion in natural conversation. For the active hearing of multiple sound simultaneously based on body motion, relationship between heaing and body motion is studied with taking into account of inverse model of perception, recognition and action.

Research Products

• [Presentation] An approach to realtime implement of frequency domain binaural model on Linux with ALSA driver (2015)
  • Author(s): Yuki Nishi, Yoshifumi Chisaki and Tsuyoshi Usagawa
  • Organizer: The seventh Kyushu and Youngnam Joint Conference on Acoustics
  • Place of Presentation: Nagasaki University
  • Year and Date: 2015-01-10
• [Presentation] Improvement in estimation accuracy of a sound source direction by a frequency domain binaural model with information on listener's head movement in a conversation (2014)
  • Author(s): Yoshifumi Chisaki, Shogo Tanaka
  • Organizer: Asia-Pacific Signal and Information Processing Association Annual Summit and Conference
  • Place of Presentation: Cambodia
  • Year and Date: 2014-12-09 – 2014-12-12
• [Presentation] 会話中における聴取者の頭部方向推定による周波数領域両耳聴モデルの音源方向推定改善の検討 (2014)
  • Author(s): 吉井俊祐, 田中 章悟, 苣木 禎史
  • Organizer: 平成26年度(第67回)電気・情報関係学会九州支部連合大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2014-09-18 – 2014-09-19
• [Presentation] 会話中における話者の方向と聴取者の頭部方向との関連性の検討 (2014)
  • Author(s): 田中 章悟, 苣木 禎史
  • Organizer: 火の国情報シンポジウム2014
  • Place of Presentation: 大分・大分大学旦野原キャンパス
• [Presentation] 聴取者の頭部動作による複数話者の方向推定 (2014)
  • Author(s): 田中 章悟, 苣木 禎史, 宇佐川 毅
  • Organizer: 情報処理学会全国大会
  • Place of Presentation: 東京都・東京電機大学千住キャンパス
• [Presentation] Network-Based Multi-Channel Signal Processing Using the Precision Time Protocol (2012)
  • Author(s): Yoshifumi Chisaki, Dan Murakami, Tsuyoshi Usagawa
  • Organizer: Asia Pacific Signal and Information Processing Association, Annual Summit and Conference 2012
  • Place of Presentation: Hollywood, USA