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A study for 3D audio technique to share immersive space

Research Project

Project/Area Number 19500178
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Sensitivity informatics/Soft computing
Research InstitutionChiba Institute of Technology

Principal Investigator

YANAGAWA Hirofumi  Chiba Institute of Technology, 情報科学部, 教授 (70296309)

Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords音像定位 / 信号間レベル差 / 信号間時間差 / 複数話者 / 同時発話 / ICLD / ICTD / 適応フィルタ / 没入感 / 聞き取りやすさ / 狭帯域パルス / Narrow Band Pulse / 頭部伝達関数
Research Abstract

AVS is a method of localizing a sound image aside even by two loudspeakers in front of a listener. In this study, it was found that (1) by searching ICLD and ICTD, the sound image localized aside even in strong lateral reflections, (2) an allowance of ICTD was found, which cannot be explained by conventional theory of sound image localization, (3) three speeches reproduced by AVS shows same easiness of hearing as reproduced those by three loudspeakers separately.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (12 results)

All 2008 2007

All Presentation (10 results) Patent(Industrial Property Rights) (2 results)

  • [Presentation] 低周波数帯域における両耳間相関係数の弁別2008

    • Author(s)
      楳田美奈子, 柳川博文, 末廣一美, 高山泰典, 福島学
    • Organizer
      日本音響学会講演論文集
    • Place of Presentation
      福岡
    • Year and Date
      2008-09-12
    • Related Report
      2009 Final Research Report
  • [Presentation] マルチチャンネル音楽コンテンツのチャンネル間相関と空間的印象2008

    • Author(s)
      久保田薫, 柳川博文, 末廣一美, 高山泰典, 福島学
    • Organizer
      日本音響学会講演論文集
    • Place of Presentation
      福岡
    • Year and Date
      2008-09-10
    • Related Report
      2009 Final Research Report
  • [Presentation] 信号間レベル差及び時間差を用いた音像定位制御における帯域幅の検討2008

    • Author(s)
      西村一行, 岩上知広, 柳川博文, 波々伯部龍人, 福島学
    • Organizer
      日本音響学会講演論文集
    • Place of Presentation
      福岡
    • Year and Date
      2008-09-10
    • Related Report
      2009 Final Research Report
  • [Presentation] 信号間レベル差及び時間差を用いた音像定位制御における帯域幅の検討2008

    • Author(s)
      西村一行
    • Organizer
      日本音響学会
    • Place of Presentation
      九州大学
    • Year and Date
      2008-09-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] 反射のある室における狭帯域ICTDおよび狭帯域ICLDによる音像定位領域拡大手法の実験的検討2007

    • Author(s)
      高岡創, 棚原憲照, 西村一行, 白石健, 柳川博文, 福島学, 岡本壽夫
    • Organizer
      日本音響学会講演論文集
    • Place of Presentation
      甲府
    • Year and Date
      2007-09-21
    • Related Report
      2009 Final Research Report
  • [Presentation] 音像定位領域拡大手法における試験音の検討~狭帯域パルスと狭帯域ノイズの比較検討~2007

    • Author(s)
      西村一行, 白石健, 柳川博文, 高岡創, 棚原憲照, 福島学
    • Organizer
      日本音響学会講演論文集
    • Place of Presentation
      甲府
    • Year and Date
      2007-09-21
    • Related Report
      2009 Final Research Report
  • [Presentation] 反射のある室における狭帯域ICTDおよび狭帯域ICLDによる音像定位領域拡大手法の実験的検討2007

    • Author(s)
      高岡, 棚原, 西村, 福島, 柳川, 他
    • Organizer
      日本音響学会
    • Place of Presentation
      山梨大学
    • Year and Date
      2007-09-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] 音像定位領域拡大手法における試験音の検討 〜狭帯域パルスと狭帯域ノイズの比較検討〜2007

    • Author(s)
      西村, 高岡, 棚原, 福島, 柳川, 他
    • Organizer
      日本音響学会
    • Place of Presentation
      山梨大学
    • Year and Date
      2007-09-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] Expanding sound image localization by using narrowband inter- channel time and level differences2007

    • Author(s)
      Takeshi Shiraishi, Kazuyuki Nishimura, Hirofumi Yanagawa, Manabu Fukushima
    • Organizer
      Audio Engineering Society Convention
    • Place of Presentation
      Tokyo
    • Year and Date
      2007-07-21
    • Related Report
      2009 Final Research Report
  • [Presentation] Expanding sound image localization by using narrowband inter-channel time and level differences2007

    • Author(s)
      T.Shiraishi, K.Nishimura, H.Yanagawa, and M.Fukushima
    • Organizer
      Audio Engineeing Society
    • Place of Presentation
      科学技術館
    • Year and Date
      2007-07-21
    • Related Report
      2007 Annual Research Report
  • [Patent(Industrial Property Rights)] 音像定位フィルタ及びこれを用いた音響信号処理装置並びに音響信号処理方法2008

    • Inventor(s)
      柳川博文
    • Industrial Property Rights Holder
      千葉工業大学
    • Industrial Property Number
      2008-145500
    • Filing Date
      2008-06-03
    • Related Report
      2009 Final Research Report
  • [Patent(Industrial Property Rights)] 反射音生成装置2008

    • Inventor(s)
      柳川博文
    • Industrial Property Rights Holder
      千葉工業大学
    • Industrial Property Number
      2008-145501
    • Filing Date
      2008-06-03
    • Related Report
      2009 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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