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Development of active multiple sound spot synthesis systems

Research Project

Project/Area Number 18K11387
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 61010:Perceptual information processing-related
Research InstitutionNational Institute of Information and Communications Technology

Principal Investigator

Okamoto Takuma  国立研究開発法人情報通信研究機構, ユニバーサルコミュニケーション研究所先進的音声翻訳研究開発推進センター, 主任研究員 (10551567)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords局所再生 / マルチスポット再生 / 音場収録 / 音場制御 / マイクロホンアレイ / スピーカアレイ / 空間フーリエ変換 / 近傍エリア再生 / 近傍エリア収録 / マルチ音場制御 / オクルージョン問題 / 音場分離 / 多重拡散 / 重み付きモード制御法 / バッフル型円形スピーカアレイ / 接話収録 / アンビソニクス / 音場推定 / スポット再生 / 3次元平面音場収録 / 3次元平面音場再生 / 平面複数円形アレイ / 球面調和展開 / アンビソニックス / エリア再生 / 球面調和関数 / サウンドスポット
Outline of Final Research Achievements

To realize active multiple sound spot synthesis system, this study proposed (1) undesired propagation free sound field synthesis method, (2) recording and synthesis horizontal 3D sound field method with planar microphone and loudspeaker arrays, (3) localized sound recording and synthesis methods with planar microphone and loudspeaker arrays, (4) multizone sound field synthesis method based on sound field separation, and (5) multizone sound field synthesis method with multiple baffled circular loudspeaker arrays.
Active multiple sound spot synthesis systems for actual implementations can be realized by (1) estimating a target horizontal 3D sound field with a planar microphone array, (2) cancelling the target sound field by horizontal 3D sound field synthesis with a planar loudspeaker array, and (3) synthesizing another horizontal 3D sound field with the loudspeaker array.

Academic Significance and Societal Importance of the Research Achievements

3次元音空間のうち水平面成分のみを平面配置のマイクロホンアレイを用いて収録・推定する技術および平面スピーカアレイを用いて推定した水平面3次元音場を再現する技術を提案した.従来は3次元音場の収録・制御には3次元配置が必要であった課題に対して,人間の耳は水平面についていることにも起因し,2次元平面に配置したマイクロホンおよびスピーカアレイで音場収録・再現可能なことは音場収録・制御システムを実装・社会展開する上でも重要な成果である.さらに,本研究において提案したアクティブマルチスポット再生技術も,多言語同時通訳やその他エンターテインメント等での応用も期待でき,社会的意義は大いにあると言える.

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (32 results)

All 2023 2022 2021 2020 2019 2018 Other

All Journal Article (2 results) (of which Open Access: 2 results,  Peer Reviewed: 1 results) Presentation (22 results) (of which Int'l Joint Research: 8 results,  Invited: 5 results) Remarks (5 results) Patent(Industrial Property Rights) (3 results)

  • [Journal Article] アンビソニクスとVR2020

    • Author(s)
      岡本 拓磨
    • Journal Title

      Journal of the Virtual Reality Society of Japan

      Volume: 25 Issue: 2 Pages: 25-28

    • DOI

      10.18974/jvrsj.25.2_25

    • NAID

      130007991878

    • ISSN
      1342-6680, 2435-8746
    • Year and Date
      2020-06-30
    • Related Report
      2020 Research-status Report
    • Open Access
  • [Journal Article] Mode-matching-based sound field recording and synthesis with circular double-layer arrays2018

    • Author(s)
      Takuma Okamoto
    • Journal Title

      Applied Sciences

      Volume: 8 Issue: 7 Pages: 1-17

    • DOI

      10.3390/app8071084

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Portable multilingual sound spot synthesis system with a compact circular array of 16 loudspeakers2023

    • Author(s)
      Takuma Okamoto, Katsushi Ueno, Tsukasa Okabe, Kentaro Tani, Yasuhiko Yoshikata, Miyuki Sudo, Manae Kuwahara, and Keita Hikita
    • Organizer
      ICASSP 2023 Show & Tell Demo Session
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マルチスポット再生 meets 多言語ニューラル音声合成 ~実装 is ホンマに all we need~2023

    • Author(s)
      岡本拓磨
    • Organizer
      信学技報, vol. 122, no. 389, SP2022-51, pp. 73-76
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 時変空間フィルタリングに基づく再生信号適応型マルチスポット再生2023

    • Author(s)
      岡本拓磨
    • Organizer
      日本音響学会2023年春季研究発表会講演論文集, pp. 121-124
    • Related Report
      2022 Annual Research Report
  • [Presentation] Multilingual sound spot synthesis systems2023

    • Author(s)
      Takuma Okamoto
    • Organizer
      Internoise 2023
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高品質ニューラル音声合成×ト×音声マルチスポット再生 -やはり実装 is all we need-2022

    • Author(s)
      岡本拓磨
    • Organizer
      日本音響学会第23回サマーセミナー「音響学の基礎と最近のトピックス」
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 16チャネル小型円形スピーカアレイを用いたマルチスポット再生システムの実装2022

    • Author(s)
      岡本拓磨,大山慎二,上野克司,岡部司,谷 健太郎
    • Organizer
      日本音響学会2022年秋季研究発表会講演論文集, pp. 243-246
    • Related Report
      2022 Annual Research Report
  • [Presentation] 複数バッフル型円形アレイを用いた多重拡散を考慮した音場制御2022

    • Author(s)
      岡本拓磨
    • Organizer
      日本音響学会2022年春季研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] Close-talking recording with planarly distributed microphones2021

    • Author(s)
      Takuma Okamoto
    • Organizer
      46th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 2D multizone sound field synthesis with interior-exterior Ambisonics2021

    • Author(s)
      Takuma Okamoto
    • Organizer
      IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 音場分離と内部外部同時制御に基づくマルチ音場制御2021

    • Author(s)
      岡本拓磨
    • Organizer
      日本音響学会2021年秋季研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 平面マイクロホンアレイを用いた接話収録2021

    • Author(s)
      岡本拓磨
    • Organizer
      日本音響学会2021年春季研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 平面アレイと鉛直スピーカ対を用いた3次元近傍エリア再生2020

    • Author(s)
      岡本拓磨
    • Organizer
      日本音響学会2020年秋季研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 平面分散マイクロホンを用いた水平面3次元音場収録2020

    • Author(s)
      岡本拓磨
    • Organizer
      日本音響学会2020年春季研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 3D localized sound zone generation with a planar omni-directional loudspeaker array2019

    • Author(s)
      Takuma Okamoto
    • Organizer
      IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Spatial Fourier transform-based localized sound zone generation methods with loudspeaker arrays2019

    • Author(s)
      Takuma Okamoto
    • Organizer
      178th meeting of the Acousical Society of America
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 平面複数円形アレイを用いた3次元近傍エリア再生2019

    • Author(s)
      岡本拓磨
    • Organizer
      日本音響学会2019年秋季研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] Horizontal 3D sound field recording and 2.5D synthesis with omni-directional circular arrays2019

    • Author(s)
      Takuma Okamoto
    • Organizer
      44th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2019)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] スピーカアレイを用いた空間フーリエ変換に基づく局所再生2019

    • Author(s)
      岡本拓磨
    • Organizer
      音響・超音波サブソサイエティ合同研究会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 円形アレイを用いた水平面3次元音場の収録と再現2019

    • Author(s)
      岡本拓磨
    • Organizer
      日本音響学会2019年春季研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] 2.5D localized sound zone generation with a circular array of fixed-directivity loudspeakers2018

    • Author(s)
      Takuma okamoto
    • Organizer
      16th International Workshop on Acoustic Signal Enhancement (IWAENC 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 内部外部混合音場の収録と再現2018

    • Author(s)
      岡本拓磨
    • Organizer
      日本音響学会2018年秋季研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] たくさんのマイクやスピーカでできること:基礎・応用とこれから2018

    • Author(s)
      岡本拓磨
    • Organizer
      けいはんな情報通信フェア2018サイエンストーク
    • Related Report
      2018 Research-status Report
  • [Remarks] Takuma OKAMOTO, Ph.D.

    • URL

      https://www.okamotocamera.com

    • Related Report
      2022 Annual Research Report 2020 Research-status Report
  • [Remarks] 岡本 拓磨

    • URL

      https://www.okamotocamera.com/index_j.html

    • Related Report
      2022 Annual Research Report 2019 Research-status Report 2018 Research-status Report
  • [Remarks] NICTとのオープンイノベーションで新ビジネスを NICT × YOU

    • URL

      https://ast-astrec.nict.go.jp/MultipleSoundSpotSynthesis/

    • Related Report
      2022 Annual Research Report
  • [Remarks] NICT研究職採用ページインタビュー記事

    • URL

      https://www2.nict.go.jp/employment/researcher/okamoto-takuma.html

    • Related Report
      2020 Research-status Report
  • [Remarks] Takuma OKAMOTO, Ph.D.

    • URL

      https://www.okamotocamera.com/index.html

    • Related Report
      2019 Research-status Report 2018 Research-status Report
  • [Patent(Industrial Property Rights)] 音場制御装置,音場制御方法およびプログラム2023

    • Inventor(s)
      岡本拓磨
    • Industrial Property Rights Holder
      岡本拓磨
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2023-023769
    • Filing Date
      2023
    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] 音場制御装置,音場制御システム,音場制御方法およびプログラム2022

    • Inventor(s)
      岡本拓磨
    • Industrial Property Rights Holder
      岡本拓磨
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-007150
    • Filing Date
      2022
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] 音場制御装置,音場制御システム,音場制御方法およびプログラム2021

    • Inventor(s)
      岡本拓磨
    • Industrial Property Rights Holder
      岡本拓磨
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-121174
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

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Published: 2018-04-23   Modified: 2024-01-30  

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