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"Two Ears Are Better Than One": Towards the Development of a Real-Time Crosstalk Cancellation System Based on Bone Conduction

Research Project

Project/Area Number 22K17904
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 61010:Perceptual information processing-related
Research InstitutionChiba University

Principal Investigator

IRWANSYAH IRWANSYAH  千葉大学, フロンティア医工学センター, 特任助教 (60929818)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsHearing / Bone Conduction / Crosstalk / Cancellation / Bone Transducer / Binaural Hearing / Silicone Pinna / Cartilage Conduction / bone conduction / crosstalk / binaural hearing / bone transducer / cancellation
Outline of Research at the Start

A bone-conduction (BC) sound presented on either side of the head reaches the cochlea in both ears. This “crosstalk” phenomenon is considered one factor limiting the ability to understand the surroundings better with two ears when using a pair of BC hearing devices. This project proposes an implementation of the “crosstalk cancellation” method on the human head as a solution to suppress BC “crosstalk” sounds. In this study, psychoacoustic tests will be carried out to confirm the effectiveness of the proposed crosstalk cancellation system.

Outline of Final Research Achievements

Crosstalk in bone conduction (BC) hearing devices presents a challenge by transmitting sound to the unintended ear, affecting binaural hearing benefits such as sound localization. Our research tackles this by developing a method to cancel crosstalk at an accelerometer on the mastoid via an adaptive FxLMS algorithm to generate an anti-crosstalk signal, aiming for the cancellation effect to extend to the cochlea. Despite mastoid cancellation, testing with pure-tone hearing thresholds indicated successful crosstalk reduction, as participants experienced lower thresholds in noise, suggesting effective cancellation. We further advanced our solution by implementing it in real-time, demonstrating practical applicability. Additionally, we explored combining this with lateralization tasks to refine crosstalk cancellation directly at the cochlea, aiming for a more targeted and effective approach. This series of innovations marks a significant step forward in improving BC hearing devices.

Academic Significance and Societal Importance of the Research Achievements

Our research demonstrates the potential to reduce crosstalk in bone conduction (BC) devices, a crucial step towards improved binaural hearing. While not yet fully realized, it shows promise for enhancing binaural perception in future BC device applications.

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (13 results)

All 2024 2023 2022

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (12 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] Unilateral crosstalk cancellation via bone conduction: Methods and evaluation2023

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Journal Title

      MethodsX

      Volume: 11 Pages: 102394-102394

    • DOI

      10.1016/j.mex.2023.102394

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Evaluating Cartilage Conduction: A Comparative Study of Sound Transmission in Artificial and Human Pinnas2024

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Organizer
      日本音響学会2024年春季研究発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 骨伝導の聞こえの改善を目指したクロストーク・キャンセリング手法の開発2023

    • Author(s)
      Irwansyah, 大塚 翔, 中川 誠司
    • Organizer
      第62回日本生体医工学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Cancelling Crosstalk Sound in Bone Conduction Hearing: An Accelerometer-Based Approach2023

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Organizer
      The 45th Int. Conf. of the IEEE Eng. in Medicine and Biology Society
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] FxLMS and Lateralization: A Combined Strategy for Crosstalk Cancellation in Bone Conduction2023

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Organizer
      The 52th International Congress and Expo on Noise Control Engineering (INTER-NOISE)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Crosstalk Cancellation in Bone Conduction Hearing: Human vs. Ballistic Dummy Head Study2023

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Organizer
      ライフエンジニアリング部門シンポジウム2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Comparing Sound Propagation in Silicone Pinna Models: The Effect of Vibrator Positioning2023

    • Author(s)
      Irwansyah, Akane Tamura, Sho Otsuka, Seiji Nakagawa
    • Organizer
      日本音響学会2023年秋季研究発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Towards Optimized Crosstalk Cancellation in Bone Conduction: An In-depth Exploration of FxLMS and Lateralization2023

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Organizer
      日本音響学会2023年秋季研究発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Exploring the Impact of Pinna Hardness and Vibrator Placement on Bone Conduction Through the Pinna2023

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Organizer
      The 44th Symposium on UltraSonic Electronics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Real-Time Implementation of Unilateral Crosstalk Cancellation Based on Bone Conduction2023

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Organizer
      The IEEE 41st International Conference on Consumer Electronics (ICCE)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Unilateral Crosstalk Cancellation in Bone Conduction Using an Accelerometer Placed at the Mastoid2022

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Organizer
      日本音響学会2022年秋季研究発表会
    • Related Report
      2022 Research-status Report
  • [Presentation] Effects of in-ear-sensor type on bone-conduction-based crosstalk cancellation: an assessment by tone reception thresholds2022

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Organizer
      The 24th International Congress on Acoustics (ICA) 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Towards Real-Time Crosstalk Cancellation for Application in Bone Conduction Hearing Devices2022

    • Author(s)
      Irwansyah, Sho Otsuka, Seiji Nakagawa
    • Organizer
      日本生体医工学会関東支部 若手研究者発表会 2022
    • Related Report
      2022 Research-status Report

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Published: 2022-04-19   Modified: 2025-01-30  

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