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2008 Fiscal Year Final Research Report

Tone-Tunable Environment-Adaptive Digital Hearing Aids Using Variable Magnitude Filters

Research Project

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Project/Area Number 18560388
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Communication/Network engineering
Research InstitutionToho University

Principal Investigator

ITO Noboru  Toho University, 理学部, 教授 (00237041)

Project Period (FY) 2006 – 2008
Keywords補聴器 / 可変フィルタ / フィルタバンク / 可変フィルタバンク / オージオグラム
Research Abstract

補聴器はアナログからディジタルへ主流になりつつある。ディジタル補聴器は、アナログ素子のものと比べると、入力されてきた音声信号に多様な処理を施すことが容易に実現できるため、「fitting」の際に要求される細かい調節が可能である。しかし、補聴器を必要とする難聴者の聴力特性は千差万別であり、おのおのの聴力に適したfittingが行える従来のディジタル補聴器は、計算量・電力消費が多くて、コストが高いなどの問題点が挙げられる。本研究では、低次数でも比較的特性の優れた3種類の可変IIRディジタルフィルタ(可変低域通過ディジタルフィルタ、可変帯域通過ディジタル、可変高域通過ディジタルフィルタで構成される3チャンネル可変ディジタルフィルタバンク(variable filter-bank : VFB)を設計し、消費電力とコストパフォーマンスの悪さの要因になっている計算量を軽減し、かつ最適なfittingが可能なディジタル補聴器の設計法を開発した。

  • Research Products

    (24 results)

All 2009 2008 2007 2006 Other

All Journal Article (4 results) Presentation (19 results) Remarks (1 results)

  • [Journal Article] Generalized Pascal matrices, inverses, computations and properties using one-to-one rational polynomial s-z transformations2008

    • Author(s)
      T.-B. Deng, S. Chivapreecha, and K. Dejhan
    • Journal Title

      IEEE Trans. Circuits Syst. I : Regular Papers vol.55, no.9

      Pages: 2650-2663

  • [Journal Article] Symmetric structures for odd-order maximally flat and weighted-least-squares variable fractional-delay filters2007

    • Author(s)
      T.-B. Deng
    • Journal Title

      IEEE Trans. Circuits Syst. I : Regular Papers vol.54, no.12

      Pages: 2718-2732

  • [Journal Article] Coefficient-symmetries for implementing arbitrary-order Lagrange-type variable fractional-delay digital filters2007

    • Author(s)
      T.-B. Deng
    • Journal Title

      IEEE Trans. Signal Process vol.55, no.8

      Pages: 4078-4090

  • [Journal Article] Weighted-least-squares design of variable fractional-delay FIR filters using coefficient symmetry2006

    • Author(s)
      T.-B. Deng and Y. Lian
    • Journal Title

      IEEE Trans. Signal Processing vol.54, no.8

      Pages: 3023-3038

  • [Presentation] Three-channel variable filter-bank for digital hearing aids2009

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2008 IEEE International Symposium on Intelligent Signal Processing and Communication Systems(ISPACS 2008)
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      20090208-11
  • [Presentation] Low-complexity three-channel variable filter-bank using coefficient- symmetries2008

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2008 IEEE International Symposium on Communications and Information Technologies(ISCIT 2008)
    • Place of Presentation
      Vientiane, Laos
    • Year and Date
      20081021-23
  • [Presentation] Recurrent formula and property of generalized Pascal matrix2008

    • Author(s)
      T.-B. Deng, S. Chivapreecha, and K. Dejhan
    • Organizer
      Proc. 2008 International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC 2008)
    • Place of Presentation
      Shimonoseki, Japan
    • Year and Date
      20080706-09
  • [Presentation] Generalized Pascal matrices and inverses using one-to-one rational polynomial s-z transformations2008

    • Author(s)
      T.-B. Deng, S. Chivapreecha, and K. Dejhan
    • Organizer
      Proc. 2008 International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC 2008)
    • Place of Presentation
      Shimonoseki, Japan
    • Year and Date
      20080706-09
  • [Presentation] Generalized structure for designing odd-order variable fractional-delay filters2008

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2008 IEEE International Symposium on Circuits and Systems(ISCAS 2008)
    • Place of Presentation
      Seattle, USA
    • Year and Date
      20080518-21
  • [Presentation] Low-complexity structure for designing odd-order variable fractional-delay filters2008

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2008 International Conference on Embedded Systems and Intelligent Technology(ICESIT 2008)
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      20080227-29
  • [Presentation] Weighted-least-squares design of odd-order variable fractional-delay filters using coefficient-symmetry2007

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2007 IEEE International Conference on Information, Communications and Signal Processing(ICICS 2007)
    • Place of Presentation
      Singapore
    • Year and Date
      20071210-13
  • [Presentation] Arbitrary-order noncausal Lagrangetype variable fractional-delay digital filters2007

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2007 IEEE International Conference on Information, Communications and Signal Processing(ICICS 2007), P0217
    • Place of Presentation
      Singapore
    • Year and Date
      20071210-13
  • [Presentation] Transformation matrix for odd-order Lagrange-type variable fractional-delay filters2007

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2007 IEEE International Conference on Information, Communications and Signal Processing(ICICS 2007), P0214
    • Place of Presentation
      Singapore
    • Year and Date
      20071210-13
  • [Presentation] Symmetric structures for even-order Lagrange-type variable fractional-delay filters2007

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2007 IEEE International Conference on Intelligent & Advanced Systems(ICIAS 2007), SignalP2 : 194-197
    • Place of Presentation
      Kuala Lumpur, Malaysia
    • Year and Date
      20071125-28
  • [Presentation] Efficient implementation of odd-order Lagrange-type variable fractional-delay digital filters2007

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2007 IEEE Asia-Pacific Conference on Communications(APCC 2007) pp.441-444
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      20071018-20
  • [Presentation] Structure transformation for odd-order Lagrange-type variable fractional-delay filters2007

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2007 International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC 2007), vol.3, pp.1035-1036
    • Place of Presentation
      Busan, Korea
    • Year and Date
      20070708-11
  • [Presentation] High-speed and low-cost structures for implementing odd-order Lagrange-type variable fractional-delay filters2007

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2007 IEEE International Symposium on Circuits and Systems(ISCAS 2007), pp.3435-3438
    • Place of Presentation
      New Orleans, USA
    • Year and Date
      20070527-30
  • [Presentation] Symmetry development for implementing odd-order Lagrange-type variable fractional-delay filters2006

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2006 IEEE Asia Pacific Conference on Circuits and Systems(APCCAS 2006), pp.57-60
    • Place of Presentation
      Singapore
    • Year and Date
      20061204-07
  • [Presentation] Weighted least-squares design of wide-band interpolation kernel2006

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2006 IEEE International Symposium on Communications and Information Technologies(ISCIT 2006), pp.W4A-6
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      20061018-20
  • [Presentation] High-speed and low-cost structures for implementing odd-order Lagrange-type variable fractional-delay filters2006

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2006 IEEE International Symposium on Communications and Information Technologies(ISCIT 2006), pp.W4A-5
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      20061018-20
  • [Presentation] High-resolution image interpolation using Lagrange-type variable fractional-delay filter2006

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2006 International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC 2006), vol.II, pp.541-544
    • Place of Presentation
      Chiang Mai, Thailand
    • Year and Date
      20060710-13
  • [Presentation] An explicit formula for arbitrary-order Lagrange-type variable fractional-delay filters2006

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2006 International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC 2006), vol.II, pp.537-540
    • Year and Date
      20060710-13
  • [Presentation] Coefficient symmetry for implementing odd-order Lagrange-type variable fractional-delay filters2006

    • Author(s)
      T.-B. Deng
    • Organizer
      Proc. 2006 IEEE International Conference on Acoustics, Speech, and Signal Processing(ICASSP), vol.III, pp.564-567
    • Place of Presentation
      Toulouse, France
    • Year and Date
      20060514-19
  • [Remarks] IEEE ISCIT'06の最優秀論文賞受賞

    • URL

      http://www.lab.toho-u.ac.jp/sci/is/deng

URL: 

Published: 2010-06-10   Modified: 2016-04-21  

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