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On an approach in implementing DSP algorithms for digital hearing aids; a noise reduction core case study

Published: 23 April 2007 Publication History

Abstract

One of the major problems for hearing aid users is surrounding noise. The objective of the project is to design a noise reduction hardware (integrated circuit) for digital hearing aids. Instead of relying on separate algorithm and hardware (integrated circuit) developments, a design flow that integrates the developments of DSP algorithms and FPGA hardware to increase performance and reduce development time is illustrated. A noise reduction core using integrated adaptive beamformer and feedback control is designed and tested as an example.

References

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Incidence/Prevalence of Sensorineural Hearing Impairment in Thailand and Southeast Asia", Audiology 2000, vol. 39
[2]
Dillon H., Hearing Aids, Boomerang press, 2000
[3]
www.health-news.co.uk
[4]
The Lancet, 2002, 359: 1466--1470.
[5]
Shreveport Times, 5 May, 2003.
[6]
Xinhua News Agency, Xinhua Economic News Service, July 2, 2002
[7]
Hänsler E. and Schmidt G., Acoustic Echo and Noise Control A practical Approach, John Wiley & son, 2004
[8]
Teutsh H. and Elko G. W., "First and second-order Adaptive Differential Microphone Arrays" Proc. Intl. Workshop on Acoustic Echo and Noise Control (IWAENC), (Darmstadt, Germany, September 2001)

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  • (2008)Future directions in hearing aid testing and evaluationProceedings of the 2nd International Convention on Rehabilitation Engineering & Assistive Technology10.5555/1983222.1983245(78-82)Online publication date: 13-May-2008

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    cover image ACM Conferences
    i-CREATe '07: Proceedings of the 1st international convention on Rehabilitation engineering & assistive technology: in conjunction with 1st Tan Tock Seng Hospital Neurorehabilitation Meeting
    April 2007
    272 pages
    ISBN:9781595938527
    DOI:10.1145/1328491
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    New York, NY, United States

    Publication History

    Published: 23 April 2007

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    Author Tags

    1. DSP
    2. FPGA
    3. VHDL
    4. assistive technology
    5. beamformer
    6. hearing aid

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    • (2008)Future directions in hearing aid testing and evaluationProceedings of the 2nd International Convention on Rehabilitation Engineering & Assistive Technology10.5555/1983222.1983245(78-82)Online publication date: 13-May-2008

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