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Published on: January 25, 2016
Noise reduction in hearing aids: a review
1The Lexington School for the Deaf/Center for the Deaf, Jackson Heights, NY 11370, USA. hlevitt@pon.net
Journal of Rehabilitation Research and Development
|April 27, 2001
Summary
Reducing background noise is crucial for hearing aid users with hearing loss. This paper reviews various noise reduction techniques, from simple filtering to advanced signal processing, to improve speech intelligibility.
Area of Science:
- Audiology and Signal Processing
- Hearing Science
- Biomedical Engineering
Background:
- Background noise significantly impairs speech intelligibility for individuals with hearing loss.
- Effective noise reduction in hearing aids is a critical yet challenging problem.
- Numerous noise reduction strategies have been developed over time.
Purpose of the Study:
- To provide a nontechnical overview of noise reduction challenges in hearing aids.
- To survey the diverse range of techniques employed for noise reduction.
- To explain the issues and approaches in addressing noise in hearing aids.
Main Methods:
- Overview of traditional filtering techniques.
- Discussion of advanced signal processing algorithms.
- Nontechnical explanation of various noise reduction methods.
Main Results:
- A wide spectrum of noise reduction techniques exists, varying in complexity.
- Both simple and sophisticated methods aim to enhance speech clarity.
- The choice of method depends on the specific challenges of noise and hearing loss.
Conclusions:
- Noise reduction is essential for improving hearing aid effectiveness.
- A variety of approaches, from basic to complex, are available.
- Understanding these methods is key to addressing hearing loss challenges.
