Acoustic Feedback Cancellation in Efficient Hearing Aids using Genetic Algorithm
نویسندگان
چکیده
منابع مشابه
acoustic feedback suppression in binaural hearing aids
background and aim : the hearing loss and acoustic feedback signal in the binaural hearing aids may annoy users, make speech reorganization difficult, and affect the sound quality. this paper presents a new method for acoustic feedback suppression in binaural hearing aids, based on the combination of binaural information and blind source separation. this method can enhance sound from the specif...
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This thesis addresses the problem of feedback cancellation in hearing aids using source separation techniques. Feedback oscillation (when a hearing aid whistles) is a major issue with hearing aids. It limits the maximum gain that can be achieved. The biggest barrier in solving this problem is the bias in feedback cancellation. A great number of algorithms are proposed during the last two decade...
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In this work we evaluate four state-of-the-art acoustic feedback cancellation systems for hearing aid applications. We show that significant improvements in cancellation performance can be made over traditional systems by allowing small alterations in the loudspeaker signal and a computational complexity increase by a factor of 2 − 3. The evaluation is based on a listening test and objective as...
متن کاملBand-limited feedback cancellation with a modified filtered-X LMS algorithm for hearing aids
Commonly used wideband adaptive feedback cancellation techniques do not provide satisfactory performance for reducing feedback oscillation in hearing aids. In this paper, a band-limited adaptive feedback cancellation algorithm using normalized filtered-X LMS techniques is proposed that provides good cancellation efficiency, convergence behavior and better output sound quality for speech signals...
متن کاملReciprocal measurement of acoustic feedback paths in hearing aids.
A reciprocal measurement procedure to measure the acoustic feedback path in hearing aids is investigated. The advantage of the reciprocal measurement compared to the direct measurement is a significantly reduced sound pressure in the ear. The direct and reciprocal measurements are compared using measurements on a dummy head with adjustable ear canals, different earmolds, and variations in the o...
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ژورنال
عنوان ژورنال: Scalable Computing: Practice and Experience
سال: 2020
ISSN: 1895-1767
DOI: 10.12694/scpe.v21i1.1630