Design of reconfigurable low-complexity digital hearing aid using Farrow structure based variable bandwidth filters
Document title: Design of reconfigurable low-complexity digital hearing aid using Farrow structure based variable bandwidth filters
Journal: Journal of applied research and technology
Database: PERIÓDICA
System number: 000399056
ISSN: 1665-6423
Authors: 1
1
Institutions: 1National Institute of Technology Calicut, Calicut, Kerala. India
Year:
Season: Abr
Volumen: 14
Number: 2
Pages: 154-165
Country: México
Language: Inglés
Document type: Artículo
Approach: Aplicado, descriptivo
English abstract A low complexity digital hearing aid is designed using a set of subband filters, for various audiograms. It is important for the device to be made of simple hardware, so that the device becomes less bulky. Hence, a low complexity design of reconfigurable filter is proposed in this paper. The tunable filter structure is designed using Farrow based variable bandwidth filter. The coefficients of the filter are expressed in canonic signed digit format. The performance can be enhanced using optimization algorithm. Here, we have explored the strength of hybrid evolutionary algorithms and compared their various combinations to select a proper coefficient representation for the Farrow based filter, which results in low complexity implementation
Disciplines: Ingeniería,
Medicina
Keyword: Ingeniería biomédica,
Otología,
Sordera,
Aparatos auditivos,
Filtros de banda variable,
Estructura de Farrow
Keyword: Engineering,
Medicine,
Biomedical engineering,
Otology,
Deafness,
Hearing aids,
Variable bandwidth filters,
Farrow structure
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