Modified LMS-Based Feedback-Reduction Subsystems in Digital Hearing Aids Based on WOLA Filter Bank

2009 ◽  
Vol 58 (9) ◽  
pp. 3177-3190 ◽  
Author(s):  
R. Vicen-Bueno ◽  
A. Martinez-Leira ◽  
R. Gil-Pita ◽  
M. Rosa-Zurera
Keyword(s):  
Hearing Aids ◽  
Filter Bank ◽  
Digital Hearing Aids ◽  
Feedback Reduction

Design of ANSI S1.11 Filter Bank for Digital Hearing Aids

2007 ◽  
Author(s):  
Yu-Ting Kuo ◽  
Tay-Jyi Lin ◽  
Yueh-Tai Li ◽  
Wei-Han Chang ◽  
Chih-Wei Liu ◽  
...  
Keyword(s):  
Hearing Aids ◽  
Filter Bank ◽  
Digital Hearing Aids

Digital Hearing Aids Using Automated Varying Bandwidth Finite Impulse Response Filter Banks

2020 ◽  
Vol 10 (9) ◽  
pp. 2005-2009
Author(s):  
Hu Jun ◽  
Zeng Jian ◽  
Yi Hong ◽  
R. Jayabharathy ◽  
V. Gomathi ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Auditory System ◽  
Hearing Aids ◽  
Filter Bank ◽  
Filter Banks ◽  
Finite Impulse Response ◽  
Research Work ◽  
Assistive Technologies ◽  
Digital Hearing Aids ◽  
Variable Bandwidth

A human auditory system is a highly complex sensitive system which transfers the acoustic sound into neuroelectrical signals toward the brain. Hearing difficulties or deafness are the outcomes of the problems occurred at any part of the auditory system. Assistive technologies such as hearing aids are developed to improve the quality of life of the hearing impaired people. Current digital hearing aids have fixed bandwidth filter banks which cannot provide enough flexibility to match with audiogram of different hearing loss. Recently, variable bandwidth filter banks have been introduced with different technologies to match more closely with the audiogram of a particular hearing loss. This research work proposes and implements a software controlled variable bandwidth FIR filter bank using Matlab GUI. In the Matlab GUI, in the filter bank, the bandwidth of every filter is adjusted dynamically in the Matlab GUI such that it fits more closely to the audiogram of a particular hearing loss. An experiment has been conducted in the developed Matlab GUI with various hearing loss, and the results show that the proposed system matches the filter bank magnitude response very closely to the audiogram of a particular hearing loss and reduces the matching error.

10-ms 18-Band Quasi-ANSI S1.11 1/3-Octave Filter Bank for Digital Hearing Aids

2013 ◽  
Vol 60 (3) ◽  
pp. 638-649 ◽  
Author(s):  
Chih-Wei Liu ◽  
Kuo-Chiang Chang ◽  
Ming-Hsun Chuang ◽  
Ching-Hao Lin
Keyword(s):  
Hearing Aids ◽  
Filter Bank ◽  
Digital Hearing Aids
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