Design Of Digital Fir Non-Uniform Reconfigurable Filter Bank For Hearing Impairments
In this paper, a reconfigurable digital FIR filter bank which can generate 21 different sub bands is implemented. A
reconfigurable digital FIR filter bank finds many applications including helping hearing-impaired people to customize
hearing aids based on their own specific conditions to improve their hearing ability. Furthermore, the complexity is greatly
decreased by using only three prototype filters for subband generation and same for masking filters bank. This filter bank can
achieve better matching than fixed filter bank due to its ability to distribute subbands flexibly.
Keywords: Masking Filter Bank, Audiogram, Coefficient Decimation Technique-I, Coefficient Decimation Technique-II