Title :
A 16-band nonuniform FIR digital filterbank for hearing aid
Author :
Wei, Ying ; Lian, Yong
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
fDate :
Nov. 29 2006-Dec. 1 2006
Abstract :
A computationally efficient 16-band non-uniformly spaced digital FIR filter bank is proposed for hearing aid applications. The filter bank is constructed by three prototype filters based on the principle of frequency-response masking technique. It requires only 34 multiplications in the implementation of a 16-band filter bank with stopband attenuation of -60dB. The simulation results show that the proposed filter bank achieves good matching between audiograms and filter magnitude responses. The filter delay is significantly reduced compared to that of the 8-band non-uniform filter bank [8].
Keywords :
FIR filters; biomedical electronics; frequency response; hearing aids; 16-band nonuniform FIR digital filterbank; audiograms; filter magnitude responses; frequency-response masking technique; hearing aid; stopband attenuation; Auditory system; Filter bank; Finite impulse response filter; Nails; Network-on-a-chip;
Conference_Titel :
Biomedical Circuits and Systems Conference, 2006. BioCAS 2006. IEEE
Conference_Location :
London
Print_ISBN :
978-1-4244-0436-0
Electronic_ISBN :
978-1-4244-0437-7
DOI :
10.1109/BIOCAS.2006.4600339
