Title :
Programmable audiogram matching using a frequency sampling filter implemented on the Texas TMS 320C30
Author :
Black, N D ; Lydon, M. ; Waterman, N. ; Powderly, M.
Author_Institution :
Dept. of Electr. Eng., Ulster Univ., Jordanstown, UK
Abstract :
A frequency sampling filter which has been implemented on a master digital hearing aid comprising a Texas TMS 320C30 DSP and associated circuitry is presented. The filter runs in real time and is used to provide a response, determined from the human audiogram, which compensates for loss of gain. The algorithm matches given requirements using a filter structure consisting of a comb filter having 400 zeros in cascade with 167 digital resonators
Keywords :
biomedical electronics; digital filters; digital signal processing chips; hearing aids; Texas TMS 320C30; comb filter; digital hearing aid; digital resonators; frequency sampling filter; human audiogram; programmable audiogram matching; Auditory system; Digital filters; Filtering theory; Finite impulse response filter; Frequency; Humans; Matched filters; Resonator filters; Sampling methods; Signal processing algorithms;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226079
