Title :
An optimal curve for choosing the number of zeros in an audiogram matching filter
Author :
Li, M. ; McAllister, H.G. ; Black, N D
Author_Institution :
Sch. of Electr. & Mech. Eng., Ulster Univ., Jordanstown, UK
Abstract :
Describes the relationship between the number of frequency sampling filter (FSF) zeros and coefficient quantisation errors implemented in 16-bit fixed-point architecture. An optimal curve for the number to match realistic audiograms and to improve the FSF performance is found and experimental results presented
Keywords :
acoustic filters; acoustic signal processing; biomedical measurement; hearing; medical signal processing; 16-bit fixed-point architecture; audiogram matching filter; coefficient quantisation errors; frequency sampling filter; hearing aid fitting; optimal curve; realistic audiograms; zeros number choosing; Auditory system; Digital signal processing chips; Finite impulse response filter; Frequency response; Matched filters; Quantization; Resonator filters; Sampling methods; State feedback; Transversal filters;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.579435
