Title :
Control of feedback in hearing aids-a robust filter design approach
Author :
Rafaely, Boaz ; Roccasalva-Firenze, Mariano
Author_Institution :
Inst. of Sound & Vibration Res., Southampton Univ., UK
fDate :
11/1/2000 12:00:00 AM
Abstract :
A bound on the variability of the feedback path is employed in the design of fixed FIR hearing aid filters that are robust to the specified variability, thus avoiding instability and howling in everyday use. A design example is presented for a linear gain hearing aid filter with a given maximal mismatch of the feedback cancellation filter
Keywords :
FIR filters; acoustic filters; circuit feedback; hearing aids; interference suppression; design; feedback cancellation filter; feedback path; fixed FIR hearing aid filters; linear gain hearing aid filter; maximal mismatch; robust filter design approach; Auditory system; Digital filters; Ear; Feedback; Finite impulse response filter; Hearing aids; Microphones; Robust control; Robustness; Vents;
Journal_Title :
Speech and Audio Processing, IEEE Transactions on
