Title :
Reducing acoustic feedback in hearing aids
Author :
Maxwell, Joseph A. ; Zurek, Patrick M.
Author_Institution :
Res. Lab. of Electron., MIT, Cambridge, MA, USA
fDate :
7/1/1995 12:00:00 AM
Abstract :
Five techniques for reducing acoustic feedback in hearing aids were investigated: an adaptive notch filter, three previously described methods for adaptive feedback cancellation, and a novel method for feedback cancellation with adaptation during quiet intervals. Through real-time implementations, these techniques were assessed for added stable gain and sound quality. Test results showed the novel system to provide the best overall performance
Keywords :
acoustic filters; adaptive filters; feedback; hearing aids; notch filters; adaptive feedback cancellation; adaptive notch filter; hearing aids; performance; quiet intervals; real-time implementations; reducing acoustic feedback; sound quality; stable gain; Acoustic testing; Adaptive filters; Auditory system; Feedback; Gain measurement; Hearing aids; Laboratories; Microphones; System testing; Transfer functions;
Journal_Title :
Speech and Audio Processing, IEEE Transactions on
