Title :
Constrained optimum filtering for multi-microphone digital hearing aids
Author :
Hoffman, Michael W. ; Buckley, Kevin M.
fDate :
Oct. 5 1990-Nov. 7 1990
Abstract :
An adaptive digital spatial filter is applied to a multiple microphone array which will be used as a hearing aid input. Models are employed to accurately reflect the effects of acoustic headshadow on the microphone array. Robust constraints are applied to a minimum variance cost function and simulated under a variety of optimum (non-adaptive) processing scenarios. Promising results for some of the methods evaluated are presented.
Keywords :
Acoustic arrays; Acoustic noise; Auditory system; Digital filters; Filtering; Hearing aids; Microphone arrays; Psychoacoustic models; Robustness; Spatial filters;
Conference_Titel :
Signals, Systems and Computers, 1990 Conference Record Twenty-Fourth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-2180-X
DOI :
10.1109/ACSSC.1990.523294
