Adaptive gain processing to improve feedback cancellation in digital hearing aids

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Publication Type Journal Article
School or College College of Engineering
Department Electrical & Computer Engineering
Creator Mathews, V. John; Nilsson, Michael
Other Author Pandey, Ashutosh
Title Adaptive gain processing to improve feedback cancellation in digital hearing aids
Date 2008
Description Adaptive filters are commonly used to cancel acoustic feedback in hearing aids. The sound quality of hearing aids deteriorates as the hearing aid gain is increased. This paper presents a method to alter the gain function in digital hearing aids to provide additional amplification and better output sound quality. This approach employs a variable, frequency-dependent gain function that is lower at frequencies of the incoming signal where the information is perceptually insignificant. The increase in stable gain over traditional methods and the output sound quality were evaluated with a psychoacoustic experiment on normal-hearing listeners. The results indicate that the method of this paper provides more hearing aid gain and less distortion in the output sound quality than feedback cancelers with fixed gain functions.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
First Page 357
Last Page 360
Language eng
Bibliographic Citation Pandey, A., Mathews, V. J., & Nilsson, M. (2008). Adaptive gain processing to improve feedback cancellation in digital hearing aids. Proc. IEEE Int. Conf. Acoustics, Speech & Signal Processing, 357-60. April 1-4.
Rights Management (c) 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Format Medium application/pdf
Format Extent 1,901,000 bytes
Identifier ir-main,15184
ARK ark:/87278/s6tm7v79
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 702558
Reference URL https://collections.lib.utah.edu/ark:/87278/s6tm7v79
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