Feedback cancellation for hearing aids fitted to open ear canals

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Fitting hearing aids to open ear canals, in spite of its many benefits and increased popularity, is particularly prone to feedback problems. The present study examined the system responses of the feedback path and how effective the feedback signals can be cancelled under the open-canal condition. Compared to a traditional fitting method with earmolds, the open-canal fitting has a smaller amount of usable gain due to a minimal sound attenuation (27 dB) in the open canal. Furthermore, the open-canal fitting appears to have no advantage over the traditional method in the amount of extra usable gain (15 dB) that the current feedback-cancellation system provides. Significant improvement to the feedback-cancellation system, either from increased signal-processing power or from the improvement in design based on the knowledge of the open-canal characteristics, will be needed to extend the benefits of the open-canal fitting method to patients with more than a moderate hearing loss.

Original languageEnglish (US)
Title of host publicationICALIP 2008 - 2008 International Conference on Audio, Language and Image Processing, Proceedings
Pages1606-1609
Number of pages4
DOIs
StatePublished - Sep 22 2008
EventICALIP 2008 - 2008 International Conference on Audio, Language and Image Processing - Shanghai, China
Duration: Jul 7 2008Jul 9 2008

Publication series

NameICALIP 2008 - 2008 International Conference on Audio, Language and Image Processing, Proceedings

Other

OtherICALIP 2008 - 2008 International Conference on Audio, Language and Image Processing
CountryChina
CityShanghai
Period7/7/087/9/08

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Vision and Pattern Recognition

Fingerprint Dive into the research topics of 'Feedback cancellation for hearing aids fitted to open ear canals'. Together they form a unique fingerprint.

Cite this