An efficient adaptive feedback cancellation for hearing aids

Sang Min Lee, In Young Kim, Young Cheol Park

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Howling is very annoying problem to the hearing-aid users and it limits the maximum usable gain of hearing aids. We propose a new feedback cancellation system by inserting a time-varying decorrelation filter in the forward path. We use a second-order all-pass filter with control parameters whose time variation is implemented using a low-frequency modulator. A noticeable reduction of weight-vector misalignment is achievable using our proposed method.

Original languageEnglish
Pages (from-to)2446-2450
Number of pages5
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Issue number9
StatePublished - 2005 Sep


  • All-pass filter
  • Decorrelation
  • Feedback cancellation
  • Hearing aids


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