The Hybrid Simplified Kalman Filter for Adaptive Feedback Cancellation

© 2018 IEEE. Numerous adaptive feedback cancellation (AFC) algorithms are used in open-fitting and in-ear hearing aid devices (HADs) in order to avoid the possible annoying howling sounds. Recently, a hybrid AFC (H-AFC) scheme that shortened the recovering time from howling was proposed. It consists...

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Main Authors: Albu, F., Tran, L., Nordholm, Sven
Format: Conference Paper
Published: 2018
Online Access:http://hdl.handle.net/20.500.11937/71210
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author Albu, F.
Tran, L.
Nordholm, Sven
author_facet Albu, F.
Tran, L.
Nordholm, Sven
author_sort Albu, F.
building Curtin Institutional Repository
collection Online Access
description © 2018 IEEE. Numerous adaptive feedback cancellation (AFC) algorithms are used in open-fitting and in-ear hearing aid devices (HADs) in order to avoid the possible annoying howling sounds. Recently, a hybrid AFC (H-AFC) scheme that shortened the recovering time from howling was proposed. It consists of a switched combination adaptive filter controlled by a stability detector that chooses either the standard normalized least mean squares (NLMS) algorithm or the prediction-error method (PEM) NLMS algorithm. In this paper a hybrid simplified Kalman filter (H -SKF) that uses a modified stability detector and a switch between NLMS and (PEM) SKF algorithms is proposed. It is shown that the proposed approach improves the convergence properties and shortens the howling periods for both speech and music signals compared with the hybrid NLMS (H-NLMS) algorithm.
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spelling curtin-20.500.11937-712102018-12-13T09:34:20Z The Hybrid Simplified Kalman Filter for Adaptive Feedback Cancellation Albu, F. Tran, L. Nordholm, Sven © 2018 IEEE. Numerous adaptive feedback cancellation (AFC) algorithms are used in open-fitting and in-ear hearing aid devices (HADs) in order to avoid the possible annoying howling sounds. Recently, a hybrid AFC (H-AFC) scheme that shortened the recovering time from howling was proposed. It consists of a switched combination adaptive filter controlled by a stability detector that chooses either the standard normalized least mean squares (NLMS) algorithm or the prediction-error method (PEM) NLMS algorithm. In this paper a hybrid simplified Kalman filter (H -SKF) that uses a modified stability detector and a switch between NLMS and (PEM) SKF algorithms is proposed. It is shown that the proposed approach improves the convergence properties and shortens the howling periods for both speech and music signals compared with the hybrid NLMS (H-NLMS) algorithm. 2018 Conference Paper http://hdl.handle.net/20.500.11937/71210 10.1109/ICComm.2018.8430141 restricted
spellingShingle Albu, F.
Tran, L.
Nordholm, Sven
The Hybrid Simplified Kalman Filter for Adaptive Feedback Cancellation
title The Hybrid Simplified Kalman Filter for Adaptive Feedback Cancellation
title_full The Hybrid Simplified Kalman Filter for Adaptive Feedback Cancellation
title_fullStr The Hybrid Simplified Kalman Filter for Adaptive Feedback Cancellation
title_full_unstemmed The Hybrid Simplified Kalman Filter for Adaptive Feedback Cancellation
title_short The Hybrid Simplified Kalman Filter for Adaptive Feedback Cancellation
title_sort hybrid simplified kalman filter for adaptive feedback cancellation
url http://hdl.handle.net/20.500.11937/71210