Improved practical variable step-size algorithm for adaptive feedback control in hearing aids
© 2016 IEEE.Variable step-size (VSS) schemes are popular to use in acoustic echo cancellation (AEC) contexts. However, their effective implementation in adaptive feedback cancellation (AFC) for hearing aids is still challenging due to the correlation between microphone and loudspeaker signals. We pr...
| Main Authors: | , , , , |
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| Format: | Conference Paper |
| Published: |
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/52672 |
| _version_ | 1848758983605616640 |
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| author | Tran, L. Schepker, H. Doclo, S. Dam, Hai Huyen Heidi Nordholm, Sven |
| author_facet | Tran, L. Schepker, H. Doclo, S. Dam, Hai Huyen Heidi Nordholm, Sven |
| author_sort | Tran, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2016 IEEE.Variable step-size (VSS) schemes are popular to use in acoustic echo cancellation (AEC) contexts. However, their effective implementation in adaptive feedback cancellation (AFC) for hearing aids is still challenging due to the correlation between microphone and loudspeaker signals. We propose an improved practical VSS algorithm (IPVSS) which uses a variable step-size with upper and lower limits to control the update equation of an adaptive filter. The proposed algorithm is implemented for feedback cancellation using the prediction error method. As a result, the overall system has a fast convergence rate, a high tracking rate and a low steady-state error. The performance of the proposed approach has been evaluated for both speech and music incoming signals. The simulation results show that the proposed approach outperforms a system which only utilizes either the lower or the upper fixed step-size used in the IPVSS. |
| first_indexed | 2025-11-14T09:52:39Z |
| format | Conference Paper |
| id | curtin-20.500.11937-52672 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:52:39Z |
| publishDate | 2017 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-526722017-09-13T15:38:23Z Improved practical variable step-size algorithm for adaptive feedback control in hearing aids Tran, L. Schepker, H. Doclo, S. Dam, Hai Huyen Heidi Nordholm, Sven © 2016 IEEE.Variable step-size (VSS) schemes are popular to use in acoustic echo cancellation (AEC) contexts. However, their effective implementation in adaptive feedback cancellation (AFC) for hearing aids is still challenging due to the correlation between microphone and loudspeaker signals. We propose an improved practical VSS algorithm (IPVSS) which uses a variable step-size with upper and lower limits to control the update equation of an adaptive filter. The proposed algorithm is implemented for feedback cancellation using the prediction error method. As a result, the overall system has a fast convergence rate, a high tracking rate and a low steady-state error. The performance of the proposed approach has been evaluated for both speech and music incoming signals. The simulation results show that the proposed approach outperforms a system which only utilizes either the lower or the upper fixed step-size used in the IPVSS. 2017 Conference Paper http://hdl.handle.net/20.500.11937/52672 10.1109/ICSPCS.2016.7843330 restricted |
| spellingShingle | Tran, L. Schepker, H. Doclo, S. Dam, Hai Huyen Heidi Nordholm, Sven Improved practical variable step-size algorithm for adaptive feedback control in hearing aids |
| title | Improved practical variable step-size algorithm for adaptive feedback control in hearing aids |
| title_full | Improved practical variable step-size algorithm for adaptive feedback control in hearing aids |
| title_fullStr | Improved practical variable step-size algorithm for adaptive feedback control in hearing aids |
| title_full_unstemmed | Improved practical variable step-size algorithm for adaptive feedback control in hearing aids |
| title_short | Improved practical variable step-size algorithm for adaptive feedback control in hearing aids |
| title_sort | improved practical variable step-size algorithm for adaptive feedback control in hearing aids |
| url | http://hdl.handle.net/20.500.11937/52672 |