Closed-loop feedback cancellation utilizing two microphones and transform domain processing
In this paper we are studying the use of two microphones for acoustic feedback cancellation in hearing aids. With the two microphones approach, an additional microphone is employed toprovide added information bout the signals which is then utilized to obtain an incoming signal estimate. This estimat...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Published: |
IEEE
2014
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/39805 |
| _version_ | 1848755693012647936 |
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| author | Renato, C. Nakagawa, Carlos Nordholm, Sven Albu, F. Yan, Wei-Yong |
| author2 | ICASSP 2014 Publication Chair Maria Sabrina Greco |
| author_facet | ICASSP 2014 Publication Chair Maria Sabrina Greco Renato, C. Nakagawa, Carlos Nordholm, Sven Albu, F. Yan, Wei-Yong |
| author_sort | Renato, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this paper we are studying the use of two microphones for acoustic feedback cancellation in hearing aids. With the two microphones approach, an additional microphone is employed toprovide added information bout the signals which is then utilized to obtain an incoming signal estimate. This estimate is removed from the error signal prior to adapting the canceler, thus removing the undesired signal correlation. In this paper, we propose to use orthogonal transforms with the two microphones approach. The discrete Fourier transform and the discrete cosine transform are implemented to transform the adaptive filter signals. Also, a bank of adaptive filters is employed, each adapting to different portions of the spectrum for a finer control of the adaptation process. Simulation results based on real measured feedback paths and speech signals show improved convergence rates and stablesolutions. |
| first_indexed | 2025-11-14T09:00:21Z |
| format | Conference Paper |
| id | curtin-20.500.11937-39805 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:00:21Z |
| publishDate | 2014 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-398052017-09-13T16:07:20Z Closed-loop feedback cancellation utilizing two microphones and transform domain processing Renato, C. Nakagawa, Carlos Nordholm, Sven Albu, F. Yan, Wei-Yong ICASSP 2014 Publication Chair Maria Sabrina Greco hearing aids feedback cancellation bias problem Acoustic feedback two microphones In this paper we are studying the use of two microphones for acoustic feedback cancellation in hearing aids. With the two microphones approach, an additional microphone is employed toprovide added information bout the signals which is then utilized to obtain an incoming signal estimate. This estimate is removed from the error signal prior to adapting the canceler, thus removing the undesired signal correlation. In this paper, we propose to use orthogonal transforms with the two microphones approach. The discrete Fourier transform and the discrete cosine transform are implemented to transform the adaptive filter signals. Also, a bank of adaptive filters is employed, each adapting to different portions of the spectrum for a finer control of the adaptation process. Simulation results based on real measured feedback paths and speech signals show improved convergence rates and stablesolutions. 2014 Conference Paper http://hdl.handle.net/20.500.11937/39805 10.1109/ICASSP.2014.6854281 IEEE restricted |
| spellingShingle | hearing aids feedback cancellation bias problem Acoustic feedback two microphones Renato, C. Nakagawa, Carlos Nordholm, Sven Albu, F. Yan, Wei-Yong Closed-loop feedback cancellation utilizing two microphones and transform domain processing |
| title | Closed-loop feedback cancellation utilizing two microphones and transform domain processing |
| title_full | Closed-loop feedback cancellation utilizing two microphones and transform domain processing |
| title_fullStr | Closed-loop feedback cancellation utilizing two microphones and transform domain processing |
| title_full_unstemmed | Closed-loop feedback cancellation utilizing two microphones and transform domain processing |
| title_short | Closed-loop feedback cancellation utilizing two microphones and transform domain processing |
| title_sort | closed-loop feedback cancellation utilizing two microphones and transform domain processing |
| topic | hearing aids feedback cancellation bias problem Acoustic feedback two microphones |
| url | http://hdl.handle.net/20.500.11937/39805 |