Affine projection algorithm for speech enhancement using controlled projection order
This research presents a development of the affine projection algorithm (APA) in voice communication applications. A method of controlling the parameters of the APA is devised to improve the performance in cancelling various types of ambient noise that could possibly corrupt speech signals in vo...
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/17213/ http://journalarticle.ukm.my/17213/1/23.pdf |
| _version_ | 1848814256449912832 |
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| author | Noor, Ali O. Abid |
| author_facet | Noor, Ali O. Abid |
| author_sort | Noor, Ali O. Abid |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | This research presents a development of the affine projection algorithm (APA) in voice communication applications. A
method of controlling the parameters of the APA is devised to improve the performance in cancelling various types of
ambient noise that could possibly corrupt speech signals in voice communication systems. Indicators are used to identify
the type of noise accompanying the target signal. Then the corrupted signal is processed in a noise cancellation setup in
such a way that three parameters of algorithm are changed according to the nature of the noise. The spreading of elements
in the covariance matrix of the noise is used as an indicator for the type of noise so that the projection order, step-size
and filter length are changed at the same time. This way the performance of the canceller is improved rendering lower
estimation error with a moderate computational power. The method was tested under various types of noise and showed
better convergence performance than the original APA as well as other commonly used algorithms in noise cancellation
systems. The MSE of the proposed VPAPA method drops to -65 dB in steady state compared to -20 dB using NLMS and just
below -30 dB using standard APA with projection order of 8, while the powerful RLS reaches around -60dB under the same
environment. The method can be useful for clearer voice communication in variable environmental noise. |
| first_indexed | 2025-11-15T00:31:12Z |
| format | Article |
| id | oai:generic.eprints.org:17213 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:31:12Z |
| publishDate | 2020 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:172132021-07-27T02:57:52Z http://journalarticle.ukm.my/17213/ Affine projection algorithm for speech enhancement using controlled projection order Noor, Ali O. Abid This research presents a development of the affine projection algorithm (APA) in voice communication applications. A method of controlling the parameters of the APA is devised to improve the performance in cancelling various types of ambient noise that could possibly corrupt speech signals in voice communication systems. Indicators are used to identify the type of noise accompanying the target signal. Then the corrupted signal is processed in a noise cancellation setup in such a way that three parameters of algorithm are changed according to the nature of the noise. The spreading of elements in the covariance matrix of the noise is used as an indicator for the type of noise so that the projection order, step-size and filter length are changed at the same time. This way the performance of the canceller is improved rendering lower estimation error with a moderate computational power. The method was tested under various types of noise and showed better convergence performance than the original APA as well as other commonly used algorithms in noise cancellation systems. The MSE of the proposed VPAPA method drops to -65 dB in steady state compared to -20 dB using NLMS and just below -30 dB using standard APA with projection order of 8, while the powerful RLS reaches around -60dB under the same environment. The method can be useful for clearer voice communication in variable environmental noise. Penerbit Universiti Kebangsaan Malaysia 2020 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/17213/1/23.pdf Noor, Ali O. Abid (2020) Affine projection algorithm for speech enhancement using controlled projection order. Jurnal Kejuruteraan, 32 (4). pp. 723-728. ISSN 0128-0198 https://www.ukm.my/jkukm/volume-324-2020/ |
| spellingShingle | Noor, Ali O. Abid Affine projection algorithm for speech enhancement using controlled projection order |
| title | Affine projection algorithm for speech enhancement using controlled projection order |
| title_full | Affine projection algorithm for speech enhancement using controlled projection order |
| title_fullStr | Affine projection algorithm for speech enhancement using controlled projection order |
| title_full_unstemmed | Affine projection algorithm for speech enhancement using controlled projection order |
| title_short | Affine projection algorithm for speech enhancement using controlled projection order |
| title_sort | affine projection algorithm for speech enhancement using controlled projection order |
| url | http://journalarticle.ukm.my/17213/ http://journalarticle.ukm.my/17213/ http://journalarticle.ukm.my/17213/1/23.pdf |