Echo cancellation in VoIP with improved least square lattice method
In this work, an approach to echo cancellation in VoIP network based on the packet-based echo cancellation model was employed. In addition, a comparative validation was performed and then analysed specifically in the state of echo canceller as adaptive filtering was done by using three algorithms: n...
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th-mahidol.299852018-09-24T16:47:51Z Echo cancellation in VoIP with improved least square lattice method Supachai Tangwongsan Lttipon Rassameeroj Mahidol University Multidisciplinary In this work, an approach to echo cancellation in VoIP network based on the packet-based echo cancellation model was employed. In addition, a comparative validation was performed and then analysed specifically in the state of echo canceller as adaptive filtering was done by using three algorithms: normalised least mean square (NLMS), recursive least square (RLS) and least square lattice (LSL). Communication environments with three different echo strength levels: 20%, 50% and 70% of far-end speech were simulated. The result shows that in terms of time computation, NLMS is the best, followed by LSL and RLS as the last. However, NLMS suffers from the measure of ERLE, as it falls to the third place, followed by LSL and RLS as the first. Then, taking them all into consideration, it could be concluded that LSL is the best among all for echo cancellation as verified in the experimental simulation. Copyright © 2010 Inderscience Enterprises Ltd. 2018-09-24T09:47:51Z 2018-09-24T09:47:51Z 2010-03-01 Article World Review of Science, Technology and Sustainable Development. Vol.7, No.1-2 (2010), 141-160 10.1504/WRSTSD.2010.032350 17412234 17412242 2-s2.0-77950620162 https://repository.li.mahidol.ac.th/handle/123456789/29985 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77950620162&origin=inward |
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Multidisciplinary Supachai Tangwongsan Lttipon Rassameeroj Echo cancellation in VoIP with improved least square lattice method |
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In this work, an approach to echo cancellation in VoIP network based on the packet-based echo cancellation model was employed. In addition, a comparative validation was performed and then analysed specifically in the state of echo canceller as adaptive filtering was done by using three algorithms: normalised least mean square (NLMS), recursive least square (RLS) and least square lattice (LSL). Communication environments with three different echo strength levels: 20%, 50% and 70% of far-end speech were simulated. The result shows that in terms of time computation, NLMS is the best, followed by LSL and RLS as the last. However, NLMS suffers from the measure of ERLE, as it falls to the third place, followed by LSL and RLS as the first. Then, taking them all into consideration, it could be concluded that LSL is the best among all for echo cancellation as verified in the experimental simulation. Copyright © 2010 Inderscience Enterprises Ltd. |
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Mahidol University |
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Mahidol University Supachai Tangwongsan Lttipon Rassameeroj |
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Article |
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Supachai Tangwongsan Lttipon Rassameeroj |
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Supachai Tangwongsan |
title |
Echo cancellation in VoIP with improved least square lattice method |
title_short |
Echo cancellation in VoIP with improved least square lattice method |
title_full |
Echo cancellation in VoIP with improved least square lattice method |
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Echo cancellation in VoIP with improved least square lattice method |
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Echo cancellation in VoIP with improved least square lattice method |
title_sort |
echo cancellation in voip with improved least square lattice method |
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2018 |
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https://repository.li.mahidol.ac.th/handle/123456789/29985 |
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