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Efficient and robust cancellation of echoes with long echo path delay

✍ Scribed by Jianfeng Liu

Book ID
114609099
Publisher
IEEE
Year
2004
Tongue
English
Weight
171 KB
Volume
52
Category
Article
ISSN
0090-6778

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## Abstract For hands‐free acoustic human/machine interfaces, as required, e.g., for automatic speech recognition, teleconferencing, and other multimedia services, microphone arrays using generalized sidelobe cancellers (GSCs) in conjunction with acoustic echo cancellation (AEC) can be efficiently

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In conventional ANC (Active Noise Control), the cancellation path is usually modelled by a FIR filter with many coefficients. In this study, a Delayed-X LMS algorithm is investigated of which the computational load is much less than that of the Filtered-X LMS method for a long duct or narrow band no