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Content Provider | IEEE Xplore Digital Library |
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Author | Xiao Hu Ai-Qun Hu Youg Chen Xiao-Hong Zeng |
Copyright Year | 2003 |
Description | Author affiliation: Dept. of Radio Eng., Southeast Univ., Nanjing, China (Xiao Hu; Ai-Qun Hu; Youg Chen; Xiao-Hong Zeng) |
Abstract | The paper proposes a novel adaptive echo cancellation (AEC) without double talk detection (DTD) that can work stably under all operating models. This breaks through the restriction that all of the adaptive echo cancellations must have DTD currently. The novel AEC is accomplished by injecting a low-level broadband random training signal to the far-end signal before transmission into the local room, modeling adaptively the echo path by taking the training signal as the reference signal, removing the speech signal interference of the adaptive algorithm by an adaptive prediction filter (APF), and modifying the distortion of the reference signal due to the APF by a compensation filter (CPF). The computer simulations confirm the AEC without DTD can provide excellent echo cancellation effect under all operating models. |
Sponsorship | IEEE Systems Man and Cybernetics Tech. Committee on Cybernetics, Hebei Univ. Northwestern Polytechnical Univ |
Starting Page | 972 |
Ending Page | 975 |
File Size | 227146 |
Page Count | 4 |
File Format | |
ISBN | 0780381319 |
DOI | 10.1109/ICMLC.2003.1259621 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2003-11-05 |
Publisher Place | China |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Echo cancellers Acoustic signal detection Adaptive filters Microphones Finite impulse response filter Speech Distortion Adaptive algorithm Loudspeakers Predictive models |
Content Type | Text |
Resource Type | Article |
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