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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chen Chao Cheng Hui Zhou Yi |
| Copyright Year | 2013 |
| Description | Author affiliation: Sch. of Commun. & Inf. Eng., Chongqing Univ. of Posts & Telecommun., Chongqing, China (Zhou Yi) || Dept. of Autom., Sun Yat-sen Univ., Guangzhou, China (Chen Chao; Cheng Hui) |
| Abstract | Hand-free systems are widely deployed in voice communication where acoustic echo is inevitable. Acoustic echo cancellation (AEC) is effective to mitigate acoustic echo. In some applications, serious nonlinear acoustic echo presents due to nonlinear components in handhold devices. Since nonlinear echo cannot be satisfactorily cancelled with linear AEC, nonlinear residual echo suppression (NRES) module is introduced to suppress nonlinear residual echo. Considering the NRES module will distort near-end speech, a novel doubletalk detection (DTD) algorithm is proposed based on partial channel modeling to detect near-end speech in nonlinear circumstance. In addition, a structure integrating the new DTD and the NRES module is presented to improve the performance of AEC in nonlinear system. Simulations confirm the effectiveness of the new DTD algorithm and the structure integrating the DTD and the NRES. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 524288 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781479928255 |
| ISSN | 21593450 |
| e-ISBN | 9781479928279 |
| DOI | 10.1109/TENCON.2013.6718513 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-10-22 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Adaptive filters Speech Heuristic algorithms Echo cancellers Noise Signal processing algorithms NRES Nonlinear AEC DTD |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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