| Design of oversampled DFT modulated filter banks optimized for acoustic echo cancellation Recent countries visiting this post |  |
 | 12 | United States |
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| Design of oversampled DFT modulated filter banks optimized for acoustic echo cancellation Recent countries visiting this post | |
| 12 | United States |
| 4 | |
| 3 | China |
| 1 | Europe |