| 摘要 |
A method and system for non-linear post processing of an audio signal for acoustic echo cancellation is disclosed. The system includes a non-linear processor (NLP) (104) that receives, as input, at least two of the following signals: a far-end signal to be rendered and a plurality of capture-side signals. The NLP (104) first computes, for each frequency band, one or more coherence measures between the received signals and derives suppression factors corresponding to each band based on the one or more coherence measures. The NLP (104) also applies the suppression factors to one of the capture-side signals to substantially remove echo from the capture-side signal. |
