| 摘要 |
A distributed echo cancelling architecture is provided where echo- cancelling functions are performed at locations remote from devices receivin g signals with echoes. The echo cancelling functions use a reference signal, which has been corrupted with the echoes at the devices, for echo cancellation. As echo canceller resources are located at a central system and not at each individu al device, the echo canceller resources can therefore be shared between the devices.
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