This paper discusses a multichannel echo canceller design which permits almost complete versatility in defining the filter length versus channel coverage tradeoff for a fixed-length, 960 transversal filter. Reconfiguration involves only the exchange of on-board ROMs. Hence, a single board design will suffice in applications with varying end-delay requirements. The design uses only readily available, off-the-shelf components and fits on a single 15-watt PCB.
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