Echo canceller using parametric methods

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Title: Echo canceller using parametric methods
Date: 1987
Citation: Ardalan, S. H., & Alexander, S. T. (1987). Echo canceller using parametric methods. U.S. Patent No. 4,677,668. Washington, DC: U.S. Patent and Trademark Office.
URI: http://www.lib.ncsu.edu/resolver/1840.2/1177


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