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Design and Implementation on a Sub-band based Acoustic Echo Cancellation Approach

This paper describes the design and implementation of a sub-band based acoustic echo cancellation approach, which incorporates the normalized least mean square algorithm and the double talk detection algorithm. According to the simulation, the proposed approach works well in the modest linear noisy environment. Since the proposed approach is implemented in fix- pointed C, it can be easily ported into fixed-point DSPs to cancel acoustic echo in real systems.