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Adaptive algorithms have become a mainstay in DSP. They are used in wide ranging applications including wireless channel estimation, radar guidance systems, acoustic echo cancellations and many others.

echo cancellation file for acoustic echo

The signal at the microphone contains both the near-end speech and the far-end speech that has been echoed throughout the room. The goal of the acoustic echo canceler is to cancel out the far-end speech, such that only the near-end speech is transmit