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GOWIN AEC

Introduction:

            Gowin AEC(Acoustic Echo Cancellation) IP is used to remove the echo from the captured signal. This IP can judge whether the captured signal contains echoes by XCORR, and use NLMS(Normalized Least Mean Square) adaptive filter to filter out the echo part with high correlation in the captured signal to realize echo cancellation.

 

Feature:

  • Input data width supports 8~32 bits
  • Number of XCORR supports 256/512/1048/2048
  • Configurable threshold of XCORR
  • Configurable the MAX lag of XCORR
  • Configurable step of NLMS
  • Configurable tapsize of NLMS