Coherence-aware stereophonic residual echo estimation

@article{Valero2017CoherenceawareSR,
  title={Coherence-aware stereophonic residual echo estimation},
  author={Maria Luis Valero and Ilkay Yildiz and Edwin Mabande and Emanuel A. P. Habets},
  journal={2017 Hands-free Speech Communications and Microphone Arrays (HSCMA)},
  year={2017},
  pages={176-180}
}
The performance of stereophonic acoustic echo cancelers is highly dependent on the coherence between the loudspeaker signals. If this is high, convergence is slow, during which audible residual echoes remain. Residual echoes can be reduced by applying a residual echo suppressor to the canceler's output. Yet, in order to obtain the post-filter gains, it is necessary to estimate the residual echoes first, and the performance of stereophonic residual echo estimators also depends on the loudspeaker… CONTINUE READING

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