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A Single-Channel MVDR Filter for Acoustic Echo Suppression

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4 Author(s)
Helwani, K. ; Deutsche Telekom Labs., Berlin, Germany ; Buchner, H. ; Benesty, J. ; Jingdong Chen

Acoustic echo suppression techniques for full-duplex communication in low-complexity systems are commonly known to introduce distortion to the desired signal (i.e., near-end speech). Moreover, most traditional echo control techniques typically require accurately detecting the contribution of the near-end speaker to the microphone signal (“double talk”). In this letter, we propose a novel approach to acoustic echo suppression, which aims at extracting the near-end signal using a constraint for minimizing the distortion, and without requiring a double-talk detector.

Published in:

Signal Processing Letters, IEEE  (Volume:20 ,  Issue: 4 )