2021 IEEE International Conference on Acoustics, Speech and Signal Processing

6-11 June 2021 • Toronto, Ontario, Canada

Extracting Knowledge from Information

2021 IEEE International Conference on Acoustics, Speech and Signal Processing

6-11 June 2021 • Toronto, Ontario, Canada

Extracting Knowledge from Information
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Paper Detail

Paper IDAUD-5.2
Paper Title COMBINING ADAPTIVE FILTERING AND COMPLEX-VALUED DEEP POSTFILTERING FOR ACOUSTIC ECHO CANCELLATION
Authors Mhd Modar Halimeh, Thomas Haubner, Annika Briegleb, Alexander Schmidt, Walter Kellermann, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Germany
SessionAUD-5: Active Noise Control, Echo Reduction, and Feedback Reduction 1: Echo Cancellation
LocationGather.Town
Session Time:Tuesday, 08 June, 16:30 - 17:15
Presentation Time:Tuesday, 08 June, 16:30 - 17:15
Presentation Poster
Topic Audio and Acoustic Signal Processing: [AUD-NEFR] Active Noise Control, Echo Reduction and Feedback Reduction
IEEE Xplore Open Preview  Click here to view in IEEE Xplore
Abstract In this contribution, we introduce a novel approach to noise-robust acoustic echo cancellation employing a complex-valued Deep Neural Network (DNN) for postfiltering. In a first step, early linear echo components are removed using a double-talk robust adaptive filter. The residual signal is subsequently processed by the proposed postfilter (PF). Due to its complex-valued nature, the PF allows to suppress unwanted signal components without introducing distortions to the near-end speaker. For training and evaluation, we exclusively use data from the ICASSP 2021 AEC challenge. Exploiting only a moderate amount of training data, we demonstrate the efficacy of the proposed method. Specifically, we show that the PF (i) benefits significantly from a preceding linear adaptive filter and (ii) significantly outperforms a conventional real-valued DNN-based PF.