Go To Program 65 A Phase Robust Spectral Magnitude Estimator for Acoustic Echo Suppression Oystein Birkenes 1 1 TANDBERG, now a part of Cisco, Oslo, Norway Acoustic echo cancellation (AEC) using linear adaptive filters breaks down during phase variations in the echo path. Such phase variations frequently occur on personal computer platforms. Acoustic echo suppression (AES) has been proposed as a more robust method than AEC. In this method, the spectral magnitude of the echo needs to be estimated. Existing approaches to spectral magnitude estimation are either non-robust or inaccurate. In this paper we present a new spectral magnitude estimator, which is accurate and at the same time robust to phase variations. View pdf