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• W2952420909 abstract "Nonlinear acoustic echo cancellation AEC is a highly challenging task in a single-microphone; hence, the AEC technique with a microphone array has also been considered to more effectively reduce the residual echo. However, these algorithms track only a linear acoustic path between the loudspeaker and the microphone array. This study proposes a microphone array form of the single-microphone nonlinear AEC NAEC algorithm in the reverberant condition. We extend a single-microphone-based model of the nonlinear acoustic echo to the microphone array case and propose the modeling of the acoustic transfer function ATF vector extended with a power series using a state-space equation. The Kalman filter is also adapted to optimally and recursively estimate the ATF vector. Furthermore, low-rank approximation and multi-microphone Wiener filtering are applied to estimate the multi-microphone near-end speech covariance, which results in the microphone array NAEC algorithm showing a consistently outstanding performance under severe signal-to-echo ratio SER and highly reverberant conditions. Consequently, our approach outperforms conventional methods regarding echo reduction and near-end speech quality for a wide range of SER and reverberation conditions." @default.
• W2952420909 created "2019-06-27" @default.
• W2952420909 creator A5002418613 @default.
• W2952420909 creator A5091696925 @default.
• W2952420909 date "2019-10-01" @default.
• W2952420909 modified "2023-09-24" @default.
• W2952420909 title "State-Space Microphone Array Nonlinear Acoustic Echo Cancellation Using Multi-Microphone Near-End Speech Covariance" @default.
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• W2952420909 doi "https://doi.org/10.1109/taslp.2019.2923969" @default.
• W2952420909 hasPublicationYear "2019" @default.
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